Add 12oz zMAX Engine Formula to engine oil after each oil change. Will not overfill reservoir. Add 12oz zMAX Fuel Formula to fuel tank (gasoline or diesel) with at least 1/4 tank of fuel. Use every 6 months or 6,000 miles.
Average Rating: (From 24 Reviews):
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GREAT!!!
From Tim B of Pittsburgh, Pennsylvania on .
Buy this and add it to your older model vehicles. Makes a huge difference in performance.
ZMAX
From Anthony Wong of RCH CUCAMONGA, California on .
Egg-cellent. Used products continuously for 20 years primarily for SMOG. I have over 450 K miles on my Toyota Camry (Original Engine) since I started using the 4 item box.
high rec.
From Thomas Balser of Paulding, Ohio on .
outstanding performance I have used it for years.... currently have a 2009 toyota highlander with 185,000 miles and have never had any problems .,.. only regualar maintenace same for a 2003 Toyota we had previoulsy!
Great product
From Bill Broda of Greenville, Wisconsin on .
Zmax is great, my car runs quieter and cooler.
Slippery is always better!
From Brock of Kingwood, Texas on .
Easily added to the fuel tank and oil reservoir. Drove around to heat up and mix the ingredients thoroughly. No issues with anything. Trying not to be biased here but seemed like my engine ran a little smoother. So far so good!
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