jim williams wrote:
> Can anyone tell me the ratio to mix 110 leaded octane
> with 93 unleaded to get a near 100 octane rating?
It's my understanding that it is straight math ratio -- i.e. a 50/50 mix
of 93 and 110 would yield 101½ octane.
Soooo... (93*x) + (110*(1-x)) = 100 solves at x = .588
You would use 58.8% 93 octane and 41.2% 110 octane to get 100 octane.
I've heard that this (mixing octanes) is how oil companies actually get
the various octanes they sell.
I should warn you... I think I learned this on "Car Talk" when someone
wanted to know if they could mix 87 & 93 and get 90 since the average
price of 87 & 93 was less than the price of 90.
Geo Hahn
59 TR3A
Tucson, AZ
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