Manual transmission oil: the manual transmission oil is usually used as the gear oil, only to lubricate it. The American petroleum institute has divided the vehicle gear oil into the gl-1, gl-2, gl-3, gl-4, gl-5, gl-6 classes. Among them, the heavy - heavy GL- 1, gl-2, gl-3 have been eliminated in the market, and the current use of family cars is generally gl-4, gl-5 (GL -6 is used by passenger cars). In terms of product features, the most intuitive is manual transmission oil is bigger than the viscosity of the automatic transmission fluid, the replacement cycle shorter than automatic transmission oil are also generally, most of the family car in the 4-60000 - km to replace manual transmission oil.
Dynamic oil gearbox: automatic transmission oil is special, it has two functions, except with planetary gears lubrication, cooling, what is more important as transmission power, so it's not as "thick" as manual transmission oil viscosity. And its main function is to have hydraulic transmission, so the liquidity is very good, the anti-bubble capability is also more stringent than the manual transmission oil.
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