Royal Purple?
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
Re: Royal Purple? (Silver 96)
In case anybody is still reading this thread for information instead of insults,
According to the local distributor, Royal Purple meets GM4718.
I emailed this inquiry to Amsoil and Red Line directly and added a few more.
I got this reply from Amsoil within an hour:
According to the local distributor, Royal Purple meets GM4718.
I emailed this inquiry to Amsoil and Red Line directly and added a few more.
I got this reply from Amsoil within an hour:
I used Mobil 1 last change.
Based on this thread and on Amsoil's response to your inquiry, I'll probably start using Amsoil 5W -30 from now on. Think I'll stick with K&N for the oil filter, though... :yesnod:
Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: Royal Purple? (Silver 96)
According to the local distributor, Royal Purple meets GM4718.
I did check and at least some of their oils meet API and this is good. I could not tell from the API sight which exact oils were tested, but good guess is the street grades.
It was predicted by one oil analysis firm (don't remember the name) that a blend could possibly pass the extra testing required by 4718M. But this would be a first, can anybody find the reference on a bottle of Royal Purple?
Pete
Le Mans Master
Joined: Jan 2001
Posts: 6,762
Likes: 0
Re: Royal Purple? (PeteL)
Hi, Pete:
Glad you haven't given up on this thread. Your questions are always at least thought provoking and I think you have made a very positive and informative contribution to this discussion.
In response, I should clarify that the distributor was contacted by phone and seemed to be confirming by reading the label. Also, he indicated that the oil met GM4718, I assumed he meant GM4718M - is there a difference? I'm still waiting for the official response from Royal Purple.
Edit: I'm still waiting for a response from Red Line, too.
Bob
[Modified by Silver 96, 10:26 PM 3/18/2002]
Glad you haven't given up on this thread. Your questions are always at least thought provoking and I think you have made a very positive and informative contribution to this discussion.
In response, I should clarify that the distributor was contacted by phone and seemed to be confirming by reading the label. Also, he indicated that the oil met GM4718, I assumed he meant GM4718M - is there a difference? I'm still waiting for the official response from Royal Purple.
Edit: I'm still waiting for a response from Red Line, too.
Bob
[Modified by Silver 96, 10:26 PM 3/18/2002]
Drifting
Joined: Jun 2001
Posts: 1,997
Likes: 1
From: Lake Ozark MO
Re: Royal Purple? (95_C4_convertible)
I'm with PeteL on this topic. If you use the manufacturers recommended oil/filter while using the recommended changing intervals then you will increase the chance of your engine not failing due to lubrication issues.
But even though two engines were assembled side by side... maybe by the same person... using parts from the same lot... then used under the same conditions, there is no guarantee that both engines will last the same amout of time.
Parts break... whether you did your best to maintain them or not. It's just one of the unknowns. All you can do is maximize your chances for longevity.
All things being equal... I'd give ANY oil and filter (meeting the maker's requirements) the same odds on providing protection. If one oil was that much superior to another then they'd have a rating all their own that none of the others could match. I've not seen that yet.
I'm sure there are plenty of engines that ran Redline, Royal Purple, etc. .. and still exploded their guts all over the place. And I bet it's the same percentage of users as with any other oils.
Don't get hung up on oil/filter brands. None of you can come up with concrete data giving the average lifespan of automotive engines using particular brands of oils. There are too many variables.
So, use whatever gives you peace of mind. But don't claim your decision was based on anything other than how you "felt" about a particular product. As long as products (oils in this case) meet a widely accepted standard then I'm sure all will provide nearly equal performance.
But even though two engines were assembled side by side... maybe by the same person... using parts from the same lot... then used under the same conditions, there is no guarantee that both engines will last the same amout of time.
Parts break... whether you did your best to maintain them or not. It's just one of the unknowns. All you can do is maximize your chances for longevity.
All things being equal... I'd give ANY oil and filter (meeting the maker's requirements) the same odds on providing protection. If one oil was that much superior to another then they'd have a rating all their own that none of the others could match. I've not seen that yet.
I'm sure there are plenty of engines that ran Redline, Royal Purple, etc. .. and still exploded their guts all over the place. And I bet it's the same percentage of users as with any other oils.
