Can anyone help with disappearing oil? I have an '06 GP base in the family with a non s/c 3.8 , 80,000 miles on the odometer. Driven like a baby carriage. It seems to use oil at a rate of 1 qt every 800-1000 miles.
I searched the threads and checked the normal things. No visible leaks on the driveway.I started the engine with the remote start and didn't get any blue puff of smoke from the exhaust. i checked the tailpipe, no soot or sludge. Can't seem to see anything leaking from the valve cover ( I can't see real good on the rear cover. I feel like Mr. Magoo in there.) I have no antifreeze loss. Replaced the PCV valve and checked the O ring(Just a slight bit of oil around it in the housing), and switched to High Mileage oil(5W30). I'm confused on the upper and lower intake manifold gaskets causing oil consumption. I've replaced the UIM on another GP , but that was due to coolant leaks. Local dealer is a tool, and I'd like to get some unbiased thoughts.
Could it be leaking from a valve cover and not hitting the ground? Change the LIM gaskets? I don't think it's mixing with the coolant. I dont see any sludge in there like suggested. Coolant was changed every 2 years and never gains or loses any between flushes. Yikes!!!!!