Thoughts on after market fuel filters - Dodge Cummins Diesel Forum
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post #1 of 22 (permalink) Old 11-13-2019, 07:53 PM Thread Starter
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Thoughts on after market fuel filters

I always use quality Lube filters, usually fleetguard lf16035. However, I have been buying the cheaper fuel filters on amazon as the OE seem to be way over priced.
While I am at it, do you guys change both fuel filters at the same time, or do you change the water seperator every other filter change? Personally I change them together but I am not sure if I have to do that. Opinins welcome. PS.....picking up #7 Ram Friday. 2019 4500 c&c

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post #2 of 22 (permalink) Old 11-13-2019, 08:03 PM
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Personally I run the OE filters on all of my previous rigs (either Mopar or the mfg who produces them for Mopar).

For the fuel filters that’s Fleetguard and Racor on the 13-18s. I’m not sure who makes the new rear water separator for the 19’s (redesigned I believe).

With as expensive as the fuel systems are on these trucks and the track record of the CP4.2 with the other 2 big 3 mfgs, I’m not going to chance it myself to save a couple bucks once a year.

The interval for the fuel filters (both) is 12mo/15,000 miles. The oil filter is the same now for what it’s worth. (2019’s)

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post #3 of 22 (permalink) Old 11-13-2019, 08:07 PM
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Look up Bosch CP4 failures. The Bosch CP4 in the TDI is similar(single piston version) to the one in your truck and very similar to the CP4 in the Duramax and Powerstroke. These pumps failed often on the TDIs due to poor filtration and water in the fuel. Most engines with failed pumps had signs of rust in the injectors(that were often destroyed when eating metal shavings from the pump).

Personally, I'd run a long oil change interval, 30k or more. But I'd change both fuel filters often with oem filters. Use it as an opportunity to keep an eye on the CP4, it'll leave shiny metal flakes in the filter housing a few thousand miles before failure. It shouldn't be an issue on this truck though if you keep up with the filters and keep the water out.

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post #4 of 22 (permalink) Old 11-13-2019, 08:28 PM
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Quote:
Originally Posted by macmov View Post
I always use quality Lube filters, usually fleetguard lf16035. However, I have been buying the cheaper fuel filters on amazon as the OE seem to be way over priced.
While I am at it, do you guys change both fuel filters at the same time, or do you change the water seperator every other filter change? Personally I change them together but I am not sure if I have to do that. Opinins welcome. PS.....picking up #7 Ram Friday. 2019 4500 c&c
And when you have the fuel system failures, you make sure you tell them at the warranty department you save money by using the cheaper filters. See how that works out for you.

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post #5 of 22 (permalink) Old 11-13-2019, 09:06 PM
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Me personally, I use only Fleetguard or Mopar fuel filters. I change both when I do my oil change every 10k miles.

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post #6 of 22 (permalink) Old 11-13-2019, 09:30 PM
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Quote:
Originally Posted by 7492 View Post
And when you have the fuel system failures, you make sure you tell them at the warranty department you save money by using the cheaper filters. See how that works out for you.
Iím saving fuel and Maintinence receipts on this rig as a precaution..
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post #7 of 22 (permalink) Old 11-13-2019, 09:32 PM
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oem filters for this tractor. plan to change em all every 10k.
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post #8 of 22 (permalink) Old 11-13-2019, 10:00 PM
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Quote:
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Quote:
Originally Posted by 7492 View Post
And when you have the fuel system failures, you make sure you tell them at the warranty department you save money by using the cheaper filters. See how that works out for you.
I’m saving fuel and Maintinence receipts on this rig as a precaution..
Wise move. Some TDI guys go as far as keeping fuel stop receipts. The dealers will often claim they dipped the tank and found poor quality fuel. Not sure if FCA will do that or not.
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post #9 of 22 (permalink) Old 11-13-2019, 10:16 PM
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I run OEM fuel filters and fleet guard or Mopar oil filters, I replace them all at 10K for service.

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post #10 of 22 (permalink) Old 11-13-2019, 11:02 PM
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Quote:
Originally Posted by crazyrunner33 View Post
Wise move. Some TDI guys go as far as keeping fuel stop receipts. The dealers will often claim they dipped the tank and found poor quality fuel. Not sure if FCA will do that or not.
They are looking for gasoline too. If you're referring to VW TDI's. They are famous for fueling errors. My wife knows of this. At least she didn't drive it after fueling. I'd like to know why they locate Ram filters in such a sorry location? My TDI filter was also somewhat less that ideal. But the TDI was one nice toy. EPA screwed over that pretty well.

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post #11 of 22 (permalink) Old 11-14-2019, 09:43 PM
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I never understood why people put cheapo filters on a $70k vehicle. Fleetguard is the former Cummins Filtration branch. Pay the money for Fleetguard filters. 70 dollars for a quality filter is cheaper than Injectors/Pumps. Obviously they do not make a chassis filter yet, so we are stuck with the OE one for now.
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post #12 of 22 (permalink) Old 11-15-2019, 09:56 AM
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Quote:
Originally Posted by 7492 View Post
And when you have the fuel system failures, you make sure you tell them at the warranty department you save money by using the cheaper filters. See how that works out for you.
FWIW, they cannot, I say again, they cannot deny you warranty work for using aftermarket filters unless they provide OEM filters for free. The same goes for oil. Now, if you were using a fuel filter that was not rated to the OEM micron filtration spec they could. But yes, use OEM fuel filters. I use OEM, Racor, Fleetguard, Wix or Amsoil fuel/oil filters on all my vehicles.

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