New to me 2020 2500 4x4 Laramie!

[AH64ID]

Its said to be 40 but even with it having 5% bio I have my doubts, I see better fuel mileage& engine sounds better when using fuel from WA without using Cetane additive...

Motors and Cetane can be picky. My 05 hated any Cetane additive, it would knock like crazy.

I’ll use Cetane additive in my 6.7’s, but only when warranted by low rpm and low load use, or if it I want better extreme cold staring. Aside from that I’ve never noticed a difference.

Fuel refined for higher Cetane has lower BTU’s, but I don’t know if that holds true for chemically altered Cetane.

 

[06 Dodge]

Motors and Cetane can be picky. My 05 hated any Cetane additive, it would knock like crazy.

I’ll use Cetane additive in my 6.7’s, but only when warranted by low rpm and low load use, or if it I want better extreme cold staring. Aside from that I’ve never noticed a difference.

Fuel refined for higher Cetane has lower BTU’s, but I don’t know if that holds true for chemically altered Cetane.

My 06 loved Bio diesel but only when towing, empty it did not like all that much, of course when I buy fuel for the 22 on the rez in Toppenish WA its 100% #2 diesel, no bio added

 

[AH64ID]

My 06 loved Bio diesel but only when towing, empty it did not like all that much, of course when I buy fuel for the 22 on the rez in Toppenish WA its 100% #2 diesel, no bio added

My 05 liked B20, aside from when it would gel. I ran a bit of B20 when I was in Tucson for training in 2016 and the mileage was excellent empty.

I haven’t ran any bio in the 6.7’s.

 

[Ozymandias]

I'm not so sure about the lower BTU though, as I get about 1,5mpg better milage with European or Mexican Diesel.

 

[Ozymandias]

Stumbled over this interesting Intel here >

"
In North America, most states adopt ASTM D975 as their diesel fuel standard and the minimum cetane number is set at 40, with typical values in the 42-45 range. Premium diesel fuel may or may not have higher cetane number depending on the supplier. California diesel fuel has a minimum cetane of 53. Under the Texas Low Emission Diesel (TxLED) program there are 110 counties where diesel fuel must have a cetane number of 48 or greater, or else must use an approved alternative formulation or comply with the designated alternative limits.

Neste MY Renewable Diesel sold in North America has a cetane number of 75-85."

 

[AH64ID]

I'm not so sure about the lower BTU though, as I get about 1,5mpg better milage with European or Mexican Diesel.

The refinery charts are hard to argue with, unless the Cetane is chemically increased vs refined for higher.

With Cetane boost additive I have never seen any mileage gains, but that’s also not why I run Cetane boost.

 

[Cummins12V98]

I get my best towing mileage on Hwy 99 Sacramento to Bakersfield, CA running B20.

 

[StevenHodgkins]

@StevenHodgkins what warranty did you get? Most don’t cover the DPF, including the Mopar max care.

I'm not exactly sure but I did look up my contract and it covers everything except the DPF filter which sucks. It looks like they cost less then 3k which is something I can live with.

 

[Diesel85]

I'm not exactly sure but I did look up my contract and it covers everything except the DPF filter which sucks. It looks like they cost less then 3k which is something I can live with.

It doesn't cover the DOC, DPF, or the SCR units themselves as they are considered "consumable" items. Catalytic converters on gassers are the same way. Not covered under an extended warranty. It does cover the sensors, lines, and tank.

Are they "consumable"? Personally, I think as long as you feed the truck the correct fuel, those components should last to 100k and be warrantied for that length of time. My opinion though. Stellantics would disagree with me.

 

[Ozymandias]

What about the Emissions warranty?

 

[AH64ID]

It doesn't cover the DOC, DPF, or the SCR units themselves as they are considered "consumable" items. Catalytic converters on gassers are the same way. Not covered under an extended warranty. It does cover the sensors, lines, and tank.

Are they "consumable"? Personally, I think as long as you feed the truck the correct fuel, those components should last to 100k and be warrantied for that length of time. My opinion though. Stellantics would disagree with me.

The Max Care paperwork specifically states that it covers the DEF system, which should include the SCR.

 

[Diesel85]

The Max Care paperwork specifically states that it covers the DEF system, which should include the SCR.

"Should include"... doesn't specifically state it... DEF System is vague. Could you argue it? Possibly.

Form Num: NM515 Page: 5 of 12
ENGINE EMISSIONS: Air Pump; Air Supply Hose; Leak Detection Pump; Evaporative System Detector/Monitor; Vapor Canister; Air
Injection Valve; EGR Valve; EGR Cooler; Aspirator Tube; Fuel Tank Pressure Sensor; EGR Tube; Purge Solenoid; Knock Sensor;
Oxygen Sensor; Diesel Exhaust Fluid (DEF) System.
NOTE: CATALYTIC CONVERTOR AND PARTICULATE FILTER ARE NOT COVERED

https://www.chryslerfactoryplans.co...ew_Maximum_Care_Plan_Provision_06-21-2023.pdf

 

[Ozymandias]

Again, what says the Emissions warranty.

Edit: Okay, found it 7y/70k if you life in the right state.

 

[StevenHodgkins]

Instead of starting a new thread I thought I’d ask another question. How full do you typically see the particulate filter gauge get on your trucks? So far in my 5k driven I haven’t seen it get about 25% until today. It’s pushing 30 to 40 % and hasn’t started an automatic re-gen yet. What factors go into making it do the automatic re-gen?

sorry I’m super new to the after treatment 6.7 trucks. It’s still running great!

 

[AH64ID]

A soot based regen triggers around 45%.

Do you know what air filter is in the truck?

 

[StevenHodgkins]

A soot based regen triggers around 45%.

Do you know what air filter is in the truck?

no clue…what ever the dealer put in it. I’ve had it about 3 weeks now.

 

[StevenHodgkins]

no clue…what ever the dealer put in it. I’ve had it about 3 weeks now.

What should I put in it? I typically order from Genos or new to me I’ll have the dealer do it when I get the oil changed

 

[Diesel85]

What should I put in it? I typically order from Genos or new to me I’ll have the dealer do it when I get the oil changed

RAM recommends: 53034051AB

Open your air filter box and you will see a part number. Let us know what part number you see.

 

[AH64ID]

What should I put in it? I typically order from Genos or new to me I’ll have the dealer do it when I get the oil changed

Either Mopar 53034051AB or Fleetguard AF27684.

May dealers are selling/installing the 6851755AA, but its not supposed to be used for 19+ trucks and has been linked to excessive regens and even some underboost codes.

 

[StevenHodgkins]

Either Mopar 53034051AB or Fleetguard AF27684.

May dealers are selling/installing the 6851755AA, but its not supposed to be used for 19+ trucks and has been linked to excessive regens and even some underboost codes.

Crazy! I’ll check mine out when I get a break at work. Are the part numbers written on the filter?