FUEL TREATMENT & WATER CONTROL.
CANADA & USA

Fuel Solutions for Modern Diesel Engines

Modern diesel fuel systems are more advanced—and more vulnerable—than ever. From fuel contamination and injector deposits to cold weather gelling and poor fuel stability, even minor fuel issues can lead to costly downtime, lost power, and expensive repairs.

See how Team Fuel gets ahead with... 4+ Fuel Additives.

We deliver proven diesel fuel treatment solutions, fuel additives, and filtration strategies designed to protect your equipment and restore peak performance. Backed by over 40 years of real-world engine experience, our solutions target the root causes of internal diesel injector deposits (IDID), fuel degradation, and combustion inefficiency.

Whether you operate heavy equipment, farm machinery, transport trucks, or industrial power systems, we can help you:

Eliminate fuel-related failures

Improve fuel economy and combustion efficiency

Prevent injector fouling and system wear

Operate in extreme Canadian conditions

Clean, stable fuel isn’t optional—it’s the foundation of performance, reliability, and profitability.

Shop Fuel Solutions Now Call Our Fuel Additive Experts (800-667-6879)
Trusted By Farmers, Fleets and Industrial Operators Across Canada - since 1983

If Your Equipment Feels Off… Fuel Is Often the Reason.

Modern diesel fuel is not what it used to be. Ultra-Low Sulphur Diesel (ULSD) and biodiesel blends introduce new challenges that many operators don’t see until performance drops. You may be experiencing:

Hard Starting (Especially in Cold Weather)

This could be as simple as ensuring that a cold start device such as an oil pan heater is used. It could also relate to frozen fuel. Check for fuel flow at the fuel filter outlet. If it is low or there is no flow at all you may need an additive to liquidize the fuel. Buy Diesel Melt Now or Find a 4+ Dealer.
Loss of Power (Under Load)

This may be an indicator of fuel filter plugging. Remove the fuel filter and check for discoloration (turning grey or black). This may be an indication of Internal Diesel Injector Deposits (IDID) which occurs during the combustion process involving high pressure, heat, and Ultra Low Sulphur Diesel. Bio diesel blending can contribute to this issue. Read more about IDID or Clean up your system with 4+Super Clean now.
Plugged Filters (Over and over again)

This may be an indicator of fuel filter plugging. Remove the fuel filter and check for discoloration (turning grey or black). This may be an indication of Internal Diesel Injector Deposits (IDID) which occurs during the combustion process involving high pressure, heat, and Ultra Low Sulphur Diesel. Bio diesel blending can contribute to this issue. Read more about IDID or Clean up your system with 4+Super Clean now.
Rough Running or Surging Engines

This may be an indication of sticking injectors or unstable fuel pressure. Conduct a fuel system flush with 4+ Super Clean. See how PACCAR reccomends this type of maintenance on thier service bulletin
Unexplained Increase in Fuel Consumption

You may be experiencing a loss of power that is causing more downshifts and more throttle use. Call our service department (800-667-6879) to book a diagnostic appointment.
Injection System Failures

These are not random problems. In most cases, they trace back to fuel quality and contamination inside your system. Visit our knowledge bank to learn more.

The fuel you have delivered is normally good and clean: It’s normally what happens later that causes problems. Ultra-low Sulphur Diesel (ULSD) Attracts Moisture

Biodiesel Blends attract more water than ULSD. Water Settles in Tanks and Equipment Over Time, causing sludge and fuel degradation. Inside your engine, Internal Diesel Injector Deposits (IDID) develop. To learn more about IDID watch this video.

These are not random problems. In most cases, they trace back to fuel quality and contamination inside your system.

Whats Actually Happening?

Here Is the Situation Inside Your Fuel System...

Ultra-low Sulphur Diesel (ULSD) Attracts Moisture

The process and chemistry when refining ULSD fuel attracts moisture (hygroscopic).
Biodiesel Blends Introduce Instability

In cold climates, diesel fuel can:

  • solidify
  • lose filterability 
  • restrict flow 

This leads to:

  • plugged filters 
  • no-start conditions 
  • downtime at the worst possible time 
Water Settles in Tanks and Equipment Over Time

Water enters fuel tanks through condensation, poor storage, or supply chain contamination.

Once inside, it settles at the bottom and creates:

  • corrosion 
  • microbial growth 
  • filter plugging 
  • injector damage 
Internal Diesel Injector Deposits (IDID)

Modern high-pressure fuel systems are extremely sensitive.

Heat and fuel instability create deposits inside injectors that lead to:

  • poor atomization 
  • power loss 
  • rough running 
  • increased fuel burn

To learn more about IDID watch this video

Poor Atomization âžź Incomplete Combustion âžź Power Loss âžź Component Damage âžź Safety Issues

The DSG Approach - How We Solve Your Fuel Problems

STEP 1

IDENTIFY THE ISSUE

Water deposits? Contamination? Identifying the root cause of your issues is the first step to finding out the proper solution to your fuel troubles.

STEP 2

APPLY TARGETED TREATMENT

Use the correct 4+ Fuel Additives formula blended to treat the specific issue plaguing your diesel fuel system. With 7 different formulas, there is a solution for almost everything.

