Bison Transport decided to try POWERGUARD (TM) D4 in their highway trucks and reefer/heater units to help reduce their fuel and cold weather related diesel engine issues. Recognizing the benefits of using advanced detergents, fuel stabilization and effective cold weather protection, Bison Transport switched to the all-season, 100% active, multi-component POWERGUARD (TM) D4 from Innospec Fuel Specialties.

“We saw a dramatic decrease in the number of fuel related maintenance issues we had been accustomed to seeing and this, over a winter where temperatures were exceptionally cold. We are extremely pleased with the performance of POWERGUARD (TM) D4 and would not hesitate to recommend its use.”

Jeremy Gough, Director of National Fleet Maintenance


“We have been a dealer of Innospec Fuel Specialties’ POWERGUARD (TM) D4 and RED ALERT (TM) since 2018 and we and our customers are very pleased with the performance of these premium quality diesel fuel additives. POWERGUARD (TM) D4 provides our customers with a simple, one product - year round protection and RED ALERT (TM) provides the security that is so critical in the extreme cold of Canadian winters. The expertise and professionalism of the Innospec team has proven to be a valuable resource for us as we continue to provide our customers with proven solutions to today’s complex fuel related issues.”

Kevin Semenchuk, Director of Parts, Freightliner Manitoba