Yeah Dude, why do you bother anyway? If you dont like it why
dont you just delete it? I do that to all your postings without
reading them. I'm not going to bother with a reply on this one
because of 2 reasons. You wrote it and my English is not good
enough.
Marc Sayer wrote:
> Thomas in Sweden wrote:
> >
> > Synthetic is made from mineral oil but with many refining stages
> > before they add the different additives. In other words, they clean
> > away the junk first. Some of these oils have more aggressive
> > cleaners that eats away bad gaskets. Mobil 1 is reasonably safe to
> > use in most "broken in" engines.
>
> Wait a sec. First off synthoils come in two basic flavors, each of which is
>made
> from different base materials and in different ways, but neither is based on
> simple refined mineral oil. It is much, much more than simply cleaning the
>junk.
> It's more like breaking the base down into its component molecules and
>selecting
> out the molecules they want, then manufacturing a base stock with specific
> molecules. Second, the additives in synthoils DO NOT eat gaskets, period!
> Synthoils leak for many reasons, none of which has to do with the oil's
>ability
> to destroy parts. In the old days the synthoils did not cause rubber to swell
>as
> petroleum based oils did and many seals and rubber based gaskets would shrink
> (as they will do if you allow an engine to sit for years) and this caused
> leakage. But that issue was resolved 15-20 years ago. But at not time did
> synthoils do any damage to any parts, including gaskets. The additive packages
> in synthoils must meet the same specs and pass the same tests as any other
>oil,
> so when you buy a grade of oil (SF or whatever) be it in petro or syntho, it
> will meet the same strict requirements.
>
> --
> Marc Sayer
> 82 280ZXT
> 71 FJ510
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