87 OCTANE Switch on the EcuTune Stage 1 v4 chip

[sd2649]

I live in the middle of Texas and the elevation here is 1350 ft or so. So I am guessing I could be running 87 octane fuel without any issues??? You did say 850 ft, not 8500, right?? A chart or some estimate numbers of what altitude which octane is needed would help out the pockets of our fellow forum members. I infact intend on filling up on 87 octane for the first time EVER tomorrow and seeing how the old girl does. But really, info like this is GOLD with gas prices so ridiculous these days, and my 120mile round trip commute everyday!!!