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Re: Pep Boyz
John Cunningham wrote:
>
> scott - think you had a renegade '0' slip in between the 7 and the 4, which
> actually supports the protection-over-mileage argument better anyway...
100,000 / 20 = 5000
100,000 / 20.3 = 4296
5000 - 4296 = 704
Unlike most of the oil-related rants one sees on the Net, I really did
not know in advance and was really not trying to arrange a set of
dubious facts to suit a predetermined position. :-) The 704 is
unequestionably correct; the number I question is the .3, whether 1.5%
fuel economy is way too low or way too high to expect from going up or
down a grade in oil. I can't defend where I read the 1 to 2% figure, so
if anyone has an SAE paper to cite, I'd love to know.
--Scott "up to 40% less spurious data than the leading brand" Fisher