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Gear Oil

Gear Oil: What It’s Used for and How to Choose It

Your vehicle’s engine has many parts, each with a specific job. You need to keep these parts are all maintained so it keeps going until you are ready to get something else. An important part of keeping your vehicle going is using gear oil.

Most drivers know to change engine oil at certain intervals. But there are quite a few other fluids, lubricants, and other products to top off or changed. If you are new to maintaining a vehicle, a walk through the automotive store can be overwhelming.

Why Use Gear Oil

Gear OilGear oil is a product designed specifically for transmissions, differentials, transaxles, and transfer cases. protects the parts from the heat caused by the friction of the moving gears. The various gears, axles, etc. are used all the time, and can wear down making maneuvering your vehicle difficult. If you don’t keep these parts properly oiled you risk compromising performance due to scouring, corrosion, scuffing and pitting.

The gear oil has a higher viscosity than the automotive oil. Gear oil is graded based on performance and classified as either GL-4 or GL-5. While most vehicles work well with GL-4, for high-performance vehicles use GL-5.

What to Look for When Buying Gear Oil
  • Base Oil Type – A synthetic base will have a higher resistance to oxidation and heat degradation. This means that you can go longer intervals between needing to apply it.
  • Viscosity – Considered by many to be the most important element of the oil. In most cases, your owner’s manual will tell you the best one to use. However, should you need to select one without having access to the manual, then remember that the higher the PSI value, the better the wear protection. According to K1600 Forum, AMSOIL’s 75W-140 Severe Gear is at the top of the chart for automotive applications.
  • Additives – These may be organic or inorganic compounds dissolved or suspended in the gear oil. These additives boost the properties of the gear lube. They also help the raise or lower the effectiveness corrosion inhibitors, anti-foam agents, and emulsifying agents.

To get the most from your vehicle and all its moving parts, check out your local AMSOIL dealer, The House of Syn. Whether you are looking for Severe Gear lubricant, transmission fluid, filters, or octane booster they will have what you need.

Your vehicle is an investment, and you want it to last. Take care of your car by keeping it working properly. Talk to your mechanic and have them check that all the parts are lubricated as they should. From lubricants to fuel, maintenance matters.