Royal Purple.......
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,671
Likes: 4
From: MI
Royal Purple.......
I am planning on changing all of my fluids over to Royal Purple. Going to change the engine oil, Flush the trany, and change the rear end fluid. I am waiting to get the fluids in and may have some questions when it comes to changing all of them in a few weeks.
My question today is has anyone switched over all of these fluids and noticed or seen a difference in performance. I know it is not going to increase it that much if any but has anyone done a before and after Dyno on a C5 after changing them.
Also how many mile can you go on the engine oil with Royal Purple? A sales rep form royal purple told me I would be good for 10,000 miles.
My question today is has anyone switched over all of these fluids and noticed or seen a difference in performance. I know it is not going to increase it that much if any but has anyone done a before and after Dyno on a C5 after changing them.
Also how many mile can you go on the engine oil with Royal Purple? A sales rep form royal purple told me I would be good for 10,000 miles.
Safety Car
Joined: Dec 2004
Posts: 3,526
Likes: 18
From: Santa Fe TX
I used RP max ATF (Dexron III compatible) in the MN6 tranny and noticed an immediate difference for the better, only to find many others are using Manual Syncromax with even better results(I beleive RP has since updated their website to recommend syncromax for C5) .
I used RP in the 3.42 rear end. Never a problem before and none now.
I have used RP oil in 2001 LS1 trans am, but didn't notice it being substantially better than Mobil one. Due to the interval of oil change and the fact that RP is hard to get ahold of for less than $9 a quart locally, I stuck with $6 a quart mobil 1 engine oil on the vette.
I used to order RP by the case online and could get it for around $7 a quart shipped.
This is just my personal opinion, and keep in mind I'm OCD:
I wouldn't go more than 6 months or 5000 miles on any oil. No reason to risk it. Engine oil is the lifeblood of your engine and it will give you many trouble free miles as long as you religiously change the oil. This goes for almost any modern engine. Regardless of how long it will last in a lab test, oil gets dirty when driven in the real world -- especially in TX.
I used RP in the 3.42 rear end. Never a problem before and none now.
I have used RP oil in 2001 LS1 trans am, but didn't notice it being substantially better than Mobil one. Due to the interval of oil change and the fact that RP is hard to get ahold of for less than $9 a quart locally, I stuck with $6 a quart mobil 1 engine oil on the vette.
I used to order RP by the case online and could get it for around $7 a quart shipped.
This is just my personal opinion, and keep in mind I'm OCD:
I wouldn't go more than 6 months or 5000 miles on any oil. No reason to risk it. Engine oil is the lifeblood of your engine and it will give you many trouble free miles as long as you religiously change the oil. This goes for almost any modern engine. Regardless of how long it will last in a lab test, oil gets dirty when driven in the real world -- especially in TX.
Last edited by jedblanks; Mar 9, 2008 at 01:47 PM.
Pro
Joined: Aug 2007
Posts: 505
Likes: 2
From: VA
I just finished doing mine. I used the Sychomax in the transmission and 75w90 in the rear end. I haven't driven it yet. I was going to use Amsoil, but I had to go 5 different places to piece what I needed together. One place would only sell to me by the case...as if I need 12 quarts of 75w90 or transmission fluid. After I drive it, I'll post back up.
Edit: make sure the pump you have fits in the neck of the Royal Purple bottle, mine didn't. I had 1/2 quart of Mobil1 synthetic ATF i sacraficed for the bottle. I had to poor the Royal Purple in the the Mobil1 bottle...A royal pain in the a$$
Edit: make sure the pump you have fits in the neck of the Royal Purple bottle, mine didn't. I had 1/2 quart of Mobil1 synthetic ATF i sacraficed for the bottle. I had to poor the Royal Purple in the the Mobil1 bottle...A royal pain in the a$$
Last edited by XXXLTRP; Mar 9, 2008 at 03:27 PM.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
Those who sign up for the AMSOIL Preferred Customer Program get AMSOIL products at wholesale, same price I pay as a dealer and about 25% under retail. AMSOIL ships via UPS and everything I order usually arrives about two business days after I order. Though shipping rates do vary (they go down per unit weight the larger the order), they are pretty reasonable and come out to about 88 cents per quart for all but the smallest of orders.
