Would chipping/flashing my ECU *really* benefit me?

[jstreet0204]

17.6 mpg average before tune
19.0 mpg after tune (aka Predator)

+1.4mpg = ~ 8% increase in gas milage

@ current gas prices the 8% milage boost has easily made the Predator pay for itself over the past year and a half since purchasing it.

But is that the premium fuel tune? If so the extra you are paying for premium fuel is eating up your savings from the better mileage.

 

[Pertums]

But is that the premium fuel tune? If so the extra you are paying for premium fuel is eating up your savings from the better mileage.

Yes it's the premium tune. I haven't played around with the factory style tune much since I prefer to grab the extra ponies with the adv timing, etc. I'll drive this tank of gas as low as I can and put on a regular gas tune and run it for a bunch of fillups and see how the milage increases from there.

To me the mpg isn't about the $$ as much as it is about getting further on a tank of gas. That's the difference between running out of gas on the highway and coasting in just in time for that next fillup