Alliant Power ULTRAGUARD™ Diesel Fuel Treatment


ULTRAGUARD™ is an all-season, multi-functional fuel treatment that provides complete fuel system and injector protection for all diesel engines. ULTRAGUARD™ is designed to improve base diesel fuel quality providing superior fuel system protection under all operating conditions. This premium diesel fuel treatment is available in 4 different sizes listed in the table below.

  • Restores Engine Power, Torque, & Improves Fuel Economy
  • Increases Cetane for Improved Engine Combustion
  • Cleans Deposits & Eliminates Stiction in Common Rail Injectors
  • Removes Water by Demulsification, Stabilizes, & Protects Against Rust & Corrosion
  • Lubricates Fuel System Reducing Friction & Wear
  • Provides Anti-Gel Protection & Improves Diesel Pour Point
  • Reduces Particulates in Exhaust Aftertreatment Systems (DPF & SCR)
  • Minimizes Filter Clogging from Asphaltenes

Alliant Power ULTRAGUARD™ has been formulated using technologically advanced chemistry
designed to protect the most advanced high-pressure common rail diesel fuel systems as
well as conventional fuel systems. ULTRAGUARD™ is alcohol free, compatible with ultra-low sulfur diesel (ULSD), bio-diesel (up to B20), and exhaust aftertreatment emission systems (DPF & SCR).

Product Weight: 13.5 lb

Alliant Power ULTRAGUARD™ Diesel Fuel Treatment is currently in stock and ready to ship within 24 business hours.

We currently are only shipping to addresses in Canada.

We offer free Shipping to Canada on all orders over $150.00 and taxes are charged based on your provinces tax %. Items are shipped via Purolator Ground. Delivery dates are good faith estimates only and are quoted in "business days"; this does not include weekends and statutory holidays. PO Box addresses are not acceptable for delivery.

Free pick-up is available at our Edmonton location but you must provide your order number and show your identification.

All orders under $150.00 are subject to a $10.00 shipping fee.

For expedited shipping and more details, click on the link below:

Customer Reviews

Based on 5 reviews

is it normal there is a smell inside my cab

Hi Frank, First off thank you for your great review! The only down fall of this great product is it stinks! If you have an empty or open bottle of the additive in your vehicle you are definitely going to smell it. If you have spilled any of the additive in your cab you can use baking soda to reduce the smell by sprinkling it on the area where the spill occurred. Hopefully this helps with your question and if you need anything else let me know.
really good stuff

Just started using it, an wont go back to using anything else.

Alliant power ultra guard.

Great product. Great price and fast shipping. Will be back!

Great service aND fast!

I ordered the Ultra Guard fuel treatment after talking with the store. The order came very quickly and I been using it for a week. I noticed that starting became easier and the knocking was much better. I highly recommend it.

Very Satisfied

I was looking for a good treatment for my diesel. Jarrod contacted me from GCL Diesel. He really went over and beyond to answer all of my questions. Even recommending another product to try. After researching. I will buy all my future additives here as well as look in to any parts for my diesel. Great service.