Thread: Wheres my pcm?

I'm seeing 2-3 more mpgs with the tune, maybe it's the 94 octane I'm running?

Originally Posted by skylar44

I'm seeing 2-3 more mpgs with the tune, maybe it's the 94 octane I'm running?

Either your car was running bad with no tune, Or your driving it differently now. I haven't got to drive long enough to see any difference, But I only got a 87 octane tune because this is my DD.