Don't get hung up on oil/filter brands. None of you can come up with concrete data giving the average lifespan of automotive engines using particular brands of oils. There are too many variables.
So, use whatever gives you peace of mind. But don't claim your decision was based on anything other than how you "felt" about a particular product. As long as products (oils in this case) meet a widely accepted standard then I'm sure all will provide nearly equal performance.
Le Mans Master
Joined: Dec 2000
Posts: 7,096
Likes: 153
From: "Atlanta" Ga.
Re: Royal Purple? (Dan Parker '96)
Hey,
Good comments Dan.
Pete you have gone to long lengths to be objective and I appreciate your input, but I have to know, what do you use and how often do you change it?
I realize that giving that info will open your comments to the claims you have a favorite, so email if you would. I sure would appreciate it, this thread has only served to confuse me. I am sure that all of these oils are very good but I seem to remember Slick 50 being this great thing unitl the gov't made them prove their claims.
If one of these oils is better then I sure would change, I use mobile one now and change it every 3,000 miles. I think that with this interval (3,000 miles between changes) that they would all fair about the same way. I dont want to get the most miles between changes, I want the best protection I can get.
Gonzo
Good comments Dan.
Pete you have gone to long lengths to be objective and I appreciate your input, but I have to know, what do you use and how often do you change it?
I realize that giving that info will open your comments to the claims you have a favorite, so email if you would. I sure would appreciate it, this thread has only served to confuse me. I am sure that all of these oils are very good but I seem to remember Slick 50 being this great thing unitl the gov't made them prove their claims.
If one of these oils is better then I sure would change, I use mobile one now and change it every 3,000 miles. I think that with this interval (3,000 miles between changes) that they would all fair about the same way. I dont want to get the most miles between changes, I want the best protection I can get.
Gonzo
Le Mans Master
Joined: Jan 2001
Posts: 6,762
Likes: 0
Re: Royal Purple? (Gonzo)
I received the following response from Red Line last night (It was sent to my work address, so I didn't read it until this AM):
I will post Royal Purple's reply as soon as I receive it.
>I am considering using your product in my car, a '96 Corvette with a
>Lingenfelter 383 c.i. engine, and I would like to know if it meets
>GM4718M.
>
>Thanks,
>Bob Nicholson
The Red Line 5W30 and 10W30 will both satisfy the GM motor oil specification.
Thank you for your interest in Red Line Oil.
>I have some further questions:
>
>1. Is your product completely synthetic or does it contain petroleum
>derivatives?
The Red Line lubricants don't contain any petroleum products and/or
derivatives.
>
>2. What is the difference between "ester based" and "synthetic
>hydrocarbons?
The polyol ester molecules have superior thermal stability compared
to synthetic hydrocarbons and diesters and their relatively localized
polarity makes them poorer solvents, allowing better bonding to the
metal surface which reduces friction and wear.
The synthetic hydrocarbon base stocks of poly alpha olefin. It has
many of the same properties as petroleum and is a pure hydrocarbon
which is the same class as the majority of petroleum molecules.
Synthetic hydrocarbons are manufactured to enhance the good
properties and minimize the poor properties of petroleum.
>
>3. Which is better and why?
The advantages of the polyol ester are better film strength, the
highest available for better protection under extreme conditions -
only oxygen containing base stocks such as esters will form a
physically absorbed film on metal.
Synthetic hydrocarbon lubes are cheaper to produce.
>
>4. Which category does your product fall into?
The Red Line lubricants use polyol ester Group V base stocks.
>
>Thanks,
>Bob Nicholson
Thank you for your interest in Red Line Oil.
>Lingenfelter 383 c.i. engine, and I would like to know if it meets
>GM4718M.
>
>Thanks,
>Bob Nicholson
The Red Line 5W30 and 10W30 will both satisfy the GM motor oil specification.
Thank you for your interest in Red Line Oil.
>I have some further questions:
>
>1. Is your product completely synthetic or does it contain petroleum
>derivatives?
The Red Line lubricants don't contain any petroleum products and/or
derivatives.
>
>2. What is the difference between "ester based" and "synthetic
>hydrocarbons?
The polyol ester molecules have superior thermal stability compared
to synthetic hydrocarbons and diesters and their relatively localized
polarity makes them poorer solvents, allowing better bonding to the
metal surface which reduces friction and wear.
