Aux fuel filter

[Drifty1]

I am looking for some input on adding an aux fuel filter on my Dodge. I just changed the filter Saturday in Missoula because I could feel a small change in throttle response at lower speeds. To me it was acting like the last time I had a fuel problem that lead to a $9,000 bill for changing out all the parts linked to the intercooler and DPF system. I replaced the filter just before we left on this month long trip which we have put on about 4,000 miles. So I am thinking about adding the aux filter that uses the Cat pre-filter. Has anyone installed this and if I do would you get the unit that has a water separator with it.

http://cumminscatfuelfilter.com

[NCFischers]

I just put an additional fuel filter/water separator on my Ford. I got it from Dieselsite. It was a plug and play installation, very easy. Look for the similar site for Dodge.

[TLightning]

Many boats and larger diesels have primary and secondary filters. There must be a reason.

[jcurtis934]

Drifty1, go pick up a copy of Diesel World magazine or any of the others and you will find all the resources you need to acquire a pre-filter assy. John

[1retired06]

My last 3 Fords have always had two fuel filters, one on the engine and one under the rail. I bleed the line every time I change the oil, and personally see no need for additional filters. I have never had an issue. However, more power to those who feel the need. Can not hurt.

[JandC]

quote:Originally posted by TLightning

Many boats and larger diesels have primary and secondary filters. There must be a reason.

Our 38 foot boat had twin diesels with primary/secondary fuel filters. I suspected it was because of where you had to fuel up, amount of fuel carried, and the dangers of being stranded. I carried 300 gallons and had to use additives during times when I wasn't burning through a lot of fuel. Those dark tanks half full of fuel love to grow stuff. Been caught in some sudden weather where some type of fuel related power failure could have been a disaster.

[daily double]

X2 on Diesel site filters.

[catskiner]

www.genosgarage.com

[Simpson9508]

I just added the Dieselsite filters to my Ford 6.7. Extremely easy install. It took about 15 minutes.

[washley1]

A bit off topic, but can anyone tell me where and how to find and recognize the water separator on my F350? I always forget to ask at the dealer when I go in for service, and it might behoove me to be able to drain this on my own.

[daily double]

The water separator on your 08 can be drained by going under the truck at about the driver door and looking at the inside of the frame rail. You will see the filter and a small black wheel protruding under it . Open the wheel and the water and a small amount of fuel will come out the little nozzle . Make sure you drain enough so the water is gone then close the little wheel . Presto!

[washley1]

Thanks daily double! I'll look for that tomorrow. Obviously a good thing to know!

[jlb27537]

The new Cummings fuel filter is a 5/3micron filter. It says it fits a '13 and up, but will fit all 6.7 Cummings.

On Ebay for $43 free freight. The filters you reference are a 10 micron water separator and a 2 micron final.

Your truck requires a 5 micron filter. Just buy the new '13 filter and forget it.

http://www.ebay.com/itm/131211696055...84.m1423.l2649

[farmboy]

I do not doubt your thinking you need extra filter, but I do not completely understand why. I have over 170k on my '04.5 Dodge and only use the stock filters that I buy at NAPA. We just finished a 50 day 7k+ mile trip with two fill ups in Missoula,Mt. and in several other cities in the North west. I have fueled in at least 24 different states, most more than once and have yet to have a fuel problem. I will be the first to admit that I do not change my fuel filter as often as most so I have probably only done it 5 times in 10+ years. And I still have my original filter mounted pump in service and no injector problems. Just my experience.

[daily double]

Farmboy, if you had one of these new trucks with the High pressure fuel pump, you would understand the need for an extra filter. It cost me just over $10K to find that out!

[Trailer Trash 2]

I had 117K on my 96 PSD which was a high pressure fuel delivery system as yours. ford has a very easy fuel filter system to change at least mine was, it was on top of the motor. I never had any issues with mine other than the heater inside the filter holder getting dissolved, along with that there is the drain valve to purge the system of water if any get in the filter area. I think the extra cost of the additional fuel filters is a good idea but money not well spent.

[Tom S.]

I used a 2 micron Cat filter on our 06 Silverado that was mounted before the factory filter, back at the fuel tank. It had a couple of advantages: it more than doubled the life of the factory filter, and was a whole lot cheaper: $20 vs. $70. Unfortunately, the brand of adapter I used was GM specific, but I'm sure there are similar units available for your Dodge.

[Drifty1]

As I said it cost me $9,000 because of fuel problems. With these new motors the pollution equipment doesn't like when they have fuel issues. They will soot up so fast and foul up the intercooler, throttle valve ect. On my first post there is a link to the cat filter that works on my dodge. As Tom S is saying I want a filter that I can change more often and a little easier to get to. I have had 2 knee replacements and am somewhat limited on what I can do under my truck. I understand jib's comment but my feelings are every oil change that has been made on my truck was at a dodge dealer and I hope they have enough sense to install the best filter that meets the requirements on the 6.7. I just had my filter changed in Missoula as I was noticing a little hesitation in throttle response, after changing the filter the problem went away. With only 4000 on that filter and a cost of $130 I think it was worth every penny, but if there was a Cat filter under the truck it would catch a lot more of the crap before it gets to the factory filter. I know everyone has there own ideas on fuel filtering and it is nice to hear different opinions from the forum.