Even though the U.S. Environmental Protection Agency introduced new emissions standards in 2010 that require medium- and heavy-duty vehicles to significantly reduce engine emissions, many people still have questions about Diesel Exhaust Fluid (DEF), a fluid that removes harmful emissions from diesel engines. At Bear Oil Company, we have the answers!

DEF is a non-hazardous solution added to a special DEF tank on most new diesel vehicles. It looks like water and has a slight ammonia scent. DEF is never added directly to diesel fuel. It is sprayed into the exhaust and breaks down harmful gases associated with health issues such as respiratory and cardiac diseases. Vehicles equipped with DEF tanks will eventually stop running when the DEF tank is empty, until it is refilled.

If you have questions about DEF, including handling and storage, please contact us today. Our team can help you understand this relatively new technology

DEF Diesel Exhaust Fluid

Can I Use Different Brands of DEF in My Tank?

Run the tank as empty as possible. DEF fluid from different certified suppliers can be mixed. 

What Happens if I Run Out of DEF?

When DEF gets low, there should be some alarm system alerting you. If it gets too low, the vehicle will go into a low power mode and will not start.

Is DEF Corrosive?

Of all the fluids in your car, DEF is the least hazardous. However, DEF is corrosive for some metals. Do not store DEF in metal containers made of the following materials: aluminum, carbon steel, copper, and zinc.

Do I Need to Wear Protective Clothing When Filling Up the DEF tank?

No special clothing is needed when filling up your vehicle with DEF. However, it can stain clothes and should be rinsed off with water if spilled on.

What Should I Do if There is a DEF Spill?

If you spill a small amount of DEF it can be washed away with water or wiped up. If left to dry it will turn into white crystals – these too can be washed away with water.

What is the Shelf Life of DEF?

DEF has a shelf life of two years. However this can be reduced if stored in direct sunlight or remains above 86 degrees for long periods.

At Bear Oil Company, we’ve got the products you need to keep on moving. We offer a large selection of wholesale, onsite fueling, lubricant and diesel options to fleet vehicles, generators and above or underground tanks. Bear Oil Company is a distributor for many excellent brands, including Chevron, Shell, Warren, Omni and Power Service and we make it easy for you by offering tanks and equipment, as well.

We understand that your success in based, in part, on cost-effective, convenient, reliable and quality fuels and lubricants. That’s why we are “Your Partner on the Road.”

Contact Bear Oil Company today to find out how we can be partners on the road.

At Bear Oil Company, we understand how important it is to your business success to have fuel reserves on site – whether for routine use or in emergency situations. That’s why we have tank and equipment products for sale, as well as for rent.

Our professional drivers can deliver tanks anywhere you need them with safety and care. All tanks come fully equipped to ensure immediate access and usage. We also supply pumps, hoses and nozzles with our tanks. Our pumps can be customized for your specific applications, with diesel or gasoline and 12v depending on power source.

Contact Bear Oil Company today for your tank and equipment needs.

We Provide The Equipment You Need:

  • 120v & 110v Pumps Available
  • Replacement Hoses & Nozzles
  • Fuel Pump Meters
  • Transfer Tanks for Pickup Trucks & Flatbeds
  • DEF Tanks & Pumps
  • Power Service Diesel Additives

Tank Programs:

  • 1,000 - 12,000 Tanks in Our Inventory
  • Tank Delivery & Pickup Available
  • Permit Assistance Available

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No matter the size of your vehicle or construction equipment fleet, you can increase the fuel effectiveness of your engine by using a diesel fuel additive. At Bear Oil Company, we carry Power Service diesel fuel additives designed to increase your diesel engine’s life and help you get the best performance.  

Now you can reduce emissions and increase horsepower by using the correct additive. Water and internal diesel injector deposits are prevented allowing the injector to perform properly. Studies have shown that using diesel fuel additives can increase gas milage as much as 8%. 

Diesel file additives also provide all-season usability. Power Service diesel additives to provide year-round diesel engine performance improvement, trouble-free extreme weather operability and proper fuel tank hygiene.  At Bear Oil Company, we carry Power Service diesel fuel additives designed to increase your diesel engine’s life and help you get the best performance.  

Bear Oil Company’s use of Power Service diesel additives help maximize power and fuel economy, provide additional engine lubrication, prevent and clean up dirty or plugging injectors. There are additives available to remove water and slime, as well as keep stored fuel stable and fresh.

About Power Service Diesel Fuel Additive

Why do we recommend Power Service products? Because if Cummins® trusts Power Service additives you should too. Cummins® highly recommends Power Service diesel additives to vastly improve your diesel engine. Add us to your toolbox!

Plus, Power Service has been serving the needs of the diesel industry for 60 years – they’ve got the kind of experience we can relate to at  Bear Oil Company, where we’ve been in business since the 1930s. There are many things to take into consideration when deciding what fuel additives to use and when.

Call 210-494-3479 and contact Bear Oil Company for assistance.

Benefits of Fuel Additives

  • Better Fuel Milage
  • Cleaner injectors
  • Keeps injectors from sticking
  • Smoother running engine
  • Better engine power
  • Helps protect fuel pumps and injectors from poor quality diesel fuel

Yearly Maintenance Schedule
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increase fuel economy and maximize engine performance

Maximize Diesel Engine Performance and Increase Fuel Economy

reduce downtime due to fuel gelling and filter icing

Reduce Downtime Due To Fuel Gelling and Filter Icing

improve tank hygiene, eliminate water, microbes and contaminates

Improve Tank Hygiene by Eliminating Water, Microbes and Contaminates

cummins fuel logo

Legendary Deisel Engine Manufacturer

Bear Oil Company has a wide selection of lubricants for your every diesel, oil, grease and hydraulic fluid need. Our professional staff understands lubricants so they can help you answer any questions you may have about choosing the best product for your application.

Since the 1930s, we have been providing our customers with the highest quality bulk and packaged lubricants. You are welcome to pick up lubricants at our site or we’ll deliver them to you.

Because of our years of experience working in South and Central Texas, we understand the conditions you are working under – harsh temperatures, for one – and we can help you decide what lubricants can meet these challenges. We carry a large in-stock inventory of Chevron, Shell, Warren, Omni and Power Service. If we don’t have the product you need, we’ll find it for you!

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Available Products for Pick Up or On-site Delivery Include:

  • Gasoline and diesel engine oils
  • Transmission fluids
  • Hydraulic fluids
  • Antifreeze
  • Turbine oils
  • Aviation lubricants
  • Industrial lubricants
  • Compressor lubricants
  • Fire resistant and Nonconductive oils
  • Dry film lubricants
  • Metal working fluids
  • Corrosion preventatives
  • DEF (Diesel Exhaust Fluid)
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