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  1. Better Performance. TOP TIER™ Approved Diesel was created to promote better fuel quality to maintain fuel economy, reduce maintenance costs, and reduce vehicle downtime. The performance standard is to be used in tandem with regional specifications or regulations. The TOP TIERDiesel Fuel Performance Standard requires additive packages to ...

    • Fleet

      In addition to the requirements of ASTM D975 and D7467...

    • Retailer

      Obtain gasoline or diesel fuel containing your approved TOP...

    • Gasoline

      The number of sponsors has grown over the years and now...

    • OEMS

      The detergency package is validated at an independent ISO...

    • Publications

      /*! elementor - v3.23.0 - 25-07-2024 */...

    • About

      TOP TIER™ Approved Diesel was created to promote better fuel...

    • News & Events

      For TOP TIER™ Approved Diesel qualification, provide...

    • Fuel Stations

      TOP TIER™ is a fuel performance standard written by auto...

  2. Mar 9, 2023 · Brands like Cenex are pushing premium diesel and highlighting its benefits like: “A premium diesel has a higher cetane number, better lubricity and includes detergents that provide injector-cleaning capability versus standard No. 2 diesel. Cetane measures a fuel’s ignition delay. Higher cetane equals a shorter delay and better ignition ...

    • Tim Esterdahl
  3. Collaboratively introduced in 2004 by General Motors, BMW, Toyota, and Honda, TOP TIER™ Approved Gasoline and Diesel have become synonymous with exceptional fuel quality and engine care. Now, they are joined by seven more leading auto manufacturers including Audi, Daimler Truck, Ford, Mercedes-Benz, Navistar, Stellantis, Subaru of America, and Volkswagen.

  4. Aug 22, 2023 · The premium at Kwik Trip has higher cetane and lubrication additives and isn't bio. So, it gets better mpg in my trucks. I still run a tank of their #2 which is 5-20% bio every once in a while to help clean the system out and the higher lubrication that bio is good for. 2023 Silverado 1500 LTZ CCSB, 3.0 LZ0, Summit White, iDash 1.24.11.

  5. Aug 5, 2024 · Over 50 major brands offer Top Tier gas and diesel fuel in the U.S., which is noted by the trademarked Top Tier logo on the pump, the pump handle, the canopy over the pumps, or in the station window.

    • Jim Gorzelany
  6. Sep 26, 2023 · Premium Diesel: Is enhanced with a blend of specialized additives that can improve lubricity, detergency, stability, and more. These additives can keep the engine cleaner, protect fuel system components, and even extend fuel storage life. Lubricity: Standard #2 Diesel: Provides basic lubrication. Premium Diesel: Contains additives that enhance ...

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  8. Jun 12, 2023 · BP (British Petroleum): BP Ultimate Diesel is a high-quality fuel designed to bust the dirt in your engine. It also promises better fuel efficiency and lower emissions. Chevron: Chevron’s diesel fuels are marketed under the Diesel, Diesel #2, and Chevron Ultra Low Sulfur Diesel brand names.