Easy to Use

Simply pour zMAX Engine Formula into your engine (12oz.) or have zMAX installed by your mechanic at your next oil change. The bottle is clearly marked.

zMAX does not replace your regular oil, and using zMAX will not overfill your normal oil level because it soaks into metal. Can be used in gasoline and diesel engines.

How often should you use zMAX?

The zMAX Engine 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.