Bullydog GT Diesel Tuner

[rlyons]

I purchased a GT Bullydog Diesel tuner for my 2008 - 2500 Ram with 6.7 Cummins primarily to get better mileage around town and better mileage and performance while towing my travel trailer. I also added an AFe cold air intake. I believe I am getting better mileage with these improvements but have not taken the Ram to the mountains to see how it performers there with the add ons. My question is, should I have the truck in "Tow" mode when trailer towing when using the Bullydog tuner in the "Tow" power setting or just leave it up to the BD tuner to do everything. Is the BD tuner just controlling power and does it play nice with the Rams tow mode or do they work against each other?

[1492]

Moved from Forum Technical Support

[ScottG]

Yes, use tow mode.

[travisej]

I believe you should have both in tow mode. The tuner will give you a little more power but i dont think it will program your shift points on your tranny. I have the GT for my 03 cummins but its a manual trans.