I have a 1995 12v standard Dodge 3500 Dually. Have had it since 135,000 miles. Truck has a ton of power but not without blow by and a big oil leak. I was told it needs rebuilt- trying to milk another 10,000 miles out of it before doing a rebuild so I have the funds to do it. If you set the oil cap on the filler tube, it flaps (like the end of a tractor exhaust) but does not blow it off. The harder it works, the more oil it uses. Around town without pulling I will use a quart every 200 miles. Pulling 8 horses in a stock trailer 100 miles it dumps around a gallon out of the blow by tube. Undercarriage of the truck is covered in oil. It has no other leaks then this one. Is there anyway to slow it down any? Could it be something other then a rebuild? Truck runs amazing, tons of torque. Has no issue pulling hills or going 75-80 mph with a load.