cableguy_hd
Senior Member
- Joined
- May 2, 2013
- Posts
- 1,566
- Reaction score
- 437
- Location
- Danville, Va.
- Ram Year
- 2020 Ram 2500 CTD
- Engine
- 6.7 Cummings
so I put on the 91 octane superchips tune. I had 26 gal of 93 with 6 gal of 89 still in the tank. thought the average of the octane would be ok but everytime I would get on the pedal I would throw the code. I babied it home and went back to stock. havent thrown it again. could the 89 in the tank do this or something in the tune?
