Power Service Diesel 911 Winter Emergency Fuel Additive
Emergency Diesel Fuel Treatment for Gelled Fuel and Frozen Fuel Filters
Power Service Diesel 911 is a winter emergency diesel fuel additive designed to restore fuel flow when cold weather has already caused diesel fuel to gel or fuel filters to freeze. Its Winter Rescue Formula reliquefies gelled diesel fuel, de-ices frozen fuel filters, removes water, and helps restore fuel flow to an engine that will not start or has lost power in cold conditions.
Diesel 911 is an emergency recovery product, not a preventive diesel anti-gel. Once the immediate winter fuel problem has been corrected, treat the fuel with Power Service Diesel Fuel Supplement +Cetane Boost as directed to help prevent additional gelling.
Key Benefits
- Reliquefies gelled diesel fuel
- De-ices frozen fuel filters
- Helps restore fuel flow during winter fuel emergencies
- Removes water from diesel fuel
- Helps prevent fuel-filter icing
- Contains Slickdiesel Lubricator for fuel-pump and injector lubrication
- Effective in diesel fuel, including ULSD and biodiesel blends
- Safe for use in diesel engines when used according to label directions
- Does not contain metal or metal ions
- Compatible with Diesel Fuel Supplement +Cetane Boost
When to Use Diesel 911
Use Diesel 911 when cold weather has already caused a fuel-flow problem, particularly when:
- The engine will not start during cold weather
- The engine starts but cannot maintain power
- Diesel fuel in the tank has gelled
- Wax buildup has restricted fuel flow
- Water has frozen inside the fuel filter
- A frozen filter is restricting fuel delivery to the engine
Diesel 911 should not replace a preventive winter anti-gel treatment. If the fuel is still liquid and the goal is to prevent future gelling, use Diesel Fuel Supplement +Cetane Boost instead.
Diesel 911 vs. Diesel Fuel Supplement +Cetane Boost
Diesel 911
- Winter emergency rescue treatment
- Used after fuel has gelled or filters have frozen
- Reliquefies gelled fuel
- De-ices frozen fuel filters
- Helps restore fuel flow
Diesel Fuel Supplement +Cetane Boost
- Preventive winter diesel additive
- Added before fuel gels
- Helps prevent wax-related fuel-filter plugging
- Protects against fuel-filter icing
- Intended for regular cold-weather treatment
The two products are compatible and can be used together. After using Diesel 911 to correct a winter fuel emergency, add Diesel Fuel Supplement +Cetane Boost as directed to help prevent the problem from recurring.
How to Reliquefy Gelled Diesel Fuel
The emergency treatment rate depends on the Diesel 911 package size.
| Diesel 911 Package |
Gelled Fuel Treatment |
| 26 oz. |
Treats 40 gallons |
| 64 oz. |
Treats 100 gallons |
To restore gelled fuel:
- Add the appropriate amount of Diesel 911 directly to the fuel tank.
- Remove the fuel filter or filters.
- Fill each filter with a mixture of 50% Diesel 911 and 50% diesel fuel.
- Reinstall the fuel filters.
- Start the engine.
- Allow the engine to idle while the fuel system warms.
- Add Diesel Fuel Supplement +Cetane Boost as directed to help prevent additional gelling.
Always follow the current container directions for the specific Diesel 911 package being used.
How to De-Ice a Frozen Diesel Fuel Filter
If the diesel fuel in the tank is still liquid but the engine will not start or has lost power, the fuel filter may contain frozen water.
- Confirm that the fuel in the tank is not gelled.
- Remove the fuel filter or filters.
- Empty the remaining liquid from the filters.
- Fill each filter with 50% Diesel 911 and 50% diesel fuel.
- Reinstall the filters.
- Start the engine.
- Treat the fuel with Diesel Fuel Supplement +Cetane Boost as directed to help prevent future winter fuel problems.
Water Removal and Fuel-Filter Icing Treatment
Diesel fuel systems can accumulate water through condensation and fuel handling. When temperatures fall below freezing, water trapped in a fuel filter can freeze and restrict fuel flow.
| Package Size |
Petroleum Diesel |
Biodiesel Blends |
| 26 oz. |
Up to 100 gallons |
Up to 50 gallons |
| 64 oz. |
Up to 250 gallons |
Up to 125 gallons |
Important: These treatment amounts are different from the stronger emergency dosage used to reliquefy already-gelled diesel fuel.
