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#18
05-06-2019, 07:51 PM
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I have been running 87 in my 6.2 (not towing with it) as the price for premium has escalated higher than diesel. With the lower octane I have managed a new MPG high score on the display (33.5 for last 25 miles, 29.5 last 50). When I go to tow again I will def fill up back up with 91. But whats to say we are getting 91 out of the hose? Esp when there is only 1 hose for three fuel grades. I know they dont dedicate a truck for each fuel either.
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