John,
I think you are correct. All oils have to meet a certain API Standard. I
believe that most automotive oils have the same ratings and a diesel
will have a different API requirement. This subject gets to be a lot
like politics, everyone has a sincere belief which they promote. Not too
much real research to back it up. I have used many different brands with
no adverse results.
I use the 20W-50 Pennzoil at present. I have thought of going to a
lighter oil, but hate to fool with success.
Tom, Redding CA - #216 D/CC
John Beckett wrote:
> Sooo...the oil companies are charging us a little more and giving us a little
> less, again.
>
> Basically there is no reason why I can't buy a good quality 10W-30 (or what
> ever) off the shelf at Wal-Mart and have a well lubricated race engine.
>
> JB
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