I know what the owners manuel says.This is my first cummins diesel.I am thinking about changing my filter every 5000 to 6000 miles.Thanks.coobie

 

I change the factory one out with first oil change. Then every 15K miles.

 

Every other oil change.

 

5,000 miles to 6,000 miles for a tire rotation and the oil change using a MOPAR Filter and Rotella-T 15W40 oil and a new fuel filter every 10,000 miles. My oil was so clean at the last oil change that I may up the interval to 7,500 miles or so.
Greg

 

5K on oil change, 10K fuel filter and use the Fleetguard filters. Seems like I've typed this before maybe the TDR. O' Yeah don't forget to keep a spare fuel filter for that unaspected bad tank of fuel you hope you never get.

 

I am paranoid about clean fuel with the new HPCR system. I know that it is probably overkill, but I change mine at every oil change.

 

Just out of curiosity, does a filter clean better as it gets dirty?

I know fuel flow is decreased as it gets dirtier, but it seems to me that it will continue to stop any crud from entering the engine. As long as there is no decrease in power, why change it.

I change mine at 15k. Always keep a spare in the truck.

 

I change my oil, and BOTH filters at 10,000 miles...rotelaT. Oil looks clean as NEW

 

I change mine every 15K with a Fleetguard filter.

 

That is correct. The dirtiest fuel your system will see is with a new filter.

 

I change mine every 10k.

 

Every 15K for me too. I did the same on my last CTD and never had a problem.

 

every 10k here.

 

10k miles or 1 year, whichever comes first.

MikeyB