If you have any questions, please drop me a PM.
__________________
C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,671
Likes: 4
From: MI
I just finished doing mine. I used the Sychomax in the transmission and 75w90 in the rear end. I haven't driven it yet. I was going to use Amsoil, but I had to go 5 different places to piece what I needed together. One place would only sell to me by the case...as if I need 12 quarts of 75w90 or transmission fluid. After I drive it, I'll post back up.
Edit: make sure the pump you have fits in the neck of the Royal Purple bottle, mine didn't. I had 1/2 quart of Mobil1 synthetic ATF i sacraficed for the bottle. I had to poor the Royal Purple in the the Mobil1 bottle...A royal pain in the a$$
Edit: make sure the pump you have fits in the neck of the Royal Purple bottle, mine didn't. I had 1/2 quart of Mobil1 synthetic ATF i sacraficed for the bottle. I had to poor the Royal Purple in the the Mobil1 bottle...A royal pain in the a$$
Pro
Joined: Aug 2007
Posts: 505
Likes: 2
From: VA
Sorry to hijack the thread, but as an FYI, you can order AMSOIL online via the link to the left or the info in my signature (and the sale benefits my dealership and the forum if you use reference #1206638), and you can buy in any quantity you want and it will come to your house vice having to go find it.
Those who sign up for the AMSOIL Preferred Customer Program get AMSOIL products at wholesale, same price I pay as a dealer and about 25% under retail. AMSOIL ships via UPS and everything I order usually arrives about two business days after I order. Though shipping rates do vary (they go down per unit weight the larger the order), they are pretty reasonable and come out to about 88 cents per quart for all but the smallest of orders.
If you have any questions, please drop me a PM.
Those who sign up for the AMSOIL Preferred Customer Program get AMSOIL products at wholesale, same price I pay as a dealer and about 25% under retail. AMSOIL ships via UPS and everything I order usually arrives about two business days after I order. Though shipping rates do vary (they go down per unit weight the larger the order), they are pretty reasonable and come out to about 88 cents per quart for all but the smallest of orders.
If you have any questions, please drop me a PM.
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Pro
Joined: Aug 2007
Posts: 505
Likes: 2
From: VA
One like this
http://www.amsoil.com/storefront/g2039.aspx
Theres not enough room to tip the bottle and pout it in the transmission, maybe the diff...but it's easier with a pump.
I drove it some today after the fluid change. At first I couldn't notice much difference. After a few miles(maybe 10) the transmission got smoother. As for the rear diff, I can't tell really. I did it for piece of mind. I bought the car used in Nov with 55k on it. I drained out today, what I assume to be the original fluids.
http://www.amsoil.com/storefront/g2039.aspx
Theres not enough room to tip the bottle and pout it in the transmission, maybe the diff...but it's easier with a pump.
I drove it some today after the fluid change. At first I couldn't notice much difference. After a few miles(maybe 10) the transmission got smoother. As for the rear diff, I can't tell really. I did it for piece of mind. I bought the car used in Nov with 55k on it. I drained out today, what I assume to be the original fluids.
Pro
Joined: Aug 2007
Posts: 505
Likes: 2
From: VA
I have used it in my F.I. 460 for quite some time, no issues. I don't believe everything I read either. I know there are some people claiming bearings being spun..I don't know. It has served me well.
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,671
Likes: 4
From: MI
One like this
http://www.amsoil.com/storefront/g2039.aspx
Theres not enough room to tip the bottle and pout it in the transmission, maybe the diff...but it's easier with a pump.
I drove it some today after the fluid change. At first I couldn't notice much difference. After a few miles(maybe 10) the transmission got smoother. As for the rear diff, I can't tell really. I did it for piece of mind. I bought the car used in Nov with 55k on it. I drained out today, what I assume to be the original fluids.
http://www.amsoil.com/storefront/g2039.aspx
Theres not enough room to tip the bottle and pout it in the transmission, maybe the diff...but it's easier with a pump.
I drove it some today after the fluid change. At first I couldn't notice much difference. After a few miles(maybe 10) the transmission got smoother. As for the rear diff, I can't tell really. I did it for piece of mind. I bought the car used in Nov with 55k on it. I drained out today, what I assume to be the original fluids.
Thanks for the help and advice.
