Quote:
Originally Posted by theholycow
That said, why the heck would someone put 10w30 in an engine designed for 5w20? I would think that it's obvious to most people that the engine may not be capable of moving the thicker oil fast enough...but I'm no engine engineer, so I can't say that I'm SURE of that idea. I just know that they have a lot to lose by specifying less than the perfect oil weight; a reputation for early engine failure will destroy sales quickly, so what the manual specifies is almost certainly the right weight.
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Well the answer to that is simple MOST people Who Are NOT car enthusiests either dont . A) CARE. B) KNOW. Or C) are just to STUPID to look.
Most The Ones I Deal With Are a combination of A) and B).
And Then there are the ones who have
""just always done it that way, and its never hurt it before..""