Engine/Transmission (1998.5 - 2002) Excessive oil out vent??

[KBalzuweit]

When driving without a trailer the underside of my truck stays clean. Hook a trailer and pull hard and its coated with oil film. The part I do not get, I run about 8000 miles between oil changes and I am only adding about a quart maybe a quart and a half. I run 50-50 empty and towing. Any ideas?? Truck has a 150k, oil analysis just came back a+++ from blackstone, air filter clean, oil puke bottle clean, I am confused any help would be great. TIA Karl

 

[JJ Jackson]

Could be your power steering pump. Not the pump itself but the seal between the motor and the pump where engine oil can leak. That sounds like a lot of oil for a Cummins to go through in 8000 miles.

 

[rkressg]

Do a search for "Vacuum Pump" + "Oil leak"



Check out these:

http://www.tdr1.com/forums/showthread.php?t=117483



http://www.tdr1.com/forums/showthread.php?t=115442



Hope this helps,

-Rich