Fuel filter change

18CrewDually

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I'd like to tag onto this one....I am going to change my oil, oil filter, and fuel filter this week. What's a preferred oil, how many quarts, and then also preferred filters? Thanks for any assistance. (6.7 diesel)
It's a Cummins in a pickup, they're all 12 quarts or 3 gallons.
Personally I switched to Amsoil 5w40 because it was easy to get and is known as good oil.
Oil Filter is Mopar from Walmart. Fuel filter has to be Mopar from your cheapest source, they're not cheap but I've seen tear down tests of the cheap amazon chinese filters and they're not good.
 

WY-Dave

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I'd like to tag onto this one....I am going to change my oil, oil filter, and fuel filter this week. What's a preferred oil, how many quarts, and then also preferred filters? Thanks for any assistance. (6.7 diesel)

Fuel system

Yours is a lil different than 4th gen, you're lucky that the rear is a cartridge system vs. the oil filter housing like ours.

The front, put on a longer drain hose that will reach a container on the ground. Open the drain "plug" and a small amount will drain out. Then crack the top and the vacuum will release and the canister will drain the majority.

For the 5th gens, the rear should be about the same. The 4th gens are a total PITA! The drain, crack and drain theory is the same, but trying to get something on that filter housing is the bear.

I use Fleetgard(Cummins) fuel filters vs. Mopar. I save about $60 on the filters themselves. I get them from one or the other of 2 Semi shops.
Front fuel filter "cartridge" MOPAR-68157291 Fleetgard-FS5300 (5th gen might have both with the same cartridge)
(4th gen)Rear Mopar-68197867 Fleetgard-FS20089
 

06 Dodge

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I'd like to tag onto this one....I am going to change my oil, oil filter, and fuel filter this week. What's a preferred oil, how many quarts, and then also preferred filters? Thanks for any assistance. (6.7 diesel)
For oil filters my first choice is Donaldson DBL 7349, Fleetguard LF16035 and my last choice for oil is Mopar LF5083285AA one of the better places to buy air & fuel filters is Genos garage https://www.genosgarage.com/, do not use aftermarket fuel filter as they are c rap they do not use the 3 micron nanonet filter media to keep your HPCR pump from going to he ll and not void your warranty....
 

crash68

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What's a preferred oil, how many quarts, and then also preferred filters?
Cummins recommends the Valvoline Premium Blue and for your '22 it comes in 5W-40 which can be ran year round even in below 0°F temps. If I remember correctly Ram recommends T6
You can't go wrong with any of the big name diesel oils, Rotella T6, Amsoil, or Mobil Delvac either. With the supply chain issues nowadays, watch for what's available and pick up 3 gallons even if your next oil change is months away.
 

Fuel35 67

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Thought the 5th Gens were using 10w-30?
 

crash68

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Thought the 5th Gens were using 10w-30?
The owner's manual specs 10W-30 but to switch to a full synthetic 5W-40 when the weather drops below 0°F. The previous generation Cummins also stated to use synthetic 5W-40 when the outside temperature drops below 0°F. I've read quite a few owners just running the full synthetic 5W-40 year round. Also read people living in warm climates and hot shot driver's still running 15W-40 in the latest gen Cummins.
 

06 Dodge

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Owners have been using 5w40 full synthetic year round in the 6.7 since 2007, if you use 5w40 make sure is not semi synthetic or synthetic blend... My self I would not recommend using 15w40 in the newer 6.7 with hydraulic lifters even though I have read of a few who do...
 

Fuel35 67

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I run 5w-40 Valvoline year round in Commiefornia. Thinking of running 15w-40 during the summer or hot months than switch back for the colder months.
 
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BossHogg

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The other thing that bugs the crap out of me is that you always get a shower of diesel when the filter is removed.
I've tried removing the sensor after draining and got the shower when the sensor came off. I tried draining and removing the filter with the drain still on and still got the diesel shower.
Anybody figure out a better way because I'm not paying the dealer $400+ to do it.
I think and this comes after several rear fuel filter changes, the diesel shower does not come from the filter but from residual pressure in the fuel system. When the filter canister is loosened, it exposes the ball-lock in the filter housing allowing fuel to shower down until the filter is threaded far enough out to allow the ball to seat.

Yep, the gallon zip-lock is likely the best option.
 

vjjack04

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Hey guys, all good info. I found on my '22 it was easy to pull the air tube that comes from the filter box area. Was able to get in there to the filter, easier.
 
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