Diablosport Forums

Just curious if any octane fuel can be used with the MPG booster tune, towing tune and modified stock tune. Do these tunes even have a specific octane requirement that needs to be used, like the performance tunes do?

In other words, can I run any octane fuel with these tunes and get my money's worth from premium fuel?

In other, other words, I wanna rest assured that, if one day I decide to put 91 in the tank after a while of using 87, while the computer is tuned with, let's say the MPG booster tune, will this tune actually let the computer adjust to and run the engine on the higher octane fuel the way it should, unlike what the factory tune will do if you put premium in when it's only designed to run on regular.

Yes, those tunes can be used with a min of 87 octane.

Ok...

So, I should maybe not see so much of a mileage increase but, I should see at least more power and performance the higher I go in grade of gas..... Correct?

I may not ever run premium in my pickup while it's brain is programmed to the MPG booster tune, since the whole idea in my opinion regarding that particular tune is to save you money at the pump, both in usage and in price per gallon but, as I basically stated before, if it's best I run regular with this tune, I'd rather go that route and get the most bang for my buck on 87.