Easy to Use

Simply pour zMAX Fuel Formula into your fuel system (12oz.) or have zMAX installed by your mechanic at your next oil change. The bottles are clearly marked. Can be used in gasoline or diesel engines.

How often should you use zMAX?

The zMAX Fuel Formula treatment is recommended every 6 months or 6,000 miles, whichever comes first. 

zMAX will not void the manufacturer's warranty that comes with your vehicle.