We have 89 here as an option, what if I got the APR 87 tune and ran 89. :unsure:
Sounds about right, I did a round trip LA -> SD almost all cruise control ~75mph (10E, 710S, 5S, 805S, 8E, 15N, 10W loop) that got me 34mpg. My normal commute only on the 10 and city driving gets me about...