My machine recently started leaking major oil....sometimes. I got a leak cause of a rusting out oil pan, I got a need for a valve cover gasket. I get that, and usually lose 3-4 ounces a day. No biggy. I also have a lot of white smoke that comes from the blow by area, combined with occasional hard starts. Last week i went 600 miles, wake -up the next morning...barely a drop. Drive 200 miles and the whole underbelly has oil dripping and i need about a quart of oil every 200 miles or so...for the next 2k,oil all over the place. Sitting overnight drop maybe 7-8 ounces the next few days. This amount can't be from the oil pan and seems like alot from the gasket ( or could it be?) Today 150 miles around the hood. no big oil usage. Any thoughts???
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Bump.......

 

Since no one else answered, I guess the best I could say is that if it were mine I'd degrease the thing so I could nail down where all the oil is going...

It might also be a good idea to make sure the turbo isn't dumping oil...

 

Clean and perhaps some UV dye to locate source. If the draft tube is source, might consider the vacaum pump has a leak and is dumping significant vomume of air into crankcase and blowing oil out tube.

 

thanks doxer12216. ok what is a vacuum pump. My current bill is up to $6,000 on this chump machine. Reckon a vacuum pump is 5-7 hundred?

 

3rd gens don't have an engine driven vacuum pump.

 

3rd gens don't have a vacuum pump unless you have an exhaust brake. You could put a catch can under the crankcase vent tube to see how much that thin g is letting out.

 

I'd be checking for diesel fuel in oil.

 

No diesel fuel ever in the oil. I should of mentioned that it was under tow while leaking all this oil. Someone mentioned rear seal, but that looks like I would havetrans issues and i don't. No oil in anti freeze either.