Switching Octane
#21
05-06-2013, 10:15 AM
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#22
05-06-2013, 12:40 PM
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Join Date: May 2013
Location: Redlands, CA
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I use e85 during the summer months..the gas mileage difference isn't as drastic that way..It seems to run a little better on it (imho)..It's always 40-50 cents cheaper/gal here..The Ds were designed for it so why not take advantage of saving a few $? The real world diffences between it and reg gas are not as different as the guides make it seem..
#25
05-06-2013, 10:13 PM
Join Date: May 2012
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#26
05-07-2013, 12:47 AM
I feel the difference going from 87 to even just 89 and back to 87. the engine sounds different in my 11 Crew v6. I just stick with 89 since i do a lot of highway driving and sometimes on road trips ill go to 93 a couple days before so that the whole fuel system has 93 throughout.