AMSOIL Oil ??????
Thread Starter
Racer
Joined: Mar 2006
Posts: 348
Likes: 39
From: Lumberton Texas
My question was not to start a debate, but to find out experiences of those who have used it. I think Mobil 1 is an excellent oil but if i am like all other corvette owners we want the best for our cars and if i can buy it and use it 3 times longer than other oils why wouldn't I. Its not about daily driving or spirited driving its about using the best product in my Z06 that's out there. AMSOIL may not make a short term difference but it could prolong engine wear and maybe your first major breakdown is at 250,000 miles instead of 150,000 miles, who knows.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
I want to know if anyone has any factual opion on AMSOIL Oil in their cars and does it lower the temperature as it claims. I just read a 28 page lab comparison test performed by The American Petroleum Institute (API) on AMSOIL versus 9 other full synthetics including Mobil 1 and Royal Purple and it decimated them in all catagories such as vescosity breakdown, shear wear, foaming, oxidation protection and many other tests. And the change interval is 25,000 miles between oil changes that AMSOIL states. What are your thoughts and experience? This lap test is on the AMSOIL website.
As for facts, a little hard to pull from opinions. I did run the AMSOIL Signature Series Synthetic 0w30 (Product Code SSOQT) in my 06 CTS-V (LS2 engine) and did used oil analysis samples with it. Here are the results:
Cadillac CTS-V Used Oil Analysis - AMSOIL 0w30
Note: The June 07 sample was M1, the rest AMSOIL 0w30. If you have not read one of these before, wear metals are aluminum, iron, copper and lead. Calcium is a detergent. TBN is the total base number of the oil and a measure of both its acidity at the end of the test (lower is worse) and its useful remaining life. Phosphorus and zinc are anti-wear additives, but phosphorus is limited in API SM/ILSAC GF-4 oils to 800 ppm.
FYI, for all, I can get you 25% off retail via the AMSOIL Preferred Customer Program. Drop me a PM for more info or exact pricing.
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C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
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From: US
I want to know if anyone has any factual opion on AMSOIL Oil in their cars and does it lower the temperature as it claims. I just read a 28 page lab comparison test performed by The American Petroleum Institute (API) on AMSOIL versus 9 other full synthetics including Mobil 1 and Royal Purple and it decimated them in all catagories such as vescosity breakdown, shear wear, foaming, oxidation protection and many other tests. And the change interval is 25,000 miles between oil changes that AMSOIL states. What are your thoughts and experience? This lap test is on the AMSOIL website.
Race Director
Joined: Jan 2006
Posts: 10,554
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From: Not on either liberal coast.
Has anybody personally experienced an engine failure from any brand of oil, dino or synthetic? I have nothing against AMSOIL (use it in my six speed), but I'll use MOBIL 1 in the motor until GM says different. Isn't it great we have freedom to chose?
I do like AMSOIL in my bbq marinade.
I do like AMSOIL in my bbq marinade.
Last edited by hotwheels57; May 16, 2010 at 02:35 PM.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
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From: King George VA
I lost my original stock engine running Mobil 1 20w50 way back in 03 in my first season with the SCCA (which is what prompted my shift to AMSOIL). In my case, I seized the bearings in #3,4 pistons. Probably due to insufficient bearing clearance, but I still wonder if a better oil would have prevented failure until the end of the season.
The LS3's are having a terrible time on the track and the SCCA has now allowed a dry sump for that engine. And there are many cases of the LS7s failing due to various causes, most not bearing failures.
If you search "engine failure" on this forum, you will likely find much sad reading.
Race Director
Joined: Aug 1999
Posts: 11,117
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From: SE Pennsylvania
St. Jude Donor '03 thru '26
Oldtimer
Has anybody personally experienced an engine failure from any brand of oil, dino or synthetic? I have nothing against AMSOIL (use it in my six speed), but I'll use MOBIL 1 in the motor until GM says different. Isn't it great we have freedom to chose?
I do like AMSOIL in my bbq marinade.
I do like AMSOIL in my bbq marinade.
But to all of you who have had excellant services with Amsoil or Castrol or Pennsoil, fine, I hope your engine goes on for many thousands of miles. Hopefully you'll see many, many more good service from whatever you pour into the crankcase.
