- Joined
- Dec 13, 2011
- Posts
- 2,422
- Reaction score
- 480
- Ram Year
- 2022 3500 Laramie CCLB
- Engine
- 6.7L Diesel Cummins
I run 89 octane with a HF tune when pulling our 8500 pound GVW Flagstaff TT. With the tune and 89 octane I have noticed that the truck will just pull right up a smaller hill in 5th gear where before it would have to downshift a gear to make the same hill (probably more tune related than octane, but I have always done 89 when towing, even before the tune).
Okay, I have been on the fence on getting a tuner but it's on my next mod list, now at about $800+ it might be a while.
I switched to 89 after my first camping trip last year and I feel my 5.7 tows better with 89. Could just be in my head but I've stuck with 89 since.
Yes I do agree with you on this one, we planning on taking the rv out in April sometime so I will be running 89 octane in my ram.