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Posted: 09/08/2016

Fuel quality impacts every compact machine in the industry. Are you prepared?

In the past, compact equipment was more forgiving of variances in fuel quality – so when fuel-related issues come up today, you might think there’s something wrong with your machine. The truth is, your fuel could be to blame.

Every compact equipment manufacturer has introduced new engine emission technology that includes high pressure fuel systems and exhaust aftertreatment systems. These systems are necessary for meeting interim Tier 4 (iT4) and Tier 4 (T4) emissions standards, but they are highly susceptible to contaminants. Clean fuel is critical for today’s engines.

A proactive fuel management strategy will ensure reliable performance and prevent unexpected issues caused by fuel contaminants.

How to develop your fuel management plan

Today’s iT4 or T4 machines are sensitive to impurities. And that’s the case no matter which brand you’re running. A little planning sets the stage for reliable performance and long machine life.

Step 1 - Understand tier 4 engine technology.

  • High-pressure common-rail (HPCR) technology uses extremely precise components that demand clean fuel.
  • Fuel pressures have risen to as high as 30,000 psi. Contaminants combined with high fuel pressure create erosion that negatively impact performance, fuel economy and component longevity.

Step 2 - Know the fuel supply issues.

  • Chemistry changes to reduce emissions with ultra-low-sulfur diesel (ULSD) make it harder for fuel suppliers to consistently provide high-performing fuel.
  • Refining techniques and additives vary from supplier to supplier.
  • Current fuel standards do not address the cleanliness needed for HPCR engines.
  • Biodiesel creates water-related challenges, such as microbial growth and winter freezing.

Step 3 - Select the best supplier.

  • Verify that your supplier uses water-removing filters rated to 10 microns or less on their fuel delivery lines.
  • To avoid gelling, confirm your supplier uses a winter blend of #1 and #2 diesel with a low cloud-point temperature.

Step 4 - Keep spare fuel filters at all times.

  • Have a spare filter on hand for every HPCR engine in your fleet.
  • Use only the correct Bobcat filter to ensure component protection.

Step 5 - Follow best practices.

  • Refill machine fuel tanks at the end of a work shift to reduce condensation.
  • Use only clean fuel cans dedicated for diesel use. Store cans out of the weather and check their cleanliness regularly.
  • Drain water traps daily.
  • Follow cold-weather procedures.
  • Use only Bobcat-approved additives.

Step 6 - Stay educated.

  • Ask your dealer about Bobcat-sponsored fuel clinics.
  • Watch industry websites* for more information:
    • DieselNet.com
    • CummunsFiltration.com
    • MyCleanDiesel.com
    • Biodiesel.org

*Bobcat Company does not necessarily enorse the views expressed or information provided on industry websites.


Bulk fuel considerations

Step 1 - Evaluate your bulk fuel storage.

  • Ensure your tank has a 1-micron desiccant style vent filter.
  • Your dispensing filter should be the water removing design and rated to 10 microns or less.

Step 2 - Test and analyze fuel.

  • Collect and test fuel to measure fuel cleanliness, water percentage and cloud point. See your dealer for available fuel analysis kits and water finding paste.

Step 3 - Estabilish a recordkeeping system.

  • Keep a storage tank preventative maintenance log, and track the following:
    • Maintenance history
    • Refill/supplier history
    • Filter replacements
    • Particle counts

Step 4 - Prepare your fuel supply for winter.

  • Switch to a winter blend early to be ready for surprise temperature changes.
  • To avoid gelling, confirm your supplier uses a winter blend of #1 and #2 diesel with a low cloud-point temperature.
  • If using biodiesel, completely purge your tank before winter.

Use only Bobcat fuel additives for the best protection and performance.

All-tier summer diesel fuel additive.

  • Cleans and prevents injector deposits to maximize horsepower and fuel economy.
  • Prevents fuel soot and sludge formation to extend filter, injector and fuel pump life.
  • Increases cetane up to 5 numbers for faster, smoother, fuel-efficient starting that minimizes wear on the electrical system.
  • Enhances thermal and oxidation stability to increase storage life of diesel fuel.
  • Enhances corrosion protection for the fuel system and storage tank.
  • Increases water dispersion to control water in equipment and storage tanks.
  • Effective in all diesel fuels including ULSD and up to B20 blends.

All-tier winter diesel fuel additive.

  • Provides superior cold-flow properties to help prevent gelling and filter plugging.
  • Significantly reduces cold filter plugging point (CFPP) temperature.
  • Prevents wax from settling during extended shutdowns in cold climates.
  • Helps to safely and gradually remove water from fuel system.
  • Aids against fuel filter icing.

Using more additive than recommended will not help and can be counterproductive. Do NOT exceed the label’s treat rate recommendations.

No additives improve fuel cloud point, so they are NOT a suitable replacement for properly blended #1 and #2 diesel for winter use.

ALL-TIER Diesel Fuel Additives - FAQ

A multi-functional fuel additive to improve diesel fuel quality and maintain maximum engine performance in today’s modern engines.

