2017 Cummins def fluid

[blownmirage]

What is the best thing to do with Cummins for def, egr, exhaust, just got one and heard that def fluid is definitely not a good thing for engine, who makes the best kit for EGR, def, and exhaust kits?
truck is for off highway use only, lol
thanks in advance

 

[Gelcoater]

I have a pre def truck so I have no clue.
I guess I don’t know how it all works?
It actually goes into the engine?
Def Know Not.

 

[hallett21]

I’ve got 190k ish miles with no issues. You do need to let the tank get low before you fill it so that the truck knows it’s using it.

But otherwise I think any out of CA diesel mechanic can help you out lol.

 

[Bowtiepower00]

I’ve had 2 4th gens without issue (currently drive a 17) they are typically about as reliable as an emission era Diesel can be. And they aren’t picky on DEF, run whatever kind you want.

They aren’t like the 07.5-12 trucks, a delete doesn’t make a night and day difference in power or reliability.

 

[lbhsbz]

Are you gonna use it for its intended purpose or are you gonna use to do things a 1/2 ton gasser could do? If the later, sell it and buy a gasser.

 

[DWC]

I’ve got 190k ish miles with no issues. You do need to let the tank get low before you fill it so that the truck knows it’s using it.

But otherwise I think any out of CA diesel mechanic can help you out lol.

Agree 100%. I wait for the warning and super-warning before I refill the Def.

 

[Mcob25rg]

I’ve got a ’22 6.7ISB, I use BluDef Platinum because I’m so afraid to have a problem - just my paranoia, and I fill when it gets to 1/2.

 

[Nanu/Nanu]

Ive heard raceme is a good platform and has a solid reputation. I to have a 2017 Cummins for off road intended purposes too

 

[QC22]

It's important to understand that DEF is not burned in the engine. It is only injected into the exhaust, so it can't "hurt" the motor itself.

 

[hallett21]

Agree 100%. I wait for the warning and super-warning before I refill the Def.

Are you really even living until you drive halfway across the desert with the “if you shut it off it’ll die” light on?

 

[Ace in the Hole]

I buy it at Costco...basic blue DEF. No issues.

 

[DarkJuJu]

buy the cheapest boxed cat piss you can find, I don't trust the def pumps at gas stations, I have seen a couple of friends have pump problems after using them.

 

[n2otoofast4u]

Drive it until you’re limited in miles, then buy the cheapest shit you can get. Or delete it and move along.