Search Threads/posts by "JCL"...it's been beaten to a freakin pulp,
but I like his thesis and info.
I've used 89, frequently, on long trips where that tank is run through
in a day. Mpg is "trip-like", eg 22-23, regardless of whether it was 93,
91, or 89. No one here has quantitative data on their mpg, and all of
the opins, including mine, are simply anecdotal...
Run premium, run mid grade, run whatcha like...
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