I have a 1992 Toyota Truck 2WD 5 speed manual with a 6 cylinder engine.
Last night I noticed a fairly large patch of oil beneath the truck on the driver's side towards the front. All my fluid levels look fine.
A bit of background
The engine was rebuilt in November 2001 (new timing chain as well). A couple of weeks ago I had to replace the radiator because the top tank was shot and the core was plugged up, and was causing overheating problems. The overheating problem has gone away and the vehicle is running perfectly. I did top up the oil a couple of weeks ago.
Any ideas on what this might be?