Edge CTS2 programmer questions.

[Jewett_Sam]

I have a 2005 chevy 2500hd with a 6.0 and I have the edge cts2 tuner and I love it but just not quite getting some things on it.

1. I have no idea on changing tune settings and was wondering if someone can talk me though that.

2. Looking on going on a snowmobile trip in couple days and wondering on some things on towing mode. (Do I really need to run 91 oct? Do I need towing mode or is there a different models I should use? How should I tune my truck for this trip? Any help would be great and if you have any questions I can answer let me know.

[davester]

If you are just towing 1 or 2 snowmobiles, it's not really that much weight to require tow-haul mode. And there's no reason to use 91 octane either..

[Jewett_Sam]

I'm hauling 2 sleds in my bed (on a sled deck) and 3 in an enclosed trailer. Also what's difference if I use 89 or 91.