The synthetic hydrocarbon base stocks of poly alpha olefin. It has
many of the same properties as petroleum and is a pure hydrocarbon
which is the same class as the majority of petroleum molecules.
Synthetic hydrocarbons are manufactured to enhance the good
properties and minimize the poor properties of petroleum.
>
>3. Which is better and why?
The advantages of the polyol ester are better film strength, the
highest available for better protection under extreme conditions -
only oxygen containing base stocks such as esters will form a
physically absorbed film on metal.
Synthetic hydrocarbon lubes are cheaper to produce.
>
>4. Which category does your product fall into?
The Red Line lubricants use polyol ester Group V base stocks.
>
>Thanks,
>Bob Nicholson
Thank you for your interest in Red Line Oil.
Le Mans Master
Joined: Jan 2001
Posts: 6,762
Likes: 0
Re: Royal Purple? (Silver 96)
...and while we're waiting: http://www.pelicanparts.com/techarti...il_article.htm
:D
:D
Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: Royal Purple? (Silver 96)
Here is the e-mail Redline sent me some weeks back:
" are suitable " " will meet "
They are suitable for API uses, but have not been tested to API. That is clear.
But " will meet GM4718M? Was it tested. I don't think so, as it has not been tested to API which is also a requirement, so why would it be tested to GM4718M? No answer - answer!
MARKETING!
I did not ask if it " will meet ", I asked if it was tested and DOES MEET the standard.
I still believe that it is has merit as an oil, and many of us don't have a warranty to worry about. But it is hard to have faith when questions are side stepped like a $20 lawyer. Just impossible to get good answers about oil.
Pete
>For use in an LS1 and LS6 Corvette engine, for street use:
>
>Does Redline Oil meet API specifications and has the oil been tested to
>and have API ratings?
Our motor oils are suitable for use where an API SG, SH, and SJ oil
is specified, but they have not been submitted for these tests.
>
>Has Redline oil been tested and met GM4718M for use in the LS1 LS6
>Corvette engines?
The Red Line 5W30 and 10W30 will satisfy the GM4718M requirements.
>
>Is their any reason that Redline oil could be used as an excuse to void
>the factory warranty, and what would that reason be?
>
>Thanks,
>
>Pete
I wouldn't expect that the use of Red Line would be used as an excuse
in a warranty claim, but it is hard to say. They can use any number
of reasons where warranty claims are involved. I would recommend
reading the owners manual as a basis to determine lubricant
requirements.
Thank you for your interest in Red Line Oil.
>
>Does Redline Oil meet API specifications and has the oil been tested to
>and have API ratings?
Our motor oils are suitable for use where an API SG, SH, and SJ oil
is specified, but they have not been submitted for these tests.
>
>Has Redline oil been tested and met GM4718M for use in the LS1 LS6
>Corvette engines?
The Red Line 5W30 and 10W30 will satisfy the GM4718M requirements.
>
>Is their any reason that Redline oil could be used as an excuse to void
>the factory warranty, and what would that reason be?
>
>Thanks,
>
>Pete
I wouldn't expect that the use of Red Line would be used as an excuse
in a warranty claim, but it is hard to say. They can use any number
of reasons where warranty claims are involved. I would recommend
reading the owners manual as a basis to determine lubricant
requirements.
Thank you for your interest in Red Line Oil.
" are suitable " " will meet "
They are suitable for API uses, but have not been tested to API. That is clear.
But " will meet GM4718M? Was it tested. I don't think so, as it has not been tested to API which is also a requirement, so why would it be tested to GM4718M? No answer - answer!
MARKETING!
I did not ask if it " will meet ", I asked if it was tested and DOES MEET the standard.
I still believe that it is has merit as an oil, and many of us don't have a warranty to worry about. But it is hard to have faith when questions are side stepped like a $20 lawyer. Just impossible to get good answers about oil.
Pete
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Le Mans Master
Joined: Jan 2001
Posts: 6,762
Likes: 0
Re: Royal Purple? (PeteL)
Excellent point. I had missed the subtlety of their wording. Proves that the question can be just as important as the answer.
I'm one of those who don't have an engine warranty due to modifications, but I think GM must have had a reason for devising a new standard. If anything, modified engines put more demands on lubricants than stock, so maybe we need to be a little more fussy.
