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Re: Re: a corrected little math for the inexpensive oil people
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Posted by Jimbob on February 11, 2003 at 11:13:51 from (207.89.249.92):
In Reply to: Re: a corrected little math for the inexpensive oil people posted by Randy on February 11, 2003 at 05:28:24:
The synthetic oil does not breakdown as quickly at high temperatures compared to regular oil. Thus, less oil contaminates means greater oil life. The old 10W-40 was full of polymers. The polymers would coil up when cold & uncoil when hot. This is how & why a multi-weight oil stays thicker at hot temperatures. One problem, the polymers breakdown at high temperatures creating contaminates. New car manufactures state NO 10W-40 oil. To fight this even more, notice the 5W-20 oil for sale? Thats right, less 'nasty' polymers in the oil. Gee, the old timers were pretty smart using straight weight oil in their engines!
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