Home · 2021 Ford F-650 Roush Propane · Complaints

What 4 owners told NHTSA about the 2021 Ford F-650 Roush Propane

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (4)Brakes (2)Fuel system (1)Fuel System, Diesel (1)Service Brakes, Air (1)Transmission & drivetrain (1)Wheels (1)

1 of 4 complaints match · Transmission & drivetrain · clear filters

Oct 13, 2022Transmission & drivetrainWheelsBrakes

The driver reported an intermittent burnt oil smell from rear of truck. We found the axle leaking gear oil, with gear oil soaking the brake pads and pooling in the wheel. Took to Ford dealer, where it was confirmed by the dealer and repaired under warranty.

NHTSA ODI 11489168

Working with the data? Download all 4 complaints as CSV · fetched from NHTSA July 26, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 Ford F-650 Roush Propane verdict →