I'm one of those who don't have an engine warranty due to modifications, but I think GM must have had a reason for devising a new standard. If anything, modified engines put more demands on lubricants than stock, so maybe we need to be a little more fussy.
Burning Brakes
Joined: Sep 2001
Posts: 986
Likes: 0
From: Raleigh NC
Re: Royal Purple? (Silver 96)
Well i've read this thread 2 times from start to finish. I've learned a lot about what oil "IS" but some of y'all are saying that every single oil is bad and that they are all crooks. Well $-hit. I guess i will choose "none of the above" and pee in my engine. It MAY meet GM189037498 and API standards... better than giving in to the oil tycoons. :smash:
[Modified by Jenny, 7:47 AM 3/21/2002]
[Modified by Jenny, 7:47 AM 3/21/2002]
Safety Car
Joined: May 1999
Posts: 4,445
Likes: 0
From: Mandeville, Louisiana
Re: Royal Purple? (Jenny)
Thats what I am talking about Jenny! I think I am parking my cars, and riding my bicycle for now on! Screw those damn oil tycoons! I'll show them! I am going to become a "tree hugging liberal"!!!!
Burning Brakes
Joined: Sep 2001
Posts: 986
Likes: 0
From: Raleigh NC
Re: Royal Purple? (Eric 96)
Da-mn right!Screw these charlatans!!! :lol: Hahhahah seriously, enough is enough! Change your oil every 3-5K and your engine will be fine no matter what. End of story! :yesnod:
[Modified by Jenny, 4:03 PM 3/21/2002]
[Modified by Jenny, 4:03 PM 3/21/2002]
Drifting
Joined: Nov 2001
Posts: 1,783
Likes: 2
From: Latham NY
Re: Royal Purple?
Here is the email I sent Royal Purple:
I'm wondering what make your blended SAE oil better/different from a 100% synthetic like Mobil 1, Redline, or Amsoil. I tend to be technically minded and like to understand the underlying reason how one product is better than another.
Here is the reply:
Walt,
Keep in mind a 100% synthetic fully formulated engine oil, to my knowledge, does not exist. I believe Mobil 1 actually calls this out on their "100% Synthetic" motor oils with an asterisk which reads on the back label in fine print "exclusive of carrier oils and additives". Synthetic base oils possess poor additive solubility however, possess excellent compatibility with mineral base oils. Therefore mineral base oils are used in formulations as diluents or carrier oils for uniform suspension of the additives.
RP has unique proprietary technology. The Synerlec additive technology is the foundation of Royal Purple offering film strength and oxidation resistance commonly found to be 3 to 5 times that of other mineral or synthetic oils for a significant reduction in friction and increased oil life. RP does not simply rely on the synthetic base oils for performance. Despite how synthetic engine oils are marketed, while synthetic base oils do offer benefits in certain regards the performance of the finished product greatly depends on additives. As well, Synerlec technology is non-corrosive keeping Royal Purple within API specifications. RP does not simply elevate the levels of the anti-wear package placing them well out of the realm of API licensing (anti-wear elements are typically corrosive in concentration) as some high end engine oil manufacturers choose to do. Look for the API service donut on a couple of the products mentioned- I don't believe you'll find it.
Thanks again,
Jared Martin
Royal Purple Ltd.
Sounds like they are saying that their additive package is better than the other oils but I'm still confused about oil :crazy:
I'm wondering what make your blended SAE oil better/different from a 100% synthetic like Mobil 1, Redline, or Amsoil. I tend to be technically minded and like to understand the underlying reason how one product is better than another.
Here is the reply:
Walt,
Keep in mind a 100% synthetic fully formulated engine oil, to my knowledge, does not exist. I believe Mobil 1 actually calls this out on their "100% Synthetic" motor oils with an asterisk which reads on the back label in fine print "exclusive of carrier oils and additives". Synthetic base oils possess poor additive solubility however, possess excellent compatibility with mineral base oils. Therefore mineral base oils are used in formulations as diluents or carrier oils for uniform suspension of the additives.
