99 Durango 5.9 part out
Like Wyoming said, great directions on the seafoam site, but I wouldn't pour it down the TB, there's a how to thread posted last week about removing and cleaning the TB. You'll end up w/ it in the kegger and eating your belly pan gasket, then you'll have real problems. Crank case should only be driven for like 30-50 miles b4 an oil change, or if you leave it in all the time you've got to follow the directions and check your oil regularly and be ready to change it at any time. Nothing wrong w/ the vacuum line.