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USD 8.95
Part #: XDPD216

XDP Polar-D Winter Formula Diesel Fuel Additive XDPD216

For All Diesel Engines, 16 Oz. Bottle (Treats 125 Gallons)
Part #: XDPD216
  4 Reviews
Quantity Price
1-5 $8.95
6-11 $8.05
12+ $7.16
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  4 Reviews


After the overwhelming success and positive feedback of our XDP Diesel Power Plus year round formula fuel additive we began work on a winter blend. The result of our hard work and testing is XDP Polar-D. This powerful fuel treatment increases overall system performance in cold weather conditions. XDP Polar-D prevents waxing and gelling while enhancing lubricity quality.


Contains Lubricity Additives
Prevents Waxing & Gelling
Increases Cetane Number
Absorbs Free & Emulsified Water
Cleans Injection System
Contains No Alcohol
Exceeds B.O.C.L.E. Standards
For All Diesel Engines

XDP Polar-D is a cold weather treatment that allows the use of number two diesel fuel year round. It prevents fuel problems related to winter operations, such as gelling and freeze up. The winter problems are addressed by using wax modifiers that prevent the formation of ice crystals, thus preventing filter plugging. It contains water-converting agents preventing free or emulsified water from freezing, and therefore addresses fuel system freeze up. XDP Polar-D is enhanced with cetane to improve cold starting capacity and to restore power levels found in good number two diesel fuel.


Add prior to filling fuel tank to assure proper mixing.
Treats as follows to lower the Cold Filter Plug Point (CFPP).  This could be as high as 10ºF - 15ºF depending on fuel quality.

  • 1 oz. added to 8 Gallons lowers CFPP by at least 10ºF
  • 2 oz. added to 8 Gallons lowers CFPP by at least 20°F

5% Cetane Increase

What is Cetane?
Generally, diesel engines run well with a Cetane Number (CN) from 40 to 55. Fuels with a higher cetane number which have shorter ignition delays provide more time for the fuel combustion process to be completed. Hence, higher speed diesels operate more effectively with higher cetane number fuels. The national CN average is 45.


  • MFG. Number XDPD216
  • Manufacturer Name XDP
  • Shipping Weight 1.00 lb.
  • Shipping Length 11 in.
  • Shipping Width 8 in.
  • Shipping Height 4 in.
  • UPC 865978000014
  • Prop 65 WARNING: Cancer & Reproductive Harm -


Helps a Duramax
Jake Rygiel
Location: Boyd, WI
LLY Duramax started right up not plugged in at -22. Friend of mine has the same truck, he had it treated with Power Service (white bottle) and even had had warmers taped to the fuel filter, It started but barley. Only issue is its a little pricey. Order number 628902
Location: Detriot
soo the temp has been around -20 with a windchill of -45... no fuel bowl heater, no intake heater, everyone else is having problems with keeping their fuel from gelling.. well i run the XDP Polar D and i not once had a problem with Gelling! not in these temps! truck starts right up thanks to this additive! id recommend this to everyone! well worth it for a winter additive! truck starts up so much smoother in the cold! LOVE THE STUFF!
Great product at a great price.
Location: Michigan
Just filled up my first tank while using XDP Polar D. I must say, so far, so good! Truck runs great and starts right up! Truck is not plugged into the block heater, and last night it was in the teens. Truck started right up!! XDP Polar D must be doing its job!! Was using Diesel 911 but am definitely going to be switching my diesel treatment to the XDP stuff. The guys over at XDP definitely know what they are doing!
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Questions and Answers

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Most Popular Questions

Fuel gelling problem at 30 below zero I was recently in temperatures of 30 below zero F. with my Dodge 3500 with 5.9L Cummins. I used one ounce of XDP polar formula per 30 gallons of fuel. My fuel line froze up and I had a heck of a time getting it running. What is the amount of XDP Polar needed in 30 gallons of fuel to prevent gelling at 30 below zero?
View Staff Answer 

Diesel fuel can begin to cloud around 32ºF and gelling can begin as high as 10ºF - 15ºF (depending on fuel quality and location). Gelling of your fuel is often referred to as the CFPP (Cold Filter Plugging Point). With just 1oz of our Polar-D additive in 8 gallons of fuel you can lower the CFPP by at least 10ºF. (Add prior to filling the fuel tank to assure proper mixing)\

*Keep in mind that our fuel additive is designed to help reduce the problems associated with diesel fuels in extreme temps and extend the temperature rang in which a vehicle can operate. (Fuel quality, location, and the temperature of the fuel prior to mixing can all make a difference on the additives reaction)

Can i use this product year round?
View Staff Answer 

The XDP Polar-D Winter Formula Diesel Fuel Additive can be used year-round, but better prevents fuel problems that are related to winter operations. The XDP Diesel Power Plus Fuel Additive is better suited as a year round formula. Click Here to view the XDP Diesel Power Plus Fuel Additive

Is this safe for Ram Ecodiesel with SCR? Can this s be used with vehicles equipped with SCR. Specifically a 2014 Ram Ecodiesel
View Staff Answer 

The XDP Polar-D Winter Formula Diesel Fuel Additive XDPD216 is safe for use in ALL diesel applications including the Ram EcoDiesel with the SCR system.

What is the "shelf life" of a new bottle of XPD -D polar? On occasion I run up to MN in the winter and would like to keep in my truck. Will summer heat (Texas) decrease the efficiency of the product?
View Staff Answer 
Stored properly, an unopened bottle of our XDP Diesel Polar-D Winter Additive will remain effective for an indefinite amount of time.