Is Gear Oil & Transmission Fluid The Same? Semi- Truck Maintenance
Is gear oil and transmission fluid the same? This is a very common question semi-truck and other heavy-duty vehicle operators and fleet owners have. A straightforward answer would be No because gear oil and transmission fluid target different types of transmissions or mechanical environments. Gear oil is a lubricant for manual transmission while transmission fluid is a lubricant for the automatic transmission of semi-trucks and other heavy and light-duty vehicles.
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