Diesel Fuel and Engine Compatibility
Diesel 911 is effective in:
- Conventional diesel fuel
- Ultra Low Sulfur Diesel (ULSD)
- Biodiesel blends
Its Slickdiesel Lubricator helps provide additional lubrication for fuel pumps and injectors, particularly where lower-lubricity diesel fuel is a concern.
Diesel 911 is added to the diesel fuel system only. Do not add Diesel 911 to the Diesel Exhaust Fluid (DEF) tank.
Frequently Asked Questions
What is Power Service Diesel 911?
Power Service Diesel 911 is a winter emergency diesel fuel additive used to reliquefy gelled diesel fuel, de-ice frozen fuel filters, remove water, and restore fuel flow during cold-weather fuel emergencies.
Does Diesel 911 prevent diesel fuel from gelling?
No. Diesel 911 is designed primarily to recover fuel that has already gelled or filters that have already frozen. For preventive winter treatment, use Power Service Diesel Fuel Supplement +Cetane Boost.
Will Diesel 911 un-gel diesel fuel?
Yes. Reliquefying gelled diesel fuel is one of the primary uses of Diesel 911. The product is added to the fuel tank and also used in the fuel filter according to the current directions.
How much Diesel 911 do I use for gelled fuel?
For the current concentrated formulas, a 26 oz. bottle treats 40 gallons of gelled fuel, while a 64 oz. bottle treats 100 gallons of gelled fuel. Follow the package directions for the exact container being used.
How do I use Diesel 911 on a frozen fuel filter?
If the fuel in the tank remains liquid, remove the frozen fuel filter, empty it, and refill it with a mixture of 50% Diesel 911 and 50% diesel fuel. Reinstall the filter and start the engine.
What is the difference between Diesel 911 and Diesel Fuel Supplement?
Diesel 911 is an emergency rescue product used after fuel has gelled or a fuel filter has frozen. Diesel Fuel Supplement +Cetane Boost is a preventive winter additive designed to help stop fuel gelling and fuel-filter icing before they occur.
Can Diesel 911 and Diesel Fuel Supplement be used together?
Yes. The two products are compatible. Diesel 911 can be used to restore fuel flow during an emergency, followed by Diesel Fuel Supplement +Cetane Boost to help prevent additional gelling.
Does Diesel 911 remove water from diesel fuel?
Yes. Diesel 911 is formulated to remove water and help prevent fuel-filter icing caused by water in the diesel fuel system.
Can Diesel 911 be used with ULSD?
Yes. Diesel 911 is effective in Ultra Low Sulfur Diesel.
Can Diesel 911 be used with biodiesel?
Yes. Diesel 911 is effective in biodiesel blends. Treatment rates for water removal and icing protection are higher for biodiesel blends, so follow the current container directions.
Is Diesel 911 an anti-gel?
Diesel 911 is better classified as an emergency gelled-fuel recovery product rather than a preventive anti-gel. Use Diesel Fuel Supplement +Cetane Boost when preventive anti-gel protection is needed.
Can Diesel 911 be added to the DEF tank?
No. Diesel 911 is a diesel fuel additive and should only be added to the fuel system. Never add Diesel 911 or other Power Service diesel fuel additives to a DEF tank.
Can Diesel 911 be used in modern diesel engines?
Yes. Diesel 911 is designed for diesel engines and does not contain metal or metal ions. Follow the vehicle or equipment manufacturer's fuel recommendations and the current Diesel 911 label directions.
Why does a diesel fuel filter freeze?
Water can accumulate in diesel fuel through condensation and fuel handling. At temperatures below 32°F, water collected in the fuel filter can freeze, restrict fuel flow, reduce engine power, or prevent the engine from starting.
What should I use after Diesel 911 gets the engine running?
After the winter emergency has been corrected, add Power Service Diesel Fuel Supplement +Cetane Boost as directed to help prevent additional fuel gelling and fuel-filter icing.
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