Originally Posted by Fast Willy
This is a great product and will help not only with power all over the board but with this as well....
That is all highway driving with the A/C on.
What tune did you use? 93 Octane or 91?
I'd like to buy one, but the owners manual suggests using mid grade fuel, which is 89 octane here and the Diablo doesn't have a tune for 89 and I don't want to use the 93 Octane tune and have to pay more for gas.....
But If I get this kind of mileage, it will be worth it....!