Low Sulfur Fuel

[AlaskaGoldPanner]

I have a '08 2500 w/6.7. Where I live in Alaska I can't always get the Low Sulfur fuel.
Can I run the older higher sulfur fuel or will it damage the engine?

[Tbird100636]

I have a '08 2500 w/6.7. Where I live in Alaska I can't always get the Low Sulfur fuel.
Can I run the older higher sulfur fuel or will it damage the engine?
The correct fuel is Ultra Low Sulfur Diesel, not Low Sulfur Diesel or High Sulfur Diesel.

From Chrysler:

Use good quality diesel fuel from a reputable supplier in your vehicle. Federal law requires that you must fuel this vehicle with Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sulfur Highway Diesel fuel (500 ppm Sulfur maximum) to avoid damage to the emissions control system. For most year-round service, No. 2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide good performance. If the vehicle is exposed to extreme cold (below 20°F or -7°C), or is required to operate at colder-than-normal conditions for prolonged periods, use climatized No. 2 diesel fuel or dilute the No. 2 diesel fuel with 50% No. 1 diesel fuel. This will provide better protection from fuel gelling or wax-plugging of the fuel filters.
This vehicle is fully compatible with biodiesel blends up to 5% biodiesel meeting ASTM specification D-975.

With all the trouble with the DPF and EGR systems pluging up I wouldn't recommend using anything but Ultra Low Sulfur Diesel.

[AlaskaGoldPanner]

I can't get #2 in the winter. It gets -50 and #2 or a #2 blend will gel up. The only fuel available is #1.
On the other hand, I don't do any short runs or stop and go. (The closest traffic light is 200 miles away). The closest town is 75 miles, so 150 miles round trip. I think that would keep my emissions sensors cleaned off.
What part of the emissions system is going to give me problems? Sensors, catalitic convertor

[Tbird100636]

I can't get #2 in the winter. It gets -50 and #2 or a #2 blend will gel up. The only fuel available is #1.
On the other hand, I don't do any short runs or stop and go. (The closest traffic light is 200 miles away). The closest town is 75 miles, so 150 miles round trip. I think that would keep my emissions sensors cleaned off.
What part of the emissions system is going to give me problems? Sensors, catalitic convertor
Well if you don't have any short trips you should be fine. The DPF (Diesel Particle Filter, Big Catalytic Converter thing under the center of the truck) has a tendency to plug up with soot, rather than burn it off as designed. Short trips are a big cause of this. The EGR system and the Turbocharger have similar problems of soot pluging. Using the wrong fuel could increase the chance of this.

[AlaskaGoldPanner]

Thanks for the info. Just yesterday we ran 250 miles into Anchorage, about 5 hours.
I've never had any emission plugging problems. I put the first 5000 miles on relatively easy, with highway miles. Ever since then I've been carrying heavy loads and/or pulling heavy trailers. I guess the phrase "drive it like you stole it" is true.