Fuel Economy Solutions

6 products

Which product fits the job?

Product What it solves Best for Key spec
406 Injector Perfector Fouled injectors and intake valves, combustion deposits, gas engine knock, ping and run-on Gasoline engines (any ethanol blend), diesel fuel systems and burner nozzles Treat rate per 20 gal: 12 oz clean-up, 3 oz keep-clean
3000 Phaser Premium Gasoline Fuel Additive - Prevent and reverse phase separation Water and phase separation in ethanol gas, plus carbon, gum, sludge and varnish deposits Gasoline, marine, diesel and industrial engines, especially those running ethanol gas Maintenance rate: 1:500 (1 part per 500 parts gasoline)
403 Protect O Lube Plus Carbon, gum and varnish buildup, engine acids, sticking valves and moisture in fuel Gasoline, marine, industrial and pre-2007 on-road or pre-2011 nonroad diesel engines Treat rate: 1:300 (1:1000 maintenance, 1:100 cleanup)
5007 Premium Diesel Fuel Additive Injector deposits (IDID), hard cold starts, low ULSD lubricity and sludge filter plugging ULSD and biodiesel to B20 in common rail and traditional diesels, on-road and nonroad 1:1000 maintenance (1.3 oz/10 gal), 1:250 first two tanks
405C Power-Master Plus Premium Diesel Fuel Additive Low cetane diesel, black smoke, and fuel that won't stay clean and stable All diesel engines, on-road and nonroad, plus fuel oil for furnaces Treat rate: 1 gal per 3,000 gal diesel (1:3000)
5757 Premium Winter Klenz ID Fuel Additive w/ Ice Check Diesel gelling and fuel icing in winter, hard cold starts and injector deposits (IDID) Winter ULSD and biodiesel to B20 in common rail and traditional diesel engines Treat rate 1:1000 (range 1:2000 to 1:500)

Specs are summarized from each product's manufacturer Technical Data Sheet, linked on its product page.

Fuel Economy Solutions questions and answers

  • What is the difference between 405C, 5007 and 5757 diesel additives?

    405C Power-Master Plus is a concentrated cetane improver that typically raises cetane 3 to 4 numbers at 1 gallon per 3,000 gallons of diesel, to improve combustion and ignition efficiency. 5007 Power Klenz ID adds 4 cetane numbers in responsive fuels at its optimum treat rate and also cleans and prevents internal diesel injector deposits (IDID). 5757 Winter Klenz ID does both and adds anti-gel and anti-icing additives for winter.

  • Which Primrose fuel additives can I use in gasoline?

    For gasoline, this collection offers Phaser 3000, 406 Injector Perfector and 403 Protect-O-Lube Plus, and all three can be used in ethanol blended gasoline. Phaser 3000 is an ethanol gasoline fuel stabilizer that, at the proper treat rate, prevents phase separation; 406 cleans fuel injectors and intake valves; and 403 removes carbon, gum, sludge and varnish. Keep 405C out of gasoline: Primrose formulates it for diesel fuel only.

  • Which Primrose additive cleans fuel injectors?

    For gasoline engines, 406 Injector Perfector is a Primrose fuel injector and intake system detergent that cleans fouled injectors and intake valves and removes combustion chamber deposits. For diesel, 5007 Power Klenz ID and 5757 Winter Klenz ID clean out and prevent internal diesel injector deposits (IDID) in high pressure common rail engines. In gasoline, Phaser 3000 and 403 Protect-O-Lube Plus also clean injectors and carburetors.

  • Which of these fuel additives can I use in a 2007 or newer diesel truck?

    Skip 403 Protect-O-Lube Plus: Primrose states it does not comply with federal ultra-low sulfur content requirements for model year 2007 and newer diesel motor vehicles or model year 2011 and newer diesel nonroad equipment engines. 405C, 5007, 5757, 406 Injector Perfector and Phaser 3000 each carry Primrose's statement that they comply with federal low sulfur content requirements for use in diesel motor vehicles and nonroad engines.

  • How much of each Primrose fuel additive do I add to my fuel?

    The main Primrose treat rates are 1:3000 for 405C, 1:1000 for 5007 and 5757, 1:500 for Phaser 3000 and a recommended 1:300 for 403 Protect-O-Lube Plus. 5007 starts at 1:250 for the first two tanks, and Phaser 3000 doses stronger than 1:500 may only be used in off-road gasoline. 406 Injector Perfector takes 3 oz per 20 gallons to keep clean, or 12 oz per 20 gallons to clean up.