RP has unique proprietary technology. The Synerlec additive technology is the foundation of Royal Purple offering film strength and oxidation resistance commonly found to be 3 to 5 times that of other mineral or synthetic oils for a significant reduction in friction and increased oil life. RP does not simply rely on the synthetic base oils for performance. Despite how synthetic engine oils are marketed, while synthetic base oils do offer benefits in certain regards the performance of the finished product greatly depends on additives. As well, Synerlec technology is non-corrosive keeping Royal Purple within API specifications. RP does not simply elevate the levels of the anti-wear package placing them well out of the realm of API licensing (anti-wear elements are typically corrosive in concentration) as some high end engine oil manufacturers choose to do. Look for the API service donut on a couple of the products mentioned- I don't believe you'll find it.
Thanks again,
Jared Martin
Royal Purple Ltd.
Sounds like they are saying that their additive package is better than the other oils but I'm still confused about oil :crazy:
Safety Car
Joined: May 1999
Posts: 4,445
Likes: 0
From: Mandeville, Louisiana
Re: Royal Purple? (Bluevette85)
I think it does say that their products carry API Seal on them.
I feel good about using Royal Purple, and still feel I am using something that is superior to the rest.
I feel good about using Royal Purple, and still feel I am using something that is superior to the rest.
Le Mans Master
Joined: Jan 2001
Posts: 6,762
Likes: 0
Re: Royal Purple? (Eric 96)
Here is the reply I received from Royal Purple last night:
All I've decided at this point is that I will have the Mobil 1 that's in my engine now analyzed just before my next oil change (it costs $16 Cdn). If I decide to switch brands, I will do the same with the new brand. I plan to continue changing the oil every 5,000 km.
A friend of mine drives a BMW 750il (V-12) and uses Mobil 1. He has been getting his oil analysed every 5,000 km and just changes the filter. At 15,000 km the Mobil 1 properties were still within acceptable parameters so changing the oil was not considered necessary. He should hit 20,000 km on this oil within a month. It will be interesting to see how the next analysis turns out. He said he's going to change the oil this time regardless of the results of the analysis.
Bob,
Royal Purple SAE 5w30 and SAE 10w30 exceed GM4718M
specifications.
1. Is your product completely synthetic or does it contain petroleum
derivatives?
I do not know of a fully formulated engine oil available that
does not contain some percentage of Group I, II, or III (mineral) base
oils. In some cases this would be in the fine print on oils labeled
"Fully or 100% Synthetic". Synthetic base oils in general possess poor
additive solubility, therefore mineral base oils are normally used as a
carrier or diluent oil for the automotive additive packages. Royal
Purple is primarily Group IV synthetic PAO based however the additive
packages do contain mineral base oils used as diluent or carrier oils.
Regardless, RP does not simply rely on the benefits offered by the base
oils for performance. The increased film strength, oxidation resistance,
shear stability, corrosion resistance, anti-foaming, air release
properties, etc. are improved by the proprietary RP Synerlec additive
technology which is unique to Royal Purple products.
2. What is the difference between "ester based" and "synthetic
hydrocarbons?
Different derivatives; esters are derived from alcohol, synthetic
hydrocarbons are derived from crude oil (natural gas streams fed to
chemical plants).
3. Which is better and why?
In a fully formulated automotive engine oil, synthetic
hydrocarbons are better suited which is why they are by far the most
widely used in automotive lubricants. PAO's possess excellent mineral
oil compatibility for additive suspension whereas polyol ester's
compatibility with mineral oils is poorer. PAO's possess greater
hydrolytic stability separating rapidly from water (a by-product of
combustion) whereas polyol ester's can revert back to alcohols. In
regard to oxidative stability, thermal stability speaking simply of the
base oils, a polyol ester has a slight advantage. However, you're not
using just the base oil in a motor. You would be putting in a fully
formulated oil which typically would consist of 75-85% base oil, 15-25%
additives (of which 90% of the additive package is the mineral carrier
oil), so additives are the defining factor. Considering the synthetic
hydrocarbons greater compatibility with mineral oils, the synthetic
hydrocarbon has greater potential for performance tweaking- evening the
score or in many cases exceeding the performance capabilities of POE.
