Syn Trans Lube 75/140 12 Qrts - Lucas Oil

The Lucas Oil Syn Trans Lube 75W-140 is a full synthetic gear oil engineered for the demanding conditions of professional automotive and industrial applications. This 12-quart case (Model 10121) provides robust protection and performance for heavy-duty differentials, axles, and manual transmissions operating under continuous high load and temperature conditions, making it an efficient solution for fleet maintenance or extensive shop inventory.

Key Features

• Stable Viscosity Film: Maintains a consistent 75W-140 viscosity film to ensure reliable lubrication and component protection across a wide operating temperature range and under high stress.
• Extreme Pressure Protection: Advanced additives provide superior cushioning, effectively mitigating scuffing and pitting in gear sets subjected to severe towing, hauling, and off-road demands.
• Integrated Friction Modifier: Includes a friction modifier, suitable for both standard and limited-slip differentials, often eliminating the need for additional additives in most applications.
• Yellow Metal Compatibility: Safe for use in systems containing sensitive yellow metals like brass or bronze, commonly found in specific manual transmissions and transfer cases.
• Seal Conditioning Properties: Formulated to help maintain the flexibility of seals, which can contribute to reduced leaks and extended service intervals for critical driveline components.

Applications

Lucas Oil 75W-140 gear oil is recommended for a broad range of professional uses, including rear and front differentials, final drives, and certain manual transmissions requiring SAE 75W-140 gear oil and meeting API GL-5 / MT-1 performance standards. This lubricant is ideal for work trucks, service vans, off-road equipment, and heavy-duty tow rigs. It also serves as an effective upgrade where SAE 85W-140 mineral gear oil is specified, offering enhanced cold-flow properties and improved high-temperature stability for consistent performance in varied climates.

Specifications

• Manufacturer: Lucas Oil
• Model Number: 10121
• Viscosity: SAE 75W-140
• API Performance: GL-5, MT-1; meets or exceeds SAE J2360, MIL-PRF-2105E, MACK GO-J, PG-2 Limited Slip
• Type: Full Synthetic Gear Oil
• Package: 12 x 1-quart bottles (approx. 25 lb case)