12/5/2023 0 Comments Gear oil weight explainedThe American Petroleums Institute grades gear oils on overall performance, & GL-4 and GL-5 graded gear oils are the most common on the market. Using the wrong gear oil can result in poor performance or even damage to internal components, so it is important to only use the gear oil recommended by your vehicle’s manufacturer. ![]() Gear system specifications may vary from automobile to automobile. GL-1 class gear oils do not contain any EP additives and are therefore used in applications that contain parts made of yellow metals.Īlso, Read: What Is Torque Converter? | How Does a Torque Converter Work? | Parts of Torque Converter | Working Principle of Torque Converter How Do I Know Which Gear Oils to Use?Ĭheck your owner’s manuals. Typical additives include dithiocarbamate derivatives and sulfur-treated organic compounds, “sulfur-containing hydrocarbons.”ĮP additives containing phosphorus/sulfur compounds are corrosive to yellow metals such as copper and/or brass that are used in bushings and synchronizers. Most gearbox and differential lubricants contain high-pressure additives (EP) and anti-wear additives to combat the sliding action of Hypoid bevel gears. Lubricants make up about 20% of the gear oil market. Some modern automatic transmissions, integrated transmissions, and differential do not use heavy oil at all but are instead lubricated with the low-viscosity hydraulic fluid that is available under pressure in the automatic transmission. It is of high viscosity and usually contains organosulfur compounds. The Gear oil is a lubricant specially designed for transmission, transfer case, and differential in automobiles, trucks, and other machinery.
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