Polyol Ester base oils are best suited to turbine oils as these are
predominately an R&O (rust and oxidation) oils containing little or no
additives (about 2.5%). Polyol esters typically have a slightly higher
viscosity index comparing base oil to base oil. This is a large factor
in turbine engines that see temperature variances from 400F operating
temps to -50F ambient operating conditions. When a jet aircraft takes
off the oil is usually thermally shocked from an ambient of 60-90 F at
sea level to operating in a -50 F air inlet environment at 35,000 feet.
This thermal shock makes it difficult to keep additives in solution.
Making a polyol ester an ideal candidate for a jet turbine application.
However, this does not translate to ground based turbines or
reciprocating gas / diesel engines. Another type of ester, Diester base
oils as used primarily in reciprocating air compressors but suffer from
hydrolyzing (absorbing water) and also are harder on elastomers.
It really comes down to not better and why but what is better for a
given application and under what set of operating conditions. There are
many synthetic base oil types, including silicones and perfluorinated
halocarbons, synthetic glycols, etc that all have advantages in
different applications.
We feel that the PAO (synthetic hydrocarbon) is the better choice for
use in a combustion engine. We also agreed that a polyol ester is
ideally suited for aircraft turbine use but has some drawbacks and
weaknesses when applied in motor oils.
Thank you,
Jared Martin
Royal Purple Ltd.
Royal Purple SAE 5w30 and SAE 10w30 exceed GM4718M
specifications.
1. Is your product completely synthetic or does it contain petroleum
derivatives?
I do not know of a fully formulated engine oil available that
does not contain some percentage of Group I, II, or III (mineral) base
oils. In some cases this would be in the fine print on oils labeled
"Fully or 100% Synthetic". Synthetic base oils in general possess poor
additive solubility, therefore mineral base oils are normally used as a
carrier or diluent oil for the automotive additive packages. Royal
Purple is primarily Group IV synthetic PAO based however the additive
packages do contain mineral base oils used as diluent or carrier oils.
Regardless, RP does not simply rely on the benefits offered by the base
oils for performance. The increased film strength, oxidation resistance,
shear stability, corrosion resistance, anti-foaming, air release
properties, etc. are improved by the proprietary RP Synerlec additive
technology which is unique to Royal Purple products.
2. What is the difference between "ester based" and "synthetic
hydrocarbons?
Different derivatives; esters are derived from alcohol, synthetic
hydrocarbons are derived from crude oil (natural gas streams fed to
chemical plants).
3. Which is better and why?
In a fully formulated automotive engine oil, synthetic
hydrocarbons are better suited which is why they are by far the most
widely used in automotive lubricants. PAO's possess excellent mineral
oil compatibility for additive suspension whereas polyol ester's
compatibility with mineral oils is poorer. PAO's possess greater
hydrolytic stability separating rapidly from water (a by-product of
combustion) whereas polyol ester's can revert back to alcohols. In
regard to oxidative stability, thermal stability speaking simply of the
base oils, a polyol ester has a slight advantage. However, you're not
using just the base oil in a motor. You would be putting in a fully
formulated oil which typically would consist of 75-85% base oil, 15-25%
additives (of which 90% of the additive package is the mineral carrier
oil), so additives are the defining factor. Considering the synthetic
hydrocarbons greater compatibility with mineral oils, the synthetic
hydrocarbon has greater potential for performance tweaking- evening the
score or in many cases exceeding the performance capabilities of POE.
Polyol Ester base oils are best suited to turbine oils as these are
predominately an R&O (rust and oxidation) oils containing little or no
additives (about 2.5%). Polyol esters typically have a slightly higher
viscosity index comparing base oil to base oil. This is a large factor
in turbine engines that see temperature variances from 400F operating
temps to -50F ambient operating conditions. When a jet aircraft takes
off the oil is usually thermally shocked from an ambient of 60-90 F at
sea level to operating in a -50 F air inlet environment at 35,000 feet.
This thermal shock makes it difficult to keep additives in solution.
Making a polyol ester an ideal candidate for a jet turbine application.
However, this does not translate to ground based turbines or
reciprocating gas / diesel engines. Another type of ester, Diester base
oils as used primarily in reciprocating air compressors but suffer from
hydrolyzing (absorbing water) and also are harder on elastomers.
It really comes down to not better and why but what is better for a
given application and under what set of operating conditions. There are
many synthetic base oil types, including silicones and perfluorinated
halocarbons, synthetic glycols, etc that all have advantages in
different applications.
