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:
1 quart used every 1000 miles is not unusual for thr 8.1 and not an indication of anything wrong.
The 8.1 does not have a PCV valve.
If you have the Workhorse chassis manual it will tell you 1 quart every 1000 mi. is normal.
I burn one quart about every 5-6000 miles with my 8.1L engine. Of course at 70,000+ miles it is well broken in. This is at highway speeds, pulling a toad, and in the Western mountains.
