Lucas Oil Heavy Duty Oil Stabilizer is a 100% petroleum-based additive designed to reduce engine wear, improve oil performance, and extend the life of internal components in gas and diesel engines. Ideal for heavy-duty equipment operating under extreme conditions, this oil stabilizer enhances lubrication, reduces oil consumption, and helps control heat and friction in both new and high-mileage engines.
Safe for use with synthetic and conventional oils, it maintains consistent viscosity across a wide temperature range and protects critical components in high-load environments.
Key Benefits of Lucas Oil H/D Oil Stabilizer:
- 100% petroleum formula for maximum lubrication and protection
- Reduces engine wear, oil consumption, and dry starts
- Stabilizes oil viscosity in high heat and under heavy load
- Safe for use in gas and diesel engines, gearboxes, and differentials
- 1-quart bottle ideal for topping off or maintenance intervals








