[Sav.]

Originally Posted by drymite

So what tune should i use for my n54 i fill 94 petro can but on the mhd app acn91 91oct -93-95 it skips 94 or is the Ron : CAD94 petro 94 the tune i should use

Honestly, without a tune I don't believe there's any point running higher than 91. That's what our cars are rated for. When I didn't have a tune and I ran 94(and wasn't driving like an absolute madman) I would notice a little better mileage - not worth it for the cost difference, especially with gas prices now!