on 2/13/04 4:11 PM, BARRY OLIVER at DHSPA58@dhs.state.il.us wrote:
> Well, I have heard everything from "it will destroy your engine" to "it
> dosen't matter.
As I stated, mixing 10W with 30W will get you something between 10 and 30,
and not necessarily 20W.
If you want mutiple weight oil, use a true multi weight oil, such as a
10W40, which, by nature is a semi synthetic, because to get the dino oil to
act as a multi, sythetics are added. In other words, there is no such thing
as a fully dino multi weight oil. It IS a synthetic blend.
Mixing two oils of different viscosities will do no harm to your engine.
Jon
STL MO
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