Quote:
Originally Posted by rmay635703
Most vehicles now days are 10:1 + compression, my vehicle will run full advance on 87 octane but bucks at low RPM and then pulls timing until my rpms increase.
Most new vehicles benefit from higher octane due to the way they can alter timing (OBDII anyone) but the benefit may not be significantly better FE, for me it was about 2mpg going from 87 e10 to 89e10, but on 48-52mpg that is only about 4% or so. It was about the same differance as going from 87e10 to 87e0
Cheers
Ryan
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Maybe I should have stated what vehicle I used. Lol! I used my 2012 F150 for my analysis. My manual also states that it runs at a minimum of 87 octane, which is why I went higher. The bare bone results I received on my 500km rides were this. Regular 87, 74 liters equally $74 at a controlled speed of 95km/h... Midgrade 89, 59 liters equally $62 at a controlled speed of 105km/h. That being said I saved twelve loonies and got to where I wanted to get, sooner... Spend more to save more...