Re: I need help identifying a plate either on the engine or trans.

Posted by TxGoat On 2024/6/3 6:46:24

I'd put 20W50 oil in an older used engine this time of year. 10W30 is usually a good choice in winter. Be sure that the engine is not over-filled with oil. Be sure that the oil filler cap and any other crank case ventilation devices are clean and properly serviced. Be sure that the oil filter assembly is not leaking. Oil from leaks at valve covers and other areas will often cause oil to accumulate and drip from the flywheel housing area, which can look a lot like a leaking crankshaft or transmission seal.

There is usually a special procedure for checking the automatic transmission fluid. I would find out what the procedure is for your specific car and follow it EXACTLY. Automatic transmissions can be very sensitive to fluid level.

If you do have a leak after making the checks above, wipe everything clean and drive the car a dozen miles or so, then get under it and see if you can tell what fluid is leaking and where it is leaking. Sometimes, a leaking seal will improve if the car is driven for 20 miles or so several times at moderate speeds over a period of two weeks or so.