Forum Discussion

T18skyguy's avatar
T18skyguy
Explorer
Feb 27, 2019

Bio-diesel / Is it a good or bad thing for the engine ?

I went to fill with diesel at my favorite Chevron station, and I noticed the diesel pump said something like S15. I had no choice at the time, so I only put in 10 gallons, cause I knew I could get bet...
Tow Vehicles
Bedlam's avatar
Bedlam
Moderator
Feb 27, 2019
My 6.0 Powerstroke liked running on B10 due to the additional lubricity in the fuel and I actually got better mileage with it than running straight ULSD with a friction modifier. If I remember correctly, that era of Powerstroke was only certified for B5 even though I ran a greater bio mix. My 6.7 Cummins is rated for B20 and I see no difference in performance or mileage between B20 and straight ULSD.

About Travel Trailer Group

44,029 PostsLatest Activity: Jan 19, 2025