Service DEF system see dealer warning message

[Glad_he_ate]

I pulled mine and cleared it it was p208b
It’s been out sense

Add me to the list. My first winter with the JT and this just popped on today. Had it warming up for about 10 minutes, short 2 mile drive, left it running when I ran into the store and the message was there when I got back. When I got home I had it sitting for a few minutes running and the message cleared from the center but the CEL was still on. Shutting down and restarting the CEL was still on but no message. I will have to check for other codes.

Sponsored

 

[DrFalken]

Thats strange to me, Unless you are all highway 55+ and were tippity topped off by the dealer, I would think you need DEF by now, Whats the guage say?

It was almost full when I picked it up, and I am opposite, mostly short around town trips. I'm still at maybe 30%.

 

[22EcoDs]

It was almost full when I picked it up, and I am opposite, mostly short around town trips. I'm still at maybe 30%.

Interesting, Maybe I am missing something and one of the more seasoned Oil Burners can chime in but I thought people were burning DEF faster than this especially for shorter trips.

 

[ChimeraJT]

Interesting, Maybe I am missing something and one of the more seasoned Oil Burners can chime in but I thought people were burning DEF faster than this especially for shorter trips.

I've had my JTRD since late August and it has about 4000 miles on it. I have had to fill up with two (2.5 gal) jugs of DEF (most of my miles are highway). I don't know how you could make 6000 miles without filling up at least once.

 

[Challenger85]

I didn’t even know this was a thing lol, how insanely annoying would this be. Another reason I’m glad I didn’t get the diesel.

 

[DrFalken]

Interesting, Maybe I am missing something and one of the more seasoned Oil Burners can chime in but I thought people were burning DEF faster than this especially for shorter trips.

Well I got it at 3700, so I'm only 2400 miles on a full def fill. Not sure if it makes a difference but I do add everyday diesel additive at every fill. My obd scanner came in today so I will see if I can get any more details.

 

[22EcoDs]

I didn’t even know this was a thing lol, how insanely annoying would this be. Another reason I’m glad I didn’t get the diesel.

Didn't know diesels use def ?

 

[Challenger85]

Didn't know diesels use def ?

Nope lol. I’ve seen it before, didn’t know what it was, never owned a diesel.

 

[Gladman]

When I picked up my Jeep last January it was full of DEF. I had about 5k km on it when it went down for 19 weeks waiting for a solution to a front axle issue. No clue as to what the level was at that time. When that was resolved, I picked it up from the dealer full of DEF. Now I have 8500 km on the Jeep and it has about 60% DEF remaining. So I figure at this rate I should have another 3500 km remaining before needing DEF, or, I will have 7000 km on a tank of DEF, or close to 5000 miles. This is slut math so don’t take it to heart.

 

[SargeDiesel]

Well I got it at 3700, so I'm only 2400 miles on a full def fill. Not sure if it makes a difference but I do add everyday diesel additive at every fill. My obd scanner came in today so I will see if I can get any more details.

why do you add or feel the need to add an additive to the fuel ?

 

[Dakota Kid]

why do you add or feel the need to add an additive to the fuel ?

I too add an additive every tank of fuel.

There’s reasons to with the new “dry” fuel that the EPA ushered in, and even though I live in a cold climate, pour Point suppressant is far down the list.

1. Strong lubricity (sp?) package to counter-act the current dry fuel. Nobody likes a “knocking” engine!

2. Cetane Boost -like octane boost for gas

3. Demulsifiers - old formulas of diesel treatments used to try break water in the fuel down, which is ass backwards as it makes it harder for the filters to catch the water…and water doesn’t burn. Unless you’rea huge “rolling coal” can, you want your treatment to make the water droplets adhere to each other into bigger droppers, thus making it easier for your filter to do its job…and give your engine cleaner fuel, for higher MPG and less internal fouling.

4. Cleaners for injector system

5. Pour Point suppressant for colder times of the year anti-gel if you’d like.

I use Certified Labs Diesel Mate Year round, and they have an Arctic version of one really needs it, literally for use in Arctic climates as well.

https://www.diesel-mate.com/additive-package-and-specification-data.html

Having worked in oil/gas/lubricant industry, I can tell you that no matter what the poster at your fuel station tells you, you can do way better for your rig than what you’re about to pump in for pennies a gallon on your own.

The guys that created Diesel Mate Co-wrote the book for Diesel Refining for engineering students world -wide 20 years ago, saw the specs the EPA were cooking up, and started making addictive 2 years in advance knowing the engines were not going to be able to run properly on it…. Even with lovely work arounds like DEF, etc. And old diesels on “new” fuel, forget about it…. Absolutely wrecks engines from the inside out without additives.

Your $50k+ baby is definitely worth the additive?

 

[SargeDiesel]

I too add an additive every tank of fuel.

There’s reasons to with the new “dry” fuel that the EPA ushered in, and even though I live in a cold climate, pour Point suppressant is far down the list.

1. Strong lubricity (sp?) package to counter-act the current dry fuel. Nobody likes a “knocking” engine!

2. Cetane Boost -like octane boost for gas

3. Demulsifiers - old formulas of diesel treatments used to try break water in the fuel down, which is ass backwards as it makes it harder for the filters to catch the water…and water doesn’t burn. Unless you’rea huge “rolling coal” can, you want your treatment to make the water droplets adhere to each other into bigger droppers, thus making it easier for your filter to do its job…and give your engine cleaner fuel, for higher MPG and less internal fouling.

4. Cleaners for injector system

5. Pour Point suppressant for colder times of the year anti-gel if you’d like.

I use Certified Labs Diesel Mate Year round, and they have an Arctic version of one really needs it, literally for use in Arctic climates as well.

https://www.diesel-mate.com/additive-package-and-specification-data.html

Having worked in oil/gas/lubricant industry, I can tell you that no matter what the poster at your fuel station tells you, you can do way better for your rig than what you’re about to pump in for pennies a gallon on your own.

