AMSOIL 80W-140 Long Life 100% Synthetic Gear Lube

Description

AMSOIL 80W-140 Long Life 100% Synthetic Gear Lube is engineered to provide up to 500,000 miles of service life in over-the-road trucks, setting it apart from conventional gear oils. Its blend of high-quality synthetic base oils and advanced additives defends gears against acid, carbon, and varnish buildup, resulting in cleaner components and longer durability.

APPLICATIONS

AMSOIL 80W-140 Long Life Synthetic Gear Lube covers a broad range of needs, fitting heavy-duty trucks, off-road machinery, SUV differentials, commercial vehicles, and more. Certified to meet or surpass API GL-5 & MT-1, along with OEM specs such as MIL-PRF-2105E and Dana SHAES, it supports extensive compatibility and reliable protection even under demanding conditions.

The formula improves cold-weather shifting, protects gears and bearings from wear under high stress, and offers corrosion resistance to extend component life. It also boosts seal longevity, lowering the risk of leaks that lead to premature wear.

Drain intervals depend on use and manufacturer guidance, with some Class 8 line-haul trucks achieving intervals up to 500,000 miles. For other vehicles, doubling the interval for traditional gear oils is a practical alternative where synthetic specs aren’t specified.

COMPATIBILITY

It can be combined with conventional gear oils, although this reduces performance advantages and limits extended drain benefits. This gear lube is suitable for most limited-slip differentials; if clutch chatter occurs, pairing it with AMSOIL Slip-Lock friction modifier is recommended.

When compared with alternatives like Mobil Delvac and Shell Spirax, AMSOIL retains viscosity better and extends wear protection during long service periods. This makes it a trustworthy choice for operators who require stable performance and longer gear life in harsh or high-mileage environments.

WARRANTY & SAFETY

The product carries a Limited Liability Warranty, and its Safety Data Sheet confirms safe use when handled as directed. Used oil and containers should be recycled properly.

*Trademarks noted belong to their owners without AMSOIL endorsement.*

• Up to 500,000 miles of service life for over-the-road truck gear protection
• Formulated with premium synthetic base oils and advanced additives
• Meets or exceeds API GL-5, MT-1, MIL-PRF-2105E, and Dana SHAES specifications
• Reduces friction, acid, carbon, and varnish buildup for cleaner gears
• Compatible with most limited-slip differentials; use Slip-Lock if chatter occurs