[Z06] Oil Question
Anyway, we all have differing opinions, that leads to good honest debate.
I just thought it was a little unfair to say that AMSOIL didn't "make" or "produce" its synthetics. AMSOIL buys the ingredients (in this case base stock and additives) for its lubdricants just like any other manufacturer buys materials to "make" its products. I'd guess that the vast majority of companies don't "make" the ingredients for their products, they buy them. Anyone think Redline "makes" the ester base of their lubricants?
As for the buying method, for me, I'd rather have the convenience of having the product show up on my doorstep than have to make a run to Walmart. My time during the week is limited and I normally can't make it to the store. But I can order products online after my daughters have gone to bed. I actually buy almost all the stuff I get for the Z06 online now. To each his own.


C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
I have run Mobil 1, Penzoil, Royal Purple (race oil) and, most recently, Amsoil. All do an excellent job of lubricating the driveline of these fine automobiles IMHO. Frequency of changes and how the car is driven should be a consideration when selecting lubricants, and will have a lot to do with wear and terar - probably as much or more than the lubricant selected - especially for street use.
For now I am an Amsoil fan, I run their 20W50 racing oil in the motor, and their synthetic in the tranny and also use their gear lube. And no, I am not an Amsoil distributor, but people who's opinions I trust - and who are in the business of building high performance motors, recommend Amsoil, so that is what I run. Zero complaints, zero problems.
Les
While I really don't want to get into a debate with you on oils, I'll give you the benefit of the doubt and assume your motivation for posting is to help protect other forum members from overspending on an oil they don't need. With that as a perspective, I'd like to take the opportunity to clarify a couple of your points so everyone can make their own, hopefully unbiased, decisions.
Who makes AMSOIL?
- AMSOILs SAE synthetics, including the Series 2000/3000 oils, are formulated with advanced Polyalphaolefin (PAO) synthetic base stocks. You are correct in stating that AMSOIL doesn't make this synthetic base stock, they buy it. But the true differences in synthetic oils are what the companies do with this base stock in terms of additives. AMSOIL mixes in its own additives at their plant in Wisconsin. As a note, this is the same base stock that Mobil 1 now uses with their Super Syn formula.
Who sells AMSOIL?
- For reasons unknown to me, the founder of AMSOIL chose to sell his oil through independent dealers instead of retail chains. As the oil become more popular and retail chains wanted to sell it, the company has maintained its loyalty to its independent dealers and has turned down offers from numerous companies, including Walmart, to sell oil at their stores.
- While this method may not be traditional, it doesn't imply the product is substandard. Several very reputable and successful companies sell products via this method, including Pampered Chef, Discovery Toys, Longaberger, and I believe Snap On.
How much does AMSOIL cost?
- The retail price for AMSOIL SAE Synthetic 5w30 is $5.95 a quart, or $5.85 a quart if you buy a gallon bottle or a 12 quart case.
- Preferred Customers pay about 20% less than these prices. Cost to become a preferred customer is $10 per six months.
- While the retail price of AMSOIL is slightly more than Mobil 1, the preferred customer program price is comparible. And the retail price of AMSOIL is much less than Red Line.
Biased test results?
- These tests were commissioned by AMSOIL, but they were done by an independent lab whose business depends on unbiased reporting:
Comparative Oil Test
AMSOIL vs Mobile 1 Oil Test
- I found this link on this forum on another thread showing a listing of motor oil technical specifications:
Motor Oil Technical Specifications
- I also found this test on this forum which shows AMSOIL compares favorably to Mobil 1 (one year, 14k miles, no oil filter change and lower wear than Mobil 1):
Synthetic Oil Life Study
AMSOIL History:
•First to develop an API-rated 100 percent synthetic motor oil (1972).
•First to introduce the concept of "extended drain intervals" with a recommended 25,000-mile/1-year drain interval.
•First U.S. company to utilize the NOACK volatility test as a standard of performance excellence.
•First to produce synthetic motor oils for diesel engines, racing engines, turbo and marine engines.
•First to introduce synthetic oils that legitimately contribute to improving fuel efficiency.
•First to manufacture synthetic gear lube for automotive use.
•First to manufacture a 100:1 pre-mix synthetic 2-cycle oil.
•First to manufacture a synthetic automatic transmission fluid for automotive use.
Please don't take any of the above to imply I am saying Mobil 1 is a bad oil. It clearly isn't. But it also isn't the only good oil on the market.
Buy AMSOIL at Wholesale
AMSOIL Preferred Customer Program allows you to buy any AMSOIL product at wholesale, which is about 15-20% less expensive than retail. Cost is $10 per six months and you can buy as much oil as you want during that six months. To sign up, all it takes is one phone call to 1-800-777-7094. Give them reference number 1206638.
Or you can use this link:
AMSOIL Preferred Customer Program
Again, please put 1206638 in the customer number block.