STEP 3

REMOVE THE CAUSE

Utilize the additives on schedule to extract water, remove contaminates, lubricate components, restore cetane and more. Eliminate the fuel issues we are able to identify.

STEP 4

PREVENT RECURRENCE

Follow a personally catered plan to maintain fuel stability and performance. Monitoring changes while helping you keep up with best fuel practices.

Call us (800-667-6879) Now!

See What Farmers Across Canada Have To Say

Trevor Lewis Farms

Trevor Lewis is one of Saskatchewans largest farm producers.

Discover Trevors secret and find out why his farm machinery never stops - not even for a filter change.

What Others Have to Say

“I’m an owner/operator of a 2017 Kenworth W900B with a PACCAR X13 Engine...I have started using 4+ Premium and have been able to reduce my fuel consumption by over 100L per week. I have gone from consuming 1,565 L per week to only 1,430 L per week... Dollars and cents matter and the numbers speak for itself.”

—A. Devega (1398078 BC Ltd.)
Lumby, BC

Read All Testimonials

Time Tested Solutions. Over 40+ Years of Proven Results

Since 1983, we have been servicing all kinds of diesel equipment. Our Canadian tested 4+ Fuel Additives are formulated to solve these issues and prevent future problems. Try out quality solutions like DQTubes and Separ Filter Systems.

4+ Fuel Additives

Advanced Fuel Chemistry for Modern Diesel Engines

The 4+ line of fuel additives is designed specifically for today’s diesel challenges—ULSD, biodiesel blends, and high-pressure injection systems.

Key Benefits:

  • Cleans internal injector deposits (IDID) 
  • Improves fuel economy and power 
  • Enhances lubricity and protects components 
  • Reduces emissions and rough running 
  • Improves cold weather performance 

Primary Product Options:

Shop 4+ Fuel Additives

DQ Tubes (Water Removal System)

Remove Water Directly from Your Storage or Machinery Fuel Tanks

The DQ Tube is a simple and effective way to physically remove water from fuel tanks—where additives alone cannot solve the problem.

Key Benefits:

  • Removes free water from tank bottoms 
  • Prevents microbial growth and corrosion 
  • Reduces filter plugging 
  • Works in storage tanks and equipment 

Primary Product Options

  • Storage Tank Option
  • Machinery Fuel Tank Option
Learn more about DQ Tubes

Filtration & Fuel Polishing

Protect Your Valuable Assets - Keep Fuel Clean Before It Reaches Your Engine

Proper filtration is critical. DSG supplies and supports advanced filtration systems. Install your own inline filtration or request fuel polishing from us.

Key Benefits:

  • Remove water and particulates 
  • Extend filter life 
  • Protect injectors and pumps

Primary Product Options:

  • Separ Filters
  • Fuel Polishing Equipment
Talk to a Fuel Specialist

Industries We Support

Farmers & Agriculture

Learn More

Mechanics & Repair Shops

Learn More

Industrial & Construction

Learn More

Generators & Power Users

Learn More

Trucking & Transport

Learn More

Visit our Knowledge Bank - Powering Diesel Fuel and Machinery Education.

Blog Topics

Generator Tips & Maintenance

Learn all about generators. From maintenance to buying a new piece of equipment. Start here.

Modern Diesel Fuel Issues

We explain everything we know about modern diesel fuel issues. Become an expert yourself.

Learn More About Our 4+ Fuel Additives

Learn about our history, use cases, success stories and more.

Vintage diesel fuel pump with 'DIESEL' branding and digital display.

More Blog Content Coming Soon

Tell us what diesel related topics interest you.

Click Here to See All Blogs

Case Studies & Service Bulletins

CAT3406 - Fuel Savings Test

Reduce fuel consumption by up 5% with 4+ Fuel Additives. See our test results here.

PACCAR Powertrain Service Bulletin

EPA2021 and EPA2024 PACCAR MX Engine Fuel Injector Cleaning Procedure

4+ Fuel Additives Emissions Data

See how utilizing 4+ Fuel Additives can help reduce the emissions of your operations

DSG Power Systems - IDID Tech Bulletin

Learn more about IDID and how we combat this common modern diesel fuel system issue.

Click Here to See All Technical Content

Learn with Videos

Bosch - DCI200 Test Stand

Check out our Bosch DCI200 in action. Modern technology for modern diesel issues.

Bosch - EUI Testing

Check out our EUI testing capabilities using modern retrofitted technology.

Modern Fuel Injector Issues

Learn About Internal Diesel Injector Deposits (IDID) and how they form on your injectors.

4+ Diesel Melt - Ad Spot

See how quick 4+ Diesel Melt can save you in a Winter emergency. In 30 minutes.. or less.

Click Here to See All Videos

Join The Clean Fuel Movement Today!

Fuel issues are often hidden—but they are fixable. Talk to our team and get a clear plan to restore performance and reliability.

Shop 4+ Fuel Additives Now Call Out Fuel Experts (800-667-6879)

Check Out Our Other Departments...

Maybe we can help you with something else.

Fuel Issues in Generators?

Check Out Our Power Solutions

Need Filtration Upgrades?

Check Out Our Quality Parts

Equipment Running Poorly?

Check Out Our Repair Services