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
harold1946 wrote:
I should add that when I fill my crankcase, per the manufacturer's specs, it comes to just slightly(1/8") above the "add oil" mark on my dipstick. After 70,000+ miles on my engine, I usually go 5-6000 miles before I need to add a quart of oil. If I added oil up to the "full" mark on my dip stick, I would have overfilled the crankcase.
When was the last time you saw the dipstick of an 8.1 with the wrong markings? If the required 6.4 quarts are in, it is not over filled.
Sounds like your engine manufacturer has a problem with quality control.
I had noticed the dip stick was wrong when I did my first service on my 8.1L coach. There is no doubt that WH has a quality control problem on several things. That is why I have had three recalls on my coach. The facts are that IF I filled my 8.1L engine crankcase according to the "full" mark on the dip stick, I would be over filling it. Perhaps that is why several people, including the OP, are only getting 1000 miles before they add another quart. Since I do not use the dip stick as a guide as to when to add oil, perhaps this is why I can go 5-6000 miles before I have to add a quart to my engine. Since WH adds the dip stick when they build the chassis, I would say that the problem exists with them and not the GM engine. If you are happy with adding a quart of oil every 1000 miles, good for you. It seems that the OP is not, which is why he asked the question.
