gm 8.1 engine
I have 2006 fleetwood flair with 6000 mi need to add oil about every 900mi . I see no leak on the ground or gray or black smoke. Wayne
Forum Discussion
Have you pulled and examined ALL eight spark plugs? This will tell you if it is being burned or not. If it is being burned, the next test is a compression test to determine where the problem is.
If the spark plugs turn up clean, then you can start looking for leaks, which will always happen in places that are next to impossible to see, like a rear manifold or valve cover gasket.
Also, you need to make absolutely positive that you are putting in the correct amount of oil, per the owner's manual, NOT the dipstick. Some dip sticks are wrong and if you put in too much oil, it may quickly be forced out of the crankcase.
If the spark plugs turn up clean, then you can start looking for leaks, which will always happen in places that are next to impossible to see, like a rear manifold or valve cover gasket.
Also, you need to make absolutely positive that you are putting in the correct amount of oil, per the owner's manual, NOT the dipstick. Some dip sticks are wrong and if you put in too much oil, it may quickly be forced out of the crankcase.
