Audi 80 Quiz
Engines

Oil Temperature

In this manual: Engines
Technical Description — 39Engines — 41Exhaust System — 13Cooling System — 28Fuel tank and fuel pump — 12Air Filter and Intake Ducts — 13Mono-Motronic Injection System — 18Digifant Injection System — 19KE-III-Jetronic Injection System — 35MPI and MPFI Injection Systems — 32Clutch — 11Transmission and Driveline — 21Suspension and Steering — 33Brake System — 41Anti-lock brake system — 8Wheels and Tires — 13Body Electrical System — 35Ignition System — 24Lighting — 14Signaling Devices — 7Instruments and Auxiliary Equipment — 54Heating and Ventilation — 7Body Components — 18Troubleshooting — 6Specifications — 13
~1min read

Oil temperature is very important for reliable engine operation. However, this information is available to the Audi driver only through optional additional gauges. For comparison, the engine oil temperature at the oil filter flange or in the oil pump is of interest; the oil is coldest there. On the piston rings, on the other hand, temperatures of up to 300°C can prevail.


If your vehicle is equipped with an oil temperature gauge: Audi specifies 145°C in the oil pan as the maximum permissible temperature. This applies when a high-quality engine oil meeting the specified requirements is used.


However, oil temperature that is too low is also harmful to the engine. In this case the oil has not yet reached its full lubricating capacity. Therefore, after a cold start, do not run the engine above 3500 rpm if possible until the oil temperature has risen to approximately 60°C. Engine oil takes roughly twice as long as the coolant to reach its operating temperature.

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A quick Audi 80 quiz: every answer comes with an explanation and a link to the manual page.