Seven Key Features of Diesel Guard Supreme Premium Fuel Additive


Today’s sophisticated diesel engines depend on a superior grade of diesel fuel for maximum fuel economy, power and emission control. We asked ValvTect to share with us what differentiates Diesel Guard Supreme premium diesel fuel additive from the rest of the pack.

ValvTect created Diesel Guard Supreme premium diesel fuel additive for today’s high performance diesel engines. Here’s Diesel Guard Supreme’s specially formulated seven key features:

1. Cleans-up Injector Deposits 

Injector deposit build-up can cause poor injector spray patterns that reduces engine performance. Diesel Guard Supreme prevents the formation of deposits as well as cleans up existing deposits as documented by the “Superior” rating in the Cummins L-10 Injector Depositing Test, Peugeot Coking Test and extensive field studies. With Diesel Guard Supreme, Fuel Economy Improvement  for Light Duty increased up to 13.6% and Heavy Duty increased up to 7.5%. Reduced Black Smoke by 30%* and reduced Particulates by 39%*.

* test data available

2. Maintains Fuel Stability

Fuel stability is essential to prevent formation of insolubles and sludge, formed by high engine temperatures and extended storage. These insolubles plug filters and injectors. Diesel Guard Supreme provides improved thermal and storage stability to meet or exceed industry and engine manufacture standards. Improvements include longer filter life, lower maintenance costs and extends engine life.

3. Improves Lubricity

Low sulfur/aromatic diesel fuel can cause premature wear and scuffing of pumps and injectors. Wear that can lead to premature failure and expensive repairs. Diesel Guard Supreme contains a lubricity improver to prevent premature pump and injector wear that meets pump manufacturer’s requirements which improves protection against wear, lowers maintenance costs, meets manufacturers requirements and improves fuel lubricity.

4. Controls Water and Moisture

Water is always present in diesel fuel. It causes corrosion, sludge, filter plugging and icing in winter. Diesel Guard Supreme contains demulsifier to separate water and fuel in storage tanks and a dispersant to disperse a controlled amount of moisture in the vehicle fuel tank to keep it dry. Demulsifier prevents fuel/water emulsions, prevents sludge and reduces corrosion.

5. Prevents Rust and Corrosion

Condensation or free water corrode tanks and engine components, reduce engine life and increase maintenance costs. Diesel Guard Supreme contains rust and corrosion inhibitors to protect engine components and tanks from corrosion which meets NACE test standards and extends engine life while loweing maintenance costs.

6. Cetane Improvement (optional)

High cetane fuel reduces smoke, exhaust emissions and improves cold temperature starts. Various levels of cetane improver are in Diesel Guard Supreme to meet market and regulatory requirements.

7. Cold Temperature Improvement (optional)

Diesel Guard Supreme Antigel/Deicer formula contains the most effective cold flow improvers, heavy wax modifiers and deicer in the industry. It helps prevent filter plugging due to wax and icing at sub-zero temperatures.

As a CrownSource customer, you have access to deep discounts on the additives you need – like Diesel Guard Supreme –  to keep your fleet running smoothly. Login to our eProcurement Platform, CrownConnect, to see all our options on diesel exhaust fluid and equipment. Not a customer? Schedule a demo now.

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