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Melting Slicks
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Like Mentioned here and in other threads, Many, many people have driven their Corvttes and other personal vehicles up to and beyong 300.000 miles using Mobil-1 synthetic. I have had nothing but excellant service from Mobil-1. I know and I respect any one elses opinion on a different motor oil. Good luck and god bless you and all of your experiences with any other motor oil. I am not a chemical engineer so I have to believe that GM and the other twenty or so automobile manufactures who use Mobil-1 as their Factory Fill, and I find it difficult to think they use it because there's not a better motor oil. But I find the idea that they were paid to use Mobil-1 ridiculous.
But to all of you who have had excellant services with Amsoil or Castrol or Pennsoil, fine, I hope your engine goes on for many thousands of miles. Hopefully you'll see many, many more good service from whatever you pour into the crankcase.
But to all of you who have had excellant services with Amsoil or Castrol or Pennsoil, fine, I hope your engine goes on for many thousands of miles. Hopefully you'll see many, many more good service from whatever you pour into the crankcase.
So I guess if what your saying is true, that if GM, Porsche, Ford ect....All say hey when we first fill up our cars with gas we use nothing but Wal-Mart Gas brand and nothing else. So dose that mean its the best out there b/c they use it and there a logo on our gas caps?
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From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
How do you find that ridiculous, Mobil is one of the biggest oil company's in the world, this was a great way to expand there name even more. I don't see how this is not possible. I mean seriously this is a "OIL" Company were talking about last time I checked gas and oil prices have not gone down, it always has and always be about the money. Now im not saying they outright paid them but im sure they did say hey we will give you all the oil you need to fill up your vehicles for the next 10 years if you put our logo on all your oil caps.
So I guess if what your saying is true, that if GM, Porsche, Ford ect....All say hey when we first fill up our cars with gas we use nothing but Wal-Mart Gas brand and nothing else. So dose that mean its the best out there b/c they use it and there a logo on our gas caps?
So I guess if what your saying is true, that if GM, Porsche, Ford ect....All say hey when we first fill up our cars with gas we use nothing but Wal-Mart Gas brand and nothing else. So dose that mean its the best out there b/c they use it and there a logo on our gas caps?
Safety Car
Joined: Sep 2000
Posts: 3,572
Likes: 420
From: Taildragers rule! USA1
I want to know if anyone has any factual opion on AMSOIL Oil in their cars and does it lower the temperature as it claims. I just read a 28 page lab comparison test performed by The American Petroleum Institute (API) on AMSOIL versus 9 other full synthetics including Mobil 1 and Royal Purple and it decimated them in all catagories such as vescosity breakdown, shear wear, foaming, oxidation protection and many other tests. And the change interval is 25,000 miles between oil changes that AMSOIL states. What are your thoughts and experience? This lap test is on the AMSOIL website.
Race Director
Joined: Jul 2007
Posts: 18,681
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From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
Le Mans Master
Joined: Jul 2009
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From: Los Angeles California
Advanced
Joined: Jan 2005
Posts: 85
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From: Michigan
Many substitutes for Mobil 1. Things change with time, thus so does oil. Mobil 1 is not bad, but improvements in the industry are always raising the bar. My advice: balance cost, performance and your comfort zone and then pick your oil. Google produced the following link/list:
GM Approved Engine Oil
High Performance Engine Oil Specifications
GM4718M Registered Products
Revision Date: 1-June-2009
Product Name/ SAE Viscosity / Grades
76 Super Synthetic Motor Oil 5W-30, 10W-30
AC Delco Full Synthetic 5W-30
Castrol Edge 5W-30, 10W-30
Castrol SLX Professional 4718 5W-30
Chevron Supreme Synthetic 5W-30, 10W-30
Coastal High Performance Full Synthetic 5W-30