Why should I use diesel fuel additives?
The need to use a diesel fuel additive is more important than ever. Diesel fuel quality can vary dramatically from source to source and even day to day. Inconsistent fuel quality, such as low cetane number and poor lubricity, can result in reduced equipment life and performance. Bobcat ALL-TIER Diesel Fuel Additive will enhance key attributes of the fuel and is recommended throughout the year.

There are many brands of fuel additives available over-the-counter as well as through fuel distributors. Why should I use Bobcat ALL-TIER Diesel Fuel Additive?
Bobcat ALL-TIER Diesel Fuel Additive is a proprietary blend, chosen by Bobcat engineers after testing other available additives. There are no national fuel additive standards, and some additives on the market today provide little or no value. Bobcat ALL-TIER is the only choice proven to provide the level of performance expected from the Bobcat brand.

Is Bobcat ALL-TIER Diesel Fuel Additive recommended for use in all types of diesel equipment?
Bobcat ALL-TIER Diesel Fuel Additive improves the diesel fuel itself, which makes any engine run better and last longer. New engines will enjoy these benefits right from the start. Legacy engines, including pre-Tier III, along with Tier III & Interim Tier IV, will run better after just a few fill ups. Bobcat ALL-TIER Diesel Fuel Additive can be used in any diesel-powered equipment – Bobcat or other makes – on or off the farm, jobsite, or highway.

Can Bobcat ALL-TIER Fuel Additive be added to my bulk fuel storage tank?
Absolutely! Treating fuel as it is added to the bulk fuel storage tank is the optimal solution for ensuring your fuel gets a quality treat and mix. As an added benefit, Bobcat ALL-TIER contains a fuel stabilizer to maximize fuel storage and filter life, and to protect your bulk fuel storage tank from corrosion. Please note: for best mixing results, add Bobcat ALL-TIER Diesel Fuel Additive to the bulk tank prior to adding the diesel fuel.

Why does Bobcat offer both Summer and Winter All-Tier formula?
While both formulas offer the same important detergents, anti-foulants, and other components that maximize engine performance, Winter Formula includes additional ingredients to prevent fuel gelling, wax settling, and fuel filter plugging. These added ingredients make Winter formula cost more per treated gallon. Summer formula can be used the majority of the year when you are certain the temperature will not drop below freezing.

Why is my treat rate for the Winter All-Tier Diesel Fuel Additive so much higher than my Summer treat rate?
Winter diesel fuel additive contains all of the components of the Summer formula plus a robust group of winter ingredients to provide cold temperature anti-gel protection along with wax dispersion. Due to the additional ingredients in the winter formula, it requires a higher treat rate than the summer formula as you are adding more components into each gallon of diesel fuel. However, it is important not to over-treat. More is not better when it comes to additives. You will not see increased benefits by over-treating above the recommended treat rate. The 16oz bottles are designed with a fill neck so you can measure the additive you are putting into your tank.


Formula Size Treat Rate
Summer 16 oz. (473 ml) per bottle Each bottle treats 125 gallos (473L) of diesel fuel
Summer 1 gallon (3.78L) per bottle Each bottle treats 1,000 gallons (3,785 L) of diesel fuel
Winter 16 oz. (473 ml) per bottle Each bottle treats 50 gallons (189L) of diesel fuel
Winter 1 gallon (3.78 L) per bottle Each bottle treats 400 gallons (1,514 L) of diesel fuel


Why does the Winter formula have to be added when the fuel is above the cloud point?
Diesel fuel contains wax that begins to form crystals at the cloud point of fuel. These crystals will continue to grow in size until the filter plugs and the equipment shuts down. Adding winter formula when the fuel temperature is at least 15 degrees F above the cloud point of the fuel offers the optimum benefit from the “wax crystal modifier? or anti-gel used in Winter Formula.

Why does the Winter formula gel in the bottle when it gets cold?
All fuel additives that contain large amounts of “anti-gel? will thicken in their concentrated form (prior to mixing with diesel fuel) at cold temperatures. Fuel additives that don’t thicken contain little or no anti-gel components. Winter Formula contains a large amount of anti-gel and will outperform most competitive products. To prevent gelling of Bobcat ALL-TIER Winter Formula, store the bottle at or above 50 degrees F. If the product has gelled in the bottle, thaw it out and agitate, then add it to the diesel fuel.

What temperature is the fuel protected to against gelling?
Winter formula typically protects down to about 18 degrees F below the fuel’s cloud point. Results will fluctuate due to variations in fuel, even when purchased from the same supplier. When ambient temperatures reach 15 degrees F and colder, we recommend using blended number 1 and 2 diesel. In ambient temperatures below -5 degrees F and colder, we recommend number 1.

Does using Bobcat All-Tier affect fuel filter life?
Yes, it contains special components to control oxidation and sediment formation, thereby extending filter life.

Will using Bobcat All-Tier give my engine more power?
Bobcat ALL-TIER Diesel Fuel Additive contains a highly effective detergent that keeps fuel injectors clean and deposit-free, plus cetane improver, to provide maximum power and fuel efficiency in every gallon.

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