The guys that created Diesel Mate Co-wrote the book for Diesel Refining for engineering students world -wide 20 years ago, saw the specs the EPA were cooking up, and started making addictive 2 years in advance knowing the engines were not going to be able to run properly on it…. Even with lovely work arounds like DEF, etc. And old diesels on “new” fuel, forget about it…. Absolutely wrecks engines from the inside out without additives.

Your $50k+ baby is definitely worth the additive?

And this is "Diesel Mate" ? Is this something your local Wal-Mart, Advanced, Oriellys , NAPA would sell.... I can't seem to find it for sale anywhere, I read its not for sale to the public.... I dont know of any Diesel type shops around my area.... maybe I might need to do some research. Whats the cost ? I did however find the Amsoil All-in-One version that seems to do the same thing... @ around $12./16oz, I've used Amsoil products before and have found them to be of very high quality (thoughts ?) ...... and Thank you for the detailed explanation... it's definitely some food for thought... especially since I am still running on "dealer" duel from delivery.... lol (a.k.a... Diesel Virgin)

 

[Dakota Kid]

And this is "Diesel Mate" ? Is this something your local Wal-Mart, Advanced, Oriellys , NAPA would sell.... I can't seem to find it for sale anywhere, I read its not for sale to the public.... I dont know of any Diesel type shops around my area.... maybe I might need to do some research. Whats the cost ? I did however find the Amsoil All-in-One version that seems to do the same thing... @ around $12./16oz, I've used Amsoil products before and have found them to be of very high quality (thoughts ?) ...... and Thank you for the detailed explanation... it's definitely some food for thought... especially since I am still running on "dealer" duel from delivery.... lol (a.k.a... Diesel Virgin)

Your best bet is to contact Certified Labs through their website contact us for a local rep.

They typically only sell direct to business/farms/etc. but usually have someone covering your local area ( last I knew they only have 2 countries in the world they won’t ship to—-N Korea and Iran). If you don’t happen to be a small business owner, etc. Look to set up account through work and just bill to your card.

You won’t /shouldn’t see this at retailer as it’s against their corporate policy to retail product.

For the record, once you are set up to get their product, their lubricants like engine oil/transmission fluids/gear oils and additive packages are jaw dropping. Price not for faint of heart, but designed to be punished and take it like a champ.

They test in cement trucks/garbage trucks/mine trucks…. Rock crawling Jeeps or high RPM for extended period Mojave desert runs not a problem?.

 

[Dakota Kid]

And this is "Diesel Mate" ? Is this something your local Wal-Mart, Advanced, Oriellys , NAPA would sell.... I can't seem to find it for sale anywhere, I read its not for sale to the public.... I dont know of any Diesel type shops around my area.... maybe I might need to do some research. Whats the cost ? I did however find the Amsoil All-in-One version that seems to do the same thing... @ around $12./16oz, I've used Amsoil products before and have found them to be of very high quality (thoughts ?) ...... and Thank you for the detailed explanation... it's definitely some food for thought... especially since I am still running on "dealer" duel from delivery.... lol (a.k.a... Diesel Virgin)

Sarge,

Forgot to address Amsoil portion. As far as I know they typically make decent product as well. Not as familiar with them as I’ve never used them, but I believe they had a “Royal Purple” engine oil line or something like that which was high quality (much like Certified Labs oils you should have used oil analysis testing instead of just oil change at “x” miles as the life span is way longer than conventional everyday oil).

I’m not sure about their diesel treatment, but look to the additive package for items not just anti-gel. Also double check it’s not “Just” additives and NO anti-gel…that would suck if caught unawares?.

The other thing for me personally, is I know the Diesel Mate doesn’t void any manufacturer’s warranties.

 

[DrFalken]

I too add an additive every tank of fuel.

There’s reasons to with the new “dry” fuel that the EPA ushered in, and even though I live in a cold climate, pour Point suppressant is far down the list.

1. Strong lubricity (sp?) package to counter-act the current dry fuel. Nobody likes a “knocking” engine!

2. Cetane Boost -like octane boost for gas

3. Demulsifiers - old formulas of diesel treatments used to try break water in the fuel down, which is ass backwards as it makes it harder for the filters to catch the water…and water doesn’t burn. Unless you’rea huge “rolling coal” can, you want your treatment to make the water droplets adhere to each other into bigger droppers, thus making it easier for your filter to do its job…and give your engine cleaner fuel, for higher MPG and less internal fouling.

4. Cleaners for injector system

5. Pour Point suppressant for colder times of the year anti-gel if you’d like.

I use Certified Labs Diesel Mate Year round, and they have an Arctic version of one really needs it, literally for use in Arctic climates as well.

https://www.diesel-mate.com/additive-package-and-specification-data.html

Having worked in oil/gas/lubricant industry, I can tell you that no matter what the poster at your fuel station tells you, you can do way better for your rig than what you’re about to pump in for pennies a gallon on your own.

The guys that created Diesel Mate Co-wrote the book for Diesel Refining for engineering students world -wide 20 years ago, saw the specs the EPA were cooking up, and started making addictive 2 years in advance knowing the engines were not going to be able to run properly on it…. Even with lovely work arounds like DEF, etc. And old diesels on “new” fuel, forget about it…. Absolutely wrecks engines from the inside out without additives.

Your $50k+ baby is definitely worth the additive?

Much better articulated than I could have put it.

But yeah, from my limited research on the forums it seemed like the right thing to do. I will have to look into the Diesel Mate though.

Sponsored