Gas in the oil

James Goin

Asked by Aug 08, 2016 at 09:39 PM about the 1989 Ford F-150 S Standard Cab LB

Question type: General

I am looking at a 1989 f150 with a 4.9 liter in line 6
fuel injected, it was ran out of gas and they tried to
pull start it , it has gas in the oil. What are my

1 Answer

Bob Beaman

Gas in the oil is usually caused by a leaky fuel injector. This fuel will wash the oil off of the cylinder wall and in severe cases will score the piston and cylinder wall. Buyer beware.

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