For drivers, especially those who operate trucks, the cold and rainy season is not just a risky time to drive where they need to be more careful when driving. It is also the season where they encounter more problems. One example is diesel fuel gelling.
Paraffin wax in diesel fuel typically improves the viscosity of fuel and enhances lubrication. If the paraffin present in the diesel begins to solidify, diesel fuel gelling occurs. This usually happens during low or cold temperatures.
Gelled diesel fuel: Explanation and resolution
At thirty-two degrees Fahrenheit, the paraffin wax in the diesel fuel will start to crystallize. It will leave the gas reservoir clouded. At ten to fifteen degrees Fahrenheit, it will begin to gel and block the gas tank and filters. The problem can worsen to the point where the 3.nmmfuel no longer flows which will render your vehicle’s engine useless.
1. Pour point and gel point in diesel fuel gelling
The gel point temperature needs to be returned to its un-gel point, so the diesel can move normally again. Usually, the un-gel point of diesel fuel is around the pour point temperature. The waxes that already solidified will most likely stay solid until the remix temperature is utilized to finally liquefy or remelt it.
2. How to identify diesel fuel gelling
3. How to avoid diesel fuel from gelling
Go on the idle engine
If you ask around, most probably, you'll hear drivers advising to keep the motor running so diesel fuel will not solidify. Yes, it might work; however, it's not recommended for two reasons. First, it will affect fuel usage negatively. Second, it can lead to motor wear and tear and also, excessive emission.
You'll hear drivers advising to keep the motor running so diesel fuel will not solidify
>>> You might concern: How to fix a rough idle or stalling car?
Keep your vehicle in heated storage or out of the cold
Another primary way to avoid the occurrence of diesel fuel gelling is to manage the facility’s temperature where the engine will be stored. When the engine is running, the fuel is flowing and moving, which means, it doesn’t have the opportunity to gel or solidify.
When you store your car or any diesel-powered equipment, make sure the storage or garage is heater or climate-controlled. It will be enough to prevent diesel fuel from gelling. But, this option may not be practical and realistic for most people.
Manage the facility’s temperature where the engine will be stored
>>> Read more: 6 reasons to park your car in a garage.
Use fuel additives that are meant to prevent fuel gelling
One of the most popular and easiest ways to avoid diesel fuel from gelling is to add a diesel fuel additive. The additives will prevent paraffin wax to gel or solidify. There are also fuel additives that offer other cold-weather benefits like improving cold engine starts and eliminating harmful deposits from the fuel injectors of your car.
During the cold season, you will notice that your car, diesel fuel or any equipment need additional care. If you fail to take proper precautions, like the options stated above, it can render your diesel engine useless.
One of the most popular and easiest ways to avoid diesel fuel from gelling is to add a diesel fuel additive
4. Best diesel fuel additives
If you're looking for fuel additive products for your diesel engine, we list down some of the best products available in the market. It will help you find the best product for your diesel engine, and it will save you from the inconvenience of fuel gelling.
- PowerService Kleen +Cetane Boost Additive
- Lucas 10013 Fuel Treatment
- Royal Purple Stabilizer and Fuel System Cleaner
- Liqui Moly Super Diesel Additive
- Biobor JF – Diesel Fuel Biocide
- Techron D Concentrate
>>> Useful article: What are Fuel Additives and Do They Really Work?
Additionally, you can also ask your local dealer or automotive shops for recommendations. Just remember that diesel fuel gelling must be prevented since it can cause significant trouble with your car's engine and its components. If in doubt, you can always ask for assistance from a professional.
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