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Are Engine Oil and Transmission Fluid the Same?

1 Answers

SanRobert

07/29/25 5:16pm

Engine oil and transmission fluid are not the same. Engine oil is the lubricant for the engine system, possessing properties such as oxidation resistance, anti-wear, and anti-corrosion. Transmission fluid, on the other hand, is primarily used to keep the gear system clean, ensuring the transmission operates properly and extending the lifespan of the transmission components. Below is a detailed explanation of their respective functions: 1. The main function of transmission fluid is to keep the vehicle's gear system clean. It lubricates and cools the gear system. During driving, the gears operate at high speeds, generating heat through friction. Transmission fluid is then needed to lubricate and reduce temperature, ensuring the vehicle operates normally. 2. The main function of engine oil is to lubricate the engine system, providing lubrication, cooling, sealing to prevent leaks, rust and corrosion prevention, as well as shock absorption. It can be said that the condition of the engine oil directly affects the performance and lifespan of the engine.

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