Lucas Oil 10146 Synthetic 50 Wt. Transmission Lubricant - 1 Gallon

Lucas Oil 10146 Synthetic 50 Wt. Transmission Lubricant is engineered specifically for heavy-duty truck transmissions while remaining versatile enough for a wide range of other drivetrain applications. This gallon-size fluid delivers advanced protection that goes far beyond what conventional gear oils offer.

Many standard gear oils rely on little more than base stock combined with sulfur and phosphorus additives as their anti-wear package. Lucas Oil considers this approach inadequate for modern heavy-duty transmissions. In fact, many leading heavy-duty truck transmission manufacturers now identify sulfur and phosphorus as potentially corrosive to copper and brass components, recommending against conventional gear oils for exactly this reason.

Key Features:

• Formulated specifically for heavy-duty truck transmissions
• Features an exclusive additive concentrate derived from synthetic oil
• Promotes lower operating temperatures compared to conventional fluids
• Delivers superior lubrication to upper bearings and gears
• Long-lasting formula outlasts conventional synthetic fluids
• Free of harmful components — safe for compatible transmission metals
• Superior to other 50 wt. synthetic gear oils that use pure base stock alone
• Available in a convenient 1-gallon container

Lucas Synthetic 50 Wt. Transmission Lubricant stands apart from competing synthetic options by incorporating a proprietary additive package rather than relying on base stock alone. The result is a fluid that runs cooler, protects more effectively, and lasts longer — making it an excellent choice for fleets and owner-operators who demand maximum drivetrain reliability.