We feel that the PAO (synthetic hydrocarbon) is the better choice for
use in a combustion engine. We also agreed that a polyol ester is
ideally suited for aircraft turbine use but has some drawbacks and
weaknesses when applied in motor oils.
Thank you,
Jared Martin
Royal Purple Ltd.
A friend of mine drives a BMW 750il (V-12) and uses Mobil 1. He has been getting his oil analysed every 5,000 km and just changes the filter. At 15,000 km the Mobil 1 properties were still within acceptable parameters so changing the oil was not considered necessary. He should hit 20,000 km on this oil within a month. It will be interesting to see how the next analysis turns out. He said he's going to change the oil this time regardless of the results of the analysis.
Safety Car
Joined: May 1999
Posts: 4,445
Likes: 0
From: Mandeville, Louisiana
Re: Royal Purple? (Silver 96)
Silver 96, I do use the Royal Purple Street Blend in my wife's 200 Mustang GT Vert. I go 5,000 miles, change the filter, then go another 5,000 miles and change teh oil and the filter. I plan on doing the same in my '96 LT4.
Instructor
Joined: Feb 2002
Posts: 233
Likes: 0
From: Warner Robins Ga.
Re: Royal Purple? (95_C4_convertible)
I have 12 quarts of Royal Purple #11(5W20) Synthetic Racing Oil in a box(from Jegs--$7.99/qt. + $7.99{?}, handling) next to my desk. They arrived today.
There is no 'star-burst' emblem on the purple, plastic bottle.
I know some of you may discount what I have to say because I've never owned a Corvette. I do 'care' for my Lightning as religiously as you do for your Vette.
I started useing RP in my L at 4,000 mile. It now has 23,600 miles on it. I also use the K&N Gold oil filter. My L is driven 70-80 miles every week day and is raced at the 1/4 mile strip almost every weekend. It has been thru 5 dyno pulls too.
This is only empirical 'evidence' and 'proves' little but I plan to continue using RP for the life of my eng. It has certainly been reliable with some fairly severe service. Some of our Ls have eng. 'noise' issues. Piston-slap, marbles-in-the-can, etc. have been mentioned in our forums. My L suffers from none of these noises, has, no measureable oil useage, and makes pretty good power.
Btw, I used Redline in my 1991 Z281L5 that was driver-schooled as well as a daily driver. My wife's 97 Gran Prix and my 97 xlt f150 get Mobil 1.
Thanks for the interesting thread.
Dan
There is no 'star-burst' emblem on the purple, plastic bottle.
I know some of you may discount what I have to say because I've never owned a Corvette. I do 'care' for my Lightning as religiously as you do for your Vette.
I started useing RP in my L at 4,000 mile. It now has 23,600 miles on it. I also use the K&N Gold oil filter. My L is driven 70-80 miles every week day and is raced at the 1/4 mile strip almost every weekend. It has been thru 5 dyno pulls too.
This is only empirical 'evidence' and 'proves' little but I plan to continue using RP for the life of my eng. It has certainly been reliable with some fairly severe service. Some of our Ls have eng. 'noise' issues. Piston-slap, marbles-in-the-can, etc. have been mentioned in our forums. My L suffers from none of these noises, has, no measureable oil useage, and makes pretty good power.
Btw, I used Redline in my 1991 Z281L5 that was driver-schooled as well as a daily driver. My wife's 97 Gran Prix and my 97 xlt f150 get Mobil 1.
Thanks for the interesting thread.
Dan
Le Mans Master
Joined: Dec 2000
Posts: 7,096
Likes: 153
From: "Atlanta" Ga.
Re: Royal Purple? (1REBEL)
Hey 1 Rebel,
Those are some really nice trucks. I may love my vette but I know a class act when i see it. Can I ask how often you change you oil (RP). I am using mobile one and as I mentioned already change it every 3,ooo miles.
I'm not looking to extend the mileage between changes, are there other reasons to change to RP or others??
Gonzo
Those are some really nice trucks. I may love my vette but I know a class act when i see it. Can I ask how often you change you oil (RP). I am using mobile one and as I mentioned already change it every 3,ooo miles.
I'm not looking to extend the mileage between changes, are there other reasons to change to RP or others??
Gonzo
