I purchased a car with the intent of fixing it to sell again. It required new fuel injectors, O2 sensors, plugs, cats, computer, etc. Most problems stemmed from a buildup of oil on the exterior of the engine fouling one of the fuel injectors. I fear that this may have overheated the engine internally also, causing the formation of oil sludge or coagulate.
Is there any way to treat the oil system to remove any coagulate that might have built up in there? Short of removing and tearing apart the engine? Also, the oil pan on this car is not easily drop-able. It would require loosening the engine mounts, and raising the engine to get clearance over a support.
Note
To be clear, the engine is not overheating now, but I suspect that it might have to one degree or another in the past. This is just a cautionary step I want to take prior to selling the vehicle now that it is fixed.
