Oil consumption
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Pro
Joined: Feb 2004
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From: TX
Oil consumption
I’ve noticed my car is using about 1qt. of oil every 1000 miles. I do drive it hard, but I don’t know when I really am having a problem with consumption. The motor is built 408 low comp with about 10k on it. Any advice here would be appreciated.
Instructor
Joined: Nov 2007
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From: Houston, Texas
Does it smoke briefly at start up? If so, that's a good indication that your valve guide seals are worn/damaged, which could account for the oil consumption.
How do the spark plugs look? Are any of them black and oily looking?
How do the spark plugs look? Are any of them black and oily looking?
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From: TX
But now that you say that it does briefly smoke at start up.
I plan on pulling the plugs this week sometime to check them out also.
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From: Dyer, IN
Instructor
Joined: Nov 2007
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From: Houston, Texas
If one of the spark plugs was noticeably sooty/oily looking and the rest were very light tan, then the oil consumption problem could probably be isolated to that one cylinder. However, it sounds as if when you pulled the plugs recently, they all had a uniform appearance with no signs of oil burning?
So, with smoke visible on start up, I'm inclined to believe that oil is leaking past the valve guides. And if the engine also smokes on trailing throttle, I would say that the chances are even greater that you have a valve guide seal problem.
So, with smoke visible on start up, I'm inclined to believe that oil is leaking past the valve guides. And if the engine also smokes on trailing throttle, I would say that the chances are even greater that you have a valve guide seal problem.
Thread Starter
Pro
Joined: Feb 2004
Posts: 588
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From: TX
If one of the spark plugs was noticeably sooty/oily looking and the rest were very light tan, then the oil consumption problem could probably be isolated to that one cylinder. However, it sounds as if when you pulled the plugs recently, they all had a uniform appearance with no signs of oil burning?
So, with smoke visible on start up, I'm inclined to believe that oil is leaking past the valve guides. And if the engine also smokes on trailing throttle, I would say that the chances are even greater that you have a valve guide seal problem.
So, with smoke visible on start up, I'm inclined to believe that oil is leaking past the valve guides. And if the engine also smokes on trailing throttle, I would say that the chances are even greater that you have a valve guide seal problem.
All the plugs I pulled were white on the tips. Almost like a white powder that would rub off.
Ill get a follow to check and see if I have any trailing smoke.
