Date: Thu, 04 Feb 1999 00:14:50 GMT From: bulwnklnopsambee_emm.net (Eoin) Subject: Re: how to love my Saab
I pretty well agree. If you call (for example) Kendall, who makes and markets both conventional and synthetic, they'll tell you straight out that a synthetic's main differences are: 1) Better resistance to oxidation, and 2) A higher "natural" (meaning before the addition of viscosity-improving polymers) viscosity index. They also say that they don't mind selling you the synthetic, but that it's a very large waste of money for most people, and that you still probably can't increase your drain interval because the additive package (the most important part of any oil) will break down LONG before the synthetic base stock. The notion that synthetics are "slicker" is outdated. Any particular oil may be very good in any particular test of its abilities without regard to whether it's a synthetic or not. If all you think you want is the highest score on a 4-ball wear test, use Preparation-H. It'll blow Amsoil into the weeds, but it's a terrible choice for a motor oil. --Eoin On Wed, 03 Feb 1999 16:41:49 -0800, Ken Washington <kenwashnopsam.net> wrote: >I agree with you on the use of mineral versus synthetic oil. I had an 83 >900T 5spd I tried Castrol Syntec in back in 1993. I did not care for >that oil at all. Yes, I also had a minor leak with the synthetic. I went >back to using Castrol GTX 10W30 or 10W40. That is what I continued to >use in my 87 900S and my current 87 9000S, both 5 spds. The one >exception is I have been using Militec-1 since January of 94. I don't >sell it. I just use it and it works. I would rather change my oil and >filter every 3500 to 5000 miles using mineral oil, than use a synthetic >and try to push my changes to 10,000 miles plus. Synthetic oil is >expensive. Will I ever use it. Maybe in my 5 spd, but not in the engine. >Why? The trans is good for 30,000 miles between changes. > >Ken Washington >87 9000S >87 900S >83 900T >
![]() |
![]() |
![]() |
![]() |
![]() |