Over The Road (OTR) Line

Semi Truck Fuel Additives That Keep You on the Road

At Fuel Ox, we understand that better performance isn’t just about adding any diesel additive – it’s about delivering next-generation combustion and protection that works in the real world. 

That’s why our semi truck fuel additives go beyond basic cetane boost formulas. Every product features our proprietary Combustion Catalyst, originally developed for the U.S. Military, which initiates diesel fuel ignition at just 800°F – something no generic power service or diesel extreme competitor can match.

These diesel fuel additives enhance lubricity, improve fuel flow, and support your fuel system from the tank to the tailpipe. Whether you’re battling cold weather, dealing with cold starts, or trying to stretch every fill up, our products are designed to optimize engine performance, reduce wear, and improve mileage in most diesel engines.

Fuel Ox® OTR Improves Fuel Efficiency and Reduces Emissions

Fuel Ox® OTR is built for the realities of heavy duty trucks and fleet operations. Unlike other diesel additives that rely on boosting the cetane rating or cetane number, OTR uses our proprietary catalyst to ignite fuel at lower temperatures for a longer, more efficient burn. This results in:

• 4–8% better mileage and improved fuel economy
• Up to 70% reduction in soot emissions and diesel particulate filter (DPF) strain
• Protection for injectors, fuel filters, and the entire fuel system
• Cleaner fuel lines, less contamination, and fewer regens

Unlike others, Fuel Ox doesn’t compromise: it reduces both soot and NOx – giving drivers fewer regens, cleaner DPFs, and a 15% drop in DEF usage. This fuel additive is a cost-effective solution, with each bottle treating up to 120 gallons of diesel. It also acts as a fuel stabilizer, offering corrosion resistance and improved lubrication for fuel system components like fuel pumps and injectors.

Fuel Ox® Cold Charge OTR Is a Must for Cold Weather Driving

When the temperature drops, fuel gelling becomes a real threat. Fuel Ox® Cold Charge OTR prevents this by lowering the cold filter plugging point – true anti gel protection for diesel engines. Unlike basic additives, this product not only maintains fuel flow but also improves combustion efficiency for better mileage and more consistent performance.

Cold Charge OTR is perfect for cold weather conditions and also helps:

• Inhibit microbial growth like algae in your tank
• Clean and lubricate fuel system components for smoother engine function
• Promote easier starting and protect diesel during extreme conditions

Whether you’re running Cummins, Powerstroke, or other diesel engines, this diesel additive keeps your vehicle operational and protected during the coldest months.

Fuel Ox® Freeze Guard OTR Offers an Extra Layer of Winter Protection

Fuel Ox® Freeze Guard OTR is for when winter turns brutal. Formulated to treat up to 120 gallons of diesel, it protects against fuel gelling and lowers the cold filter plugging point, helping to prevent filter clogging and engine failure due to frozen fuel.

Freeze Guard works in tandem with Cold Charge OTR and:

• Keeps fuel flowing through fuel pumps, injectors, and filters
• Supports peak performance in harsh conditions
• Helps reduce deposits and improve cold-weather engine performance

It’s the smart choice for drivers who face sub-zero climates and can’t afford downtime. This layer of protection preserves your fuel system and maximizes winter performance.

Why Drivers Trust Fuel Ox Additives for Their Diesel Trucks

With over 30 years of usage in fleets, agriculture, construction, and most diesel engines, Fuel Ox products are trusted by pros who demand real-world results. These diesel fuel additives don’t just improve combustion – they redefine what diesel treatment should be.

Drivers choose Fuel Ox for:

• Noticeable power gains and smoother throttle response
• Consistent MPG increases and reduced DPF clogging
• Clean injectors, improved cetane, and extended component life
• Enhanced protection from corrosion, wear, and contamination

Each treatment gives more value per gallon than typical fuel additives on the market – protecting your engine, increasing fuel economy, and reducing breakdowns.

Convenient Shipping and Hassle-Free Returns

From small operations to nationwide fleets, Fuel Ox ships globally with durable packaging that preserves additive strength and shelf life. Whether you need a bottle or a drum, our supply meets the demands of any truck, car, or diesel system. Our return policy is simple, and our team is always ready to contact and assist you.

Fuel Ox Makes Semi Truck Fuel Additives That Work

Fuel Ox products are purpose-built – from the tank to the injectors – to protect and enhance your entire fuel system. With proprietary chemistry, they go further than a cetane boost or basic diesel fuel additive. They improve fuel flow, reduce deposits, clean critical parts, and help your diesel engine achieve peak performance in all climates.

If you want better engine performance, fewer cold starts, cleaner filters, and more reliable combustion, look no further. Fuel Ox delivers the best results – mile after mile, fill after fill.