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Re: 99 Isuzu NPR oil leak from draft tube
Posted to HD/Fleet Forum on 1/9/2009

Forgot to mention, if you do the seafoam give it up to 1k miles and the leak should be pretty well contained by that time. For us it seemed to be around 200 miles that it stopped leaking.

Another thing to consider is the dipstick, we have had some that it wa... Login to read more.