FIND YOUR PACK

CHOOSE YOUR TANK SIZE.

Every Ferox pack uses the same catalyst technology. The colors simply represent how many gallons each tab treats.

EVERY PACK WORKS ACROSS GASOLINE, DIESEL, PROPANE, LPG, AND OTHER FUEL APPLICATIONS.

Ferox Red

UP TO 10 GALLONS

SMALL TANKS

10 tabs per pack
1 tab treats up to 8 gallons
Up to 80 total gallons treated per pack

Motorcycles, ATVs, side-by-sides, lawn equipment, generators, and other small tanks.
$16.97
SHOP FEROX RED
MOST POPULAR
Ferox Blue

UP TO 20 GALLONS

EVERYDAY VEHICLES

10 tabs per pack
1 tab treats up to 20 gallons
Up to 200 total gallons treated per pack

Cars, SUVs, pickups, vans, and most everyday vehicles.
$34.97
SHOP FEROX BLUE
Ferox Green

UP TO 50 GALLONS

LARGE TANKS

6 tabs per pack
1 tab treats up to 50 gallons
Up to 300 total gallons treated per pack

Large trucks, commercial vehicles, heavy equipment, and higher-capacity tanks.
$49.97
SHOP FEROX GREEN
Treat larger tanks with multiple Green tabs based on total capacity. One Green tab treats up to 50 gallons.
BEST PLACE TO START
Ferox Sample Pack

TRY FEROX FIRST

SAMPLE PACK

4 tabs per pack
1 tab treats up to 20 gallons
Up to 80 total gallons treated per pack

First-time customers who want to test Ferox before purchasing a full pack.
$16.97
TRY THE SAMPLE PACK

SAME TECHNOLOGY. DIFFERENT DOSAGE.

Ferox colors indicate treatment capacity—not fuel compatibility. Choose the tab that most closely matches the amount of fuel you are treating.

FIND YOUR FEROX IN 20 SECONDS

Answer three quick questions and we'll match you with the right tab and purchase option.

WHAT TYPE OF FUEL ARE YOU TREATING?

Ferox works across multiple fuel types. Your treatment capacity determines the tab you need.

HOW MANY GALLONS ARE YOU TREATING AT ONE TIME?

HOW OFTEN DO YOU FILL YOUR TANK?

YOUR FEROX MATCH

Ferox colors indicate treatment capacity, but is cross-compatible with all fuel types.
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Start Over
NEED HELP CHOOSING?

FIND THE RIGHT PACK WITH CONFIDENCE.

Ferox pack colors represent treatment capacity—not fuel compatibility. Here's what to know before choosing yours.

The catalyst technology is the same in every Ferox pack. Each color represents a different treatment capacity:

Ferox Red treats up to 8 gallons per tab

Ferox Blue treats up to 20 gallons per tab

Ferox Green treats up to 50 gallons per tab

No. Ferox works across gasoline, diesel, propane, LPG, and other fuel applications. Choose your pack based on how many gallons you are treating.

Use multiple Ferox Green tabs based on the total amount of fuel being treated. One Green tab treats up to 50 gallons, so a 100-gallon treatment would use two Green tabs.

Choose the Sample Pack if you're trying Ferox for the first time in a tank holding up to 20 gallons. It includes four tabs, giving you four treatments.

Choose a full pack if you're ready to use Ferox consistently.

Choose a dosage that covers the total amount of fuel being treated. If you have an unusual tank size, commercial application, or multiple fuel tanks, contact Ferox for dosing guidance.