I love this stuff
From Marty of Ellabell, Georgia on 5/20/2020.

I've been using this combo for years. I won't use anything else in any of my vehicles. I have a 2008 Ford F150 FX2 Sport with the famous, (famously bad) 5.4L 3V engine in it. I have 170,000 miles on it now and I have never replaced the timing phasers or any of the other timing components. I will absolutely chalk it up to ZMax fuel and engine formula with the combination of nothing but Royal Purple Oil. Nothing else will ever go into my vehicles. EVER! ZMAX for life.


Just to let you know I am now looking into the small engine and firearms maintenance lubes. But as with the other products, I am probably going to love these also.

Works better each time
From Dale Hyman of Baraboo, Wisconsin on 4/21/2020.

I've used engine and fuel before and it works as good or better each time I use it. Each time my car has more pep, and extra gas mileage. This is the 3rd time and this time I gained 4 MPG.

Part of the program
From Robert of Valrico, Florida on 1/13/2020.

I HAVE BEEN USING ZMAX SINCE IT CAME OUT AND WILL TILL I CAN'T DRIVE. LIKE ANYTHING GOOD IT BECAUSE PART OF THE ROUTINE AND I HAVE HADE 3 CARS COMBINED WITH THE ZMAX AND MOBILE ONE SYNTHETIC THAT HAVE GONE 250000 AND BETTER ALL LOOK AND RUN LIKE THE DAY I GOT THEM. STAY UP TO DATE WITH SCHEDULED MAINTENANCE AND KEEP THE FLUIDS CLEAN AND YOU CAN LIVE PAYMENT FREE FOR A WHILE. USE IT IN THE YARD EQUIPMENT ALSO AND THEY ARE LIKE NEW ALSO UNTIL YOU GIVE IT TO YOUR SON-IN LAW.

Highly Recommended
From Anonymous of New Haven, Connecticut on 11/17/2019.

Very nice product. I have been using it for years.

Response from zMAX: Thanks for being a long-time zMAX customer!

RACER OWNER
From John Dostal of Richmond, Virginia on 10/25/2019.

Use to race with ED RACHANSKI BEEN A AIRCRAFT MECHANIC FOR 50 years GREAT STUFF
J.DOSTAL