Amsoil 75W-90 Severe Gear Lube Quart Easy-Pack – 100% Synthetic EP, High-Temp Stability & Cold-Start Protection

Amsoil SVGPK 75W-90 is a 100% synthetic extreme-pressure gear lubricant formulated to protect axle and manual transmission gears under severe-duty conditions.

Built for towing, commercial duty, racing and other heavy-load applications, this Amsoil Severe Gear Lube combines a full-synthetic base with robust extreme-pressure additives to resist thermal breakdown, reduce operating temperatures and control wear across a wide temperature range. Its formulation helps prevent formation of acids, carbon and varnish that shorten service life, making it a strong choice where equipment sees repeated high loads, high heat or frequent cold starts.

How does Amsoil SVGPK help protect gears during towing and hauling?

This gear oil delivers robust film strength and extreme-pressure protection to reduce metal-to-metal contact in high-load situations. It maintains viscosity and load-carrying capacity under elevated temperatures so gears stay protected during prolonged towing and heavy loads.

• Extreme-pressure additives cushion gear surfaces under shock loads
• Synthetic base resists viscosity loss at high operating temperatures
• Formulation reduces micro-pitting and wear during sustained heavy use

Will it perform in cold starts and winter conditions?

Yes—the 75W low-temperature rating helps the oil flow quickly on cold starts so gears receive protection immediately. That quicker lubrication reduces initial wear from startup and allows smoother gear engagement in low temperatures.

• 75W cold-rating improves pumpability at low temperatures
• Maintains protective film in subfreezing conditions
• Reduces gear noise and improves shift feel during cold operation

How does this oil resist breakdown and deposits at high heat?

Amsoil engineered this synthetic formulation to withstand thermal and oxidative stress, minimizing acid formation and carbon/varnish buildup that shorten lubricant life. The result is cleaner gear surfaces and longer intervals between service when used within manufacturer guidelines.

• High thermal stability prevents rapid oxidation at elevated temperatures
• Deposit-control additives limit varnish and sludge formation
• Helps maintain sump cleanliness and performance over time

What equipment or vehicles is this oil suitable for?

While broadly compatible with many cars and trucks, Amsoil SVGPK is especially appropriate for vehicles and equipment exposed to severe duty—towing, hauling, commercial fleets and racing applications. Always cross-check your owner’s manual for recommended viscosity and service specifications.

• Ideal for heavy-duty trucks, trailers and towing vehicles
• Suitable for manual transmissions and differentials requiring 75W-90 EP oil
• Used in racing and commercial equipment where heat and load are common

Who is this for? Professional technicians, fleet managers and performance-minded vehicle owners who push drivetrains hard will benefit most from Amsoil SVGPK 75W-90. If your vehicle faces frequent towing, heavy payloads, high-speed or prolonged operation—and you want a synthetic EP oil that resists breakdown, reduces operating temperatures and protects gears across extreme hot and cold conditions—this formulation is designed for those demands. Always confirm compatibility with your equipment’s manufacturer's requirements before use.