Melting Slicks
Joined: Feb 2007
Posts: 3,188
Likes: 10
From: New Smyrna Beach Florida
I would do some research befor you put RP in your engine!
There have been previous threads on RP in the engine. A well respected performance shop gave a very blunt opinion based on their experiences. I would do a search and check it out and then form your own judgements armed with more information.
Instructor
Joined: May 2007
Posts: 175
Likes: 0
I am not qualified to tell you what you should or should not use. But as stated in this post, please do a search and then make your decision.
I will say, GM spends millions on R&D, so If they recomend Mobil 1, then I am going to use it.
Instructor
Joined: Jan 2006
Posts: 240
Likes: 0
From: San Antonio TEXAS
Royal Purple
I'll keep this short and simple...
I have a friend deeply involved in lubricants technology. His word is Royal Purple is great stuff with bad quality control. One batch can differ greatly from others as far as additive content. Amsoil is great stuff all the time. I use Amsoil but don't think a normal human could tell the difference between any of them. Hope that helps
I have a friend deeply involved in lubricants technology. His word is Royal Purple is great stuff with bad quality control. One batch can differ greatly from others as far as additive content. Amsoil is great stuff all the time. I use Amsoil but don't think a normal human could tell the difference between any of them. Hope that helps
Racer
Joined: Oct 2006
Posts: 481
Likes: 26
From: Edmond Oklahoma
I have always used royal purple, great stuff, there is always going to be a nay-sayer. Amsoil is also one of the best. GM wouldn't recommend RP or Amsoil because half the vette owners would know what it is and not every lube center carries it as they probably do with Mobil 1.
Racer
Joined: Nov 2006
Posts: 264
Likes: 8
From: Centre, AL
RP is fine. Amsoil is fine. Mobil 1 is fine. I personally use RP and I like it, but if someone gave me Amsoil tomorrow for free, would not hesitate using that. These are all big brands, they are all researched, they all have teams of chemists behind them. More importantly than the brand is actually changing the oil frequently, and not let it sit in there for 100,000 miles.
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
IMHO...When you are buying boutique or exotic oils you are paying for joining the club...
Much like when you pay for designer jeans you are paying for the label not the material.
Buying any lubricant is dead simple...
4 questions
1. Is is good for my car ( does it meet/exceed the manufacturers spec?
2. Is it good for where I drive my car ( does it meet the viscosity requirements)?
3. Is it a brand that I know and trust?
4. Is it a price I am prepared to pay.
Buy any oil that gives you a yes to all 4 questions.
Personally Shell (also owns Pennzoil and Quaker) and Exxon Mobil are the top 2 in the world in lubricants.
If they make it... i buy it... no need to look any further.
Why spend more on botique/exotic oils ?
Much like when you pay for designer jeans you are paying for the label not the material.
Buying any lubricant is dead simple...
4 questions
1. Is is good for my car ( does it meet/exceed the manufacturers spec?
2. Is it good for where I drive my car ( does it meet the viscosity requirements)?
3. Is it a brand that I know and trust?
4. Is it a price I am prepared to pay.
Buy any oil that gives you a yes to all 4 questions.
Personally Shell (also owns Pennzoil and Quaker) and Exxon Mobil are the top 2 in the world in lubricants.
If they make it... i buy it... no need to look any further.
Why spend more on botique/exotic oils ?
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,671
Likes: 4
From: MI
I feel that mobile 1 is a great oil, have always ran it in my other vehicle. I think that GM recommends this oil probably do to a contract they have with them, Its a well know name, and reasonably priced synthetic.
I am not a NASCAR fan but was told that ever one of their cars run on RP, saying that it is superior to any other synthetic on performance and wear.
I am not a NASCAR fan but was told that ever one of their cars run on RP, saying that it is superior to any other synthetic on performance and wear.
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
"I am not a NASCAR fan but was told that ever one of their cars run on RP, saying that it is superior to any other synthetic on performance and wear. "
Whoever told you that is full of
I am absolutely certain that Kevin Harvick Shell/Pennzoil DOES NOT use anything but Shell/Pennzoil products......
Whoever told you that is full of
I am absolutely certain that Kevin Harvick Shell/Pennzoil DOES NOT use anything but Shell/Pennzoil products......