Originally Posted by glaizinman
I have 07 ram with the hemi I'm getting atunner soon do I need to start running the 92 now?
No, you don't have to. For one, the tuner will have 87 tunes in it as well... so you can always run that first. But if you do want to bump up to a 92 tune it's a good idea to run a tank of it through first before bumping up the tune.