Performance You Can Rely On

4+ is a superior-quality line of fuel additives that will reduce downtime and extend the life of your engine & equipment.

Shop Now

KEEP YOUR FUEL SYSTEM CLEAN

Reduce downtime with the 4+ high concentration solution. It is easy to use, and safe for all engines.

4+ FUEL ADDITIVES & OTHER PRODUCTS

4+ Arctic: Anti-Gelling

4+ Arctic: Anti-Gelling

From $35.38
4+ Diesel Melt: Emergency Anti-Gelling

4+ Diesel Melt: Emergency Anti-Gelling

From $23.82
4+ Polar Max: Winter Anti-Gel

4+ Polar Max: Winter Anti-Gel

$35.27
4+ Premium: Fuel Treatment for Top Performance

4+ Premium: Fuel Treatment for Top Performance

From $30.21
4+ Revive: Engine & Fuel System Cleaner

4+ Revive: Engine & Fuel System Cleaner

$16.28
4+ Super Clean: Anti-Gum

4+ Super Clean: Anti-Gum

$41.07
4+ Sure Shots (Diesel) Multi-Purpose Premium Treatment Case of 12

4+ Sure Shots (Diesel) Multi-Purpose Premium Treatment Case of 12

$126.48
4+ Turbo Clean

4+ Turbo Clean

$51.79
EZY Por

EZY Por

$8.79
Petrolabs H.U.M. Out Fuel Biocide

Petrolabs H.U.M. Out Fuel Biocide

$42.30
Rev-X High Performance Oil Additive

Rev-X High Performance Oil Additive

$47.20

"WHEN I TRIED THE 4+ FUEL ADDITIVES, I WAS BLOWN AWAY AT HOW WELL THEY WORK. THEY ARE BY FAR THE BEST I HAVE EVER TRIED, AND I’VE TRIED ALMOST ALL OF THE DIESEL ADDITIVES ON THE MARKET."

– CJ Muscha, DAK Diesel LLC

Blog

Diesel Fuel Additives Keep Your Equipment & Fuel System In Top Shape

Percy Hoff, President of DSG Power Systems, owner of the 4+ Fuel Additives brand says that in modern diesel fuel systems, the ultra-low diesel fuel and heat generated by new high-pressure fuel systems cause deposits to form inside injectors. When machinery is stored, these deposits can harden and result in non-start issues or worse… damage to the fuel injection system. A good fuel additive such as 4+ Premium will clean up and refresh your fuel after winter storage and keep your fuel system in top shape during the summer months. 
Continue reading