HD Engine Oils
Full-synthetic diesel and gasoline formulations engineered for heat, load, and long drains.
Consumer · Heavy-Duty Lubrication
Heavy-duty protection for the machines you depend on.
Red Fox HD Lubrication delivers premium engine oils, gear oils, hydraulic fluids, and greases for diesel pickups, RVs, equipment, and hard-working powersports — with a dedicated oil analysis program so you can prove the protection.
Built to work as hard as you do
Gear & Drivetrain
Differential, transmission, and gear oils that hold up under towing and torque.
Hydraulics & Grease
Clean, stable hydraulic fluids and high-performance greases for every fitting.
Why HD owners choose Red Fox
Premium chemistry, backed by data.
Confidence
Know your protection is working
Every HD product pairs with the Red Fox HD Oil Analysis program. Send a sample, get a lab report, and see exactly how your equipment is wearing.
- Full-synthetic formulations
- Extended drain capability
- Wear-metal trending
- Straight-talk recommendations
Ready to protect your equipment?
Enroll in the HD Oil Analysis program and turn your used oil into a maintenance advantage.