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[csisterh]

any mpg increase with custom tune?

[dirtydizzle2007]

@csisterh on the 87 tune, not so much, unless I'm cruising the highway for the majority of a tank. I've seen up to 23-24 on just short of half a tank doing 68-70 on I-45 in Texas.

The 93 octane is a bit more noticeable as long as I stay out of the throttle in town. I've seen about a 0.5-1 mpg in the city driving a meaningful distance (> 5-6 miles)