Kendall GT-1 Ultimate Synthetic Motor Oil 5W-30, 10W-30
Mobil 1
0W-20, 0W-30, 5W-30,
10W-30
Northland, Synergy Synthetic 5W-30
Pennzoil Platinum Full Synthetic 5W-30, 10W-30
Pinnacle National Synthetic 5W-30
Q HorsePower 5W-30, 10W-30
Service Pro Full Synthetic 5W-30
Texaco Havoline Synthetic 5W-30, 10W-30
Valvoline SynPower 5W-30, 10W-30
Warren Full Synthetic 5W-30, 10W-30
GM Approved Engine Oil
High Performance Engine Oil Specifications
GM4718M Registered Products
Revision Date: 1-June-2009
Product Name/ SAE Viscosity / Grades
76 Super Synthetic Motor Oil 5W-30, 10W-30
AC Delco Full Synthetic 5W-30
Castrol Edge 5W-30, 10W-30
Castrol SLX Professional 4718 5W-30
Chevron Supreme Synthetic 5W-30, 10W-30
Coastal High Performance Full Synthetic 5W-30
Kendall GT-1 Ultimate Synthetic Motor Oil 5W-30, 10W-30
Mobil 1
0W-20, 0W-30, 5W-30,
10W-30
Northland, Synergy Synthetic 5W-30
Pennzoil Platinum Full Synthetic 5W-30, 10W-30
Pinnacle National Synthetic 5W-30
Q HorsePower 5W-30, 10W-30
Service Pro Full Synthetic 5W-30
Texaco Havoline Synthetic 5W-30, 10W-30
Valvoline SynPower 5W-30, 10W-30
Warren Full Synthetic 5W-30, 10W-30
Thread Starter
Racer
Joined: Mar 2006
Posts: 348
Likes: 39
From: Lumberton Texas
Well guys this discussion is interesting and there are alot of opions out there, i am looking for facts about the oils comparrison by Vette Owners and the only one I have seen so far was from Subdriver. Does anyone else have any comparisons facts ( not beliefs or personal opinion) but facts based off them using different oils and camparison.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
I'm on my phone right now so I don't have the link, but google "Bob the oil guy" and look at all the oil analysis records done for Amsoil and compare them with other oils. It's no longer opinions. It's science. It's a proven fact that the engine wears better with Amsoil than Mobil1. Enough tests have been performed to make an informed decision.
Safety Car
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
Mobil 1 is 100% full synthetic.
http://www.mobiloil.com/USA-English/...Qs.aspx#FAQs22
http://www.mobiloil.com/USA-English/...Qs.aspx#FAQs22
When I heard that Mobil1 burns faster and loses it's viscosity much faster than RP, RL and Amsoil, I started doing research.
Mobil1's base stock changed from full synthetic to a group 3 synthetic. RP also is a group 3 synthetic.
The major difference between Amsoil and Mobil1 is that Amsoil is 100% synthetic because it's a group 4 synthetic. It will definitely out-perform Mobil1 in all aspects.
That's not to say it's bad to use Mobil1. My next oil change, however, will be Amsoil. I don't even know what's in the car now since I just got it. My last oil change on the other Z was Penzoil Platinum, which I believe is also a group 3 and it worked just fine.
Mobil1's base stock changed from full synthetic to a group 3 synthetic. RP also is a group 3 synthetic.
The major difference between Amsoil and Mobil1 is that Amsoil is 100% synthetic because it's a group 4 synthetic. It will definitely out-perform Mobil1 in all aspects.
That's not to say it's bad to use Mobil1. My next oil change, however, will be Amsoil. I don't even know what's in the car now since I just got it. My last oil change on the other Z was Penzoil Platinum, which I believe is also a group 3 and it worked just fine.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
Supreme court ruled that group 3 oils (crude base stock with synthetic additives) is allowed to be called a full synthetic because there's such a high concentrated amount of synthetic additives. Group 2 oil (also crude oil based) is considered a blend because there isn't enough synthetics in it to be called a group 3 oil.
Note the following:
What's the difference between a fully synthetic and a synthetic blend motor oil?
All motor oils are made up of base oils and additives. In general, fully synthetic motor oils contain non-conventional, high-performance fluids. Semi-synthetic oils (also called "blends") usually use a small percentage of non-conventional, high-performance fluids in combination with conventional base oil.
All motor oils are made up of base oils and additives. In general, fully synthetic motor oils contain non-conventional, high-performance fluids. Semi-synthetic oils (also called "blends") usually use a small percentage of non-conventional, high-performance fluids in combination with conventional base oil.
