Quote:
Originally Posted by flyman767
Not a tremendous amount of savings; however, these aren't numbers for just 1 or 2 fill-up; rather, these are the consistent numbers for each and every fill-up to date. Therefore, my conclusion running 89 vs 87: less overall cost, less carbon build-up, more MPG, more HP, slightly lower cruise rpm's. You can quote any mechanical theory you want, but the proof, as far as I'm concerned... is in the numbers.
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Thanks for sharing those numbers.
Unfortunately my trips to/from work, to lunch, etc are fairly sporadic so its hard to get the numbers locked down like that. With a mix of mostly highway, with a couple of side road trips (driving the same route to work gets old), a couple of off-road excursions my average is 17mpg. Perhaps I'll ease up on eating out for lunch so often, stop any unnecessary driving that could throw the numbers off and compare the octanes as well.