engine oil on spark plugs
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Senior Member
Joined: Jun 2004
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From: Florida
engine oil on spark plugs
97 V6 55k miles
I got tired of 11-12 mpg and replaced all spark plugs. The tips were clean but the other end - wire connection end- was rusting. The threads were wet with oil on 2 plugs on each side. Where is the oil leak? Valve cover, most likely?
A related question. I bought the vehicle in 2005. I am the second owner. It came with a rebuilt engine. There is a "Ford recycle" tag on the valve cover and another tag at the bottom that reads 1998. Is 98 the year of manufacturing or rebuilding? All I care about is if there is a difference between 97 and 98 engines as far as maintenance goes. For instance, should I buy spark plugs for 97 or 98? Thanks.
I got tired of 11-12 mpg and replaced all spark plugs. The tips were clean but the other end - wire connection end- was rusting. The threads were wet with oil on 2 plugs on each side. Where is the oil leak? Valve cover, most likely?
A related question. I bought the vehicle in 2005. I am the second owner. It came with a rebuilt engine. There is a "Ford recycle" tag on the valve cover and another tag at the bottom that reads 1998. Is 98 the year of manufacturing or rebuilding? All I care about is if there is a difference between 97 and 98 engines as far as maintenance goes. For instance, should I buy spark plugs for 97 or 98? Thanks.
Senior Member
Joined: Sep 2002
Posts: 2,605
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From: USA
Originally Posted by paker
97 V6 55k miles
I got tired of 11-12 mpg and replaced all spark plugs. The tips were clean but the other end - wire connection end- was rusting. The threads were wet with oil on 2 plugs on each side. Where is the oil leak? Valve cover, most likely?
A related question. I bought the vehicle in 2005. I am the second owner. It came with a rebuilt engine. There is a "Ford recycle" tag on the valve cover and another tag at the bottom that reads 1998. Is 98 the year of manufacturing or rebuilding? All I care about is if there is a difference between 97 and 98 engines as far as maintenance goes. For instance, should I buy spark plugs for 97 or 98? Thanks.
I got tired of 11-12 mpg and replaced all spark plugs. The tips were clean but the other end - wire connection end- was rusting. The threads were wet with oil on 2 plugs on each side. Where is the oil leak? Valve cover, most likely?
A related question. I bought the vehicle in 2005. I am the second owner. It came with a rebuilt engine. There is a "Ford recycle" tag on the valve cover and another tag at the bottom that reads 1998. Is 98 the year of manufacturing or rebuilding? All I care about is if there is a difference between 97 and 98 engines as far as maintenance goes. For instance, should I buy spark plugs for 97 or 98? Thanks.
Valve cover leak,probably!