Engine Performance problem
1994 Ford Explorer 6 cyl Four Wheel Drive Automatic
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I did an oil change about a month because my oil level was almost twice what it should be. It ran good and then started running ruff. I checked my oil and it was up about 3-4 liters. There's nothing like anti freeze or tranny fluid or water on the dipstick. It's clean and just oil.

I am absolutely baffled by this.

you might want to remove the valve covers and clear the returns out. Look along the outer edge of the heads, you will find them, use a pice of wire coathanger. Then check and drain excess oil, it can kill the engine as fast as no oil!

Your oil crankcase capacity is 5qts ( 4.75L ) with the oil filter anything over you should drain it. Did you just bought this vehicle recently-could be the wrong oil dipstick

But what will cause the oil level to rise? I have never had to add oil, except when changing which is done every 5K

If there's nothing leaking in, how does the level rise?

The only way the oil level will rise if its overfill-unless the oil return galleries are clogged up and the oil is not draining back down-and giving you a false reading that you need to put more.

The oil level has always been right where it should be. I have not had to add oil between changes. I realize it could be fuel from maybe a faulty injector, but it doesn't smell of fuel...it looks very clean on the dipstick.

Look around the engine compartment might have an engine oil feeder. Something like the toyota previa van that feed oil when it senses the level low-

But if there is only 4-5 liters of oil in there, how can the level keep rising and end up with more then you started with?

Sir-if you don't have an engine oil feeder and its not coolant and tranny fluid if it has a vacuum modulator that's leaking its overfilled-Best way to resolve this is warm up the vehicle thoroughly then drain the oil wait for an hr. Then put in 4qts remember the oil filter has oil. Then check the level again. This is the best I can do-cannot think of anything that might be raising the oil level-Like you said its not fuel-

Do this-get a foil put some oil on it from the dipstick and heat the foil if it starts crackling it has water on it-then again if it has water the oil will look like milkshake

Thank you very much for all you input. I will try your suggestions.

Thanks again.

Ron