IMO, it's BS and they shouldn't be allowed to say they're full synthetic if they're really not full synthetic. Mobil1 thought the same thing before they sued Castrol for calling themselves 100% synthetic when they were in-fact just group 3 oil.
Here are the oil groups and their explanations:
http://www.pecuniary.com/faq/oil-base-stock.html
As you can see, Mobil1 is not a 100% full synthetic even though they advertise that they are.
Safety Car
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
How do I know what motor oil is a Group IV (4) based PAO synthetic motor oil?
As more and more large oil companies switched their "synthetic" motor oils to the less expensive/more profitable Group III (3) base stocks it has become much easier to identify which are PAO based true synthetic. Of the large oil companies, only Mobil 1, as of this writing (12-15-2007), is still a PAO based true synthetic. The rest, including Castrol Syntec, have switched to the cheaper/more profitable Group III (3) petroleum based "synthetic" motor oil. AMSOIL Synthetic Motor Oils are PAO based true synthetic motor oils with the exception of the short oil drain XL-7500 synthetic motor oils sold at some Auto Parts Stores and Quick Oil Change Centers. This leaves more than 20 PAO based true synthetic motor oils manufactured and marketed by AMSOIL with only 4 Group III (3) based synthetic motor oils identified by the "XL-7500" product name.
http://www.upmpg.com/tech_articles/m...ity/index.html
As more and more large oil companies switched their "synthetic" motor oils to the less expensive/more profitable Group III (3) base stocks it has become much easier to identify which are PAO based true synthetic. Of the large oil companies, only Mobil 1, as of this writing (12-15-2007), is still a PAO based true synthetic. The rest, including Castrol Syntec, have switched to the cheaper/more profitable Group III (3) petroleum based "synthetic" motor oil. AMSOIL Synthetic Motor Oils are PAO based true synthetic motor oils with the exception of the short oil drain XL-7500 synthetic motor oils sold at some Auto Parts Stores and Quick Oil Change Centers. This leaves more than 20 PAO based true synthetic motor oils manufactured and marketed by AMSOIL with only 4 Group III (3) based synthetic motor oils identified by the "XL-7500" product name.
http://www.upmpg.com/tech_articles/m...ity/index.html
LOL! It's a group 3 full synthetic... That doesn't make it a full synthetic. They're allowed to call it a full synthetic even though the base stock is still crude oil.
Supreme court ruled that group 3 oils (crude base stock with synthetic additives) is allowed to be called a full synthetic because there's such a high concentrated amount of synthetic additives. Group 2 oil (also crude oil based) is considered a blend because there isn't enough synthetics in it to be called a group 3 oil.
Note the following:
This is just double talk and tap-dancing around the question. They're basically saying it's OK to call themselves a full synthetic because "In general, fully synthetic motor oils contain non-conventional, high-performance fluids." HOWEVER, group 4 oils do not contain crude oil as their base which is why they're far more expensive than group 3 oils.
IMO, it's BS and they shouldn't be allowed to say they're full synthetic if they're really not full synthetic. Mobil1 thought the same thing before they sued Castrol for calling themselves 100% synthetic when they were in-fact just group 3 oil.
Here are the oil groups and their explanations:
http://www.pecuniary.com/faq/oil-base-stock.html
As you can see, Mobil1 is not a 100% full synthetic even though they advertise that they are.
Supreme court ruled that group 3 oils (crude base stock with synthetic additives) is allowed to be called a full synthetic because there's such a high concentrated amount of synthetic additives. Group 2 oil (also crude oil based) is considered a blend because there isn't enough synthetics in it to be called a group 3 oil.
Note the following:
This is just double talk and tap-dancing around the question. They're basically saying it's OK to call themselves a full synthetic because "In general, fully synthetic motor oils contain non-conventional, high-performance fluids." HOWEVER, group 4 oils do not contain crude oil as their base which is why they're far more expensive than group 3 oils.
IMO, it's BS and they shouldn't be allowed to say they're full synthetic if they're really not full synthetic. Mobil1 thought the same thing before they sued Castrol for calling themselves 100% synthetic when they were in-fact just group 3 oil.
Here are the oil groups and their explanations:
http://www.pecuniary.com/faq/oil-base-stock.html
As you can see, Mobil1 is not a 100% full synthetic even though they advertise that they are.
