I found the fuel filter replacement in the DTR WiKi. What do you lube the o-ring with? I tried doing a search for fuel filter and I keep getting a blank page and when I go back a page it says I have to wait before I do another search.

 

I just use a little of the fuel that I've captured from draining the filter housing.

Jim

 

Or clean motor oil.

 

Oil is good, Diesel not so good. The ULSD seems to lack the lubricity and can cause the O-ring to pinch/nick. I use a thin layer of Dow O-ring lubricant and have never had a problem with any application. BTW, not good for oxygen O-rings (compressed air OK), makes loud noises, launches O2 bottles without clearance, irritates co-workers and may spoil your employment record

 

I use silicone grease.

MikeyB

 

I've been going with the diesel fuel for over 600k and 2 trucks with no probs what so ever. Its hard to teach an old dog new tricks: cheers:

Jim

 

I also forgot to ask, what is the dia. of the tubing to drain the fuel?

 

At least with the Fleetguards, that's why they changed the o-ring, which is now yellow to indicate the difference. Been using diesel to lube the o-ring for years now and not one leak or hiccup.

 

Baldwin filter and I just some diesel also to lube the O ring, never had a leak yet.

 

Another diesel fuel for lubricant user here, 115K miles and 11 filter changes with no issues.

 

what filter do you recommend adn where to buy...thanks

 

I use the balwin think its PF7977 could be PH7977, I get it from truck shop Peterbuilt, they service cummins motors, about $12 bucks a pop, I always have 2 or 3 under my back seat.

 

The o-rings are designed for diesel.. If they couldn't work with diesel they wouldn't seal now would they.

 

I use Petroleum Jelly. AKA Vaseline...

 

Thanks guys. I decided to go have someone else do it. Got my local lube place to do it for only $25 plus tax! I bought the filter from NAPA for about $22. If I had bought the filter from them and had them put it in they were going to charge me $130!!!! That's almost a 400% mark-up!!! Oink!!!!