How often should I change the oil and fuel filter on my 7.3

 

I change my oil every 3-4k depending in how much heavy towing I've done and fuel filter every other oil change. Air filter every 25k

 

Oil every 5000 miles MAX , fuel filter every other oil change - 10,000 miles

 

I do my Fuel Filters every 6k, as for oil you shouldnt go over 5,000 miles without an oil analysis or bypass filtration in place. The only brand filters I use is motorcraft (raycor marine ) for the 7.3. Make sure you run a high quality oil like Dello, rotella, or devlac. Just keep the oil and filters consistent through your changes.

 

That would all depend on what type of setup you have installed and the workload you may be placing on the truck. I run a Donaldson 7405 with an oil by-pass and while reports say I can go around 20k between changes, I change mine out every 10k. Changing the fuel filter may depend on who you ask. Some say with every oil change, some say every 25k and I know some folks that change them every 50k. I change mine every other oil change.


Edit: I don't know what is wrong but I can't change the dang font to a larger size

 

looks like I'm in good company: 3000-3500 miles oil and filter, every other oil change fuel filter.

Rotella 15w-40 fully non synthetic.

 

Last year I put 7000 miles on my truck and changed the oil one time, when we returned from our Florida trip, I have 87000 miles on it now and use Mobil Delvac and Motorcraft filter. I change the fuel filter every 2 years.

 

What kind of oil are you using?

Fuel filter every 15k miles.

 

If you are using the correct oil such as Rotella T, Delo or Motorcraft etc, then you can change your oil every 7000-8000 miles with no worries. Fuel filter every 15k. Check SCA every 12k, Change auto trans fluid every 30-35k, differential fluid every 100k, brake and power steering fluid every 3 years, HPOP hoses every 10 years, serpentine belt every 100k. I've never seen a coolant hose pop on one of these trucks but I change them out every 10 years anyway.

 

What do you guys think is good time wise? I only put about 4-5k a year and have a 2 micron by pass filter. I can easily do 8k but change it out at a little over 12 mo. do to the acids sitting in it.

 

Rotella t 15-40 and baldwin oil filter

 

How often do you all change your syn rotella T?

A local mechanic one time I was getting mine done was telling me that it can easily go 8000k miles between change.

 

This is the first time use it but it's the regular 15-40

 

^ I like this guy. I'd rep ya but I'm on mobile.

 

shell rotella T6 Full synthetic with Mobil 1 extended performance filter, every 8k miles. Have done an oil analysis and it came back good. Fuel filter every 15k.