10/08/2026
Red dye diesel is hitting more pumps right now.
With the temporary government allowance letting off-road (red dye) diesel be used in highway trucks through the end of the year, a lot of guys are going to see a cheaper option and fill up.
Chemically it’s still diesel. The problem is how a lot of it has been stored.
Off-road fuel is often kept in above-ground tanks, lower-volume sites, and setups with weaker filtration. Those tanks swing more with the weather, so condensation and water are common. Water doesn’t lubricate a high-pressure pump. On a CP4, that shows up as scoring, metal, and a fuel system that needs more than a filter.
We’ve seen more fuel-system failures on construction and farm equipment that lives on dyed fuel than on trucks that stay on high-turnover road diesel. With more of this fuel going into pickups over the next month or two, expect that gap to close in the wrong direction.
If you’re going to run it:
• Buy where volume is high
• Prefer underground tanks and stations that actually filter the fuel
• Don’t trust a slow farm tank or a pump that sits for weeks
• Keep a spare fuel filter on the truck and watch for power loss, hard starts, or a rattling pump
Cheap fuel isn’t cheap if it takes out the CP4, rails, and injectors.
Running into a fuel-system issue, or want it looked at before it becomes one? Message us and we’ll get you on the schedule. 🙏
813-626-8246
