zMAX 6oz Fuel Treatment
zMAX 6oz Fuel Treatment
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zMAX 6oz Fuel Treatment

4.7 stars out of 215 reviews
(4.7)|
215 ratings

Key item features

  • EXTEND THE LIFE OF YOUR VEHICLE: zMAX Engine & Fuel formulas are simple and easy to use. Micro-lubrication soaks into metal surfaces, which improves lubricity and reduces carbon deposit build-up while boosting performance and protecting vital vehicle parts.
  • ENGINE EFFICIENCY: Add zMAX Engine Formula to gain efficient combustion resulting in more power. Use the engine treatment at your routine oil change or every 6k miles to reduce engine wear, lower emissions and keep your engine running smoothly.
  • FUEL CONDITIONER: Pour zMAX Fuel Formula in the fuel tank to lubricate and maintain a clean fuel injector system. It conditions the pumps and nozzles reducing carbon residue from the valves and pistons while improving fuel efficiency and performance.
  • TRUSTED BY PROFESSIONALS & DEALERSHIPS: Stock zMAX in your garage to treat your car like a professional. From local repair shop mechanics to major car dealership groups, our formula is road tested and mechanic trusted. zMAX is eco-friendly and USA-Made.
  • REPUTABLE QUALITY AND PERFORMANCE: zMAX is proud to be the Official Micro-lubricant of Speedway Motorsports. Proven and trusted for over 80 years, zMAX helps save money at the pump and extends your engine s life.
Current price is $9.99$1.67/fl oz
Price when purchased online
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One-time purchase $9.99

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4.7 out of 5 stars
stars215 ratings100 reviews
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Showing 1-3 of 100 reviews

Oct 18, 2025
Thomas
Item details
Count: 1
Size: 12 fl oz
5 out of 5 stars review

Verified Purchase

I've been using this product in all my vehicles including my collector car for over 20 years. Never a problem only the sweet sounds of a beautiful engine.

Helpful?3D2SN471LD051327097083
Jun 30, 2025
Paul
Item details
Count: 1
Size: 12 fl oz
5 out of 5 stars review

Verified Purchase

You can hear your engine running smoother and straining less. The effect on mileage is harder to quantify since driving styles are biggest factor.

Helpful?3D2SN471LD051327097083
Apr 30, 2025
Reddog532
Item details
Count: 1
Size: 12 fl oz
5 out of 5 stars review

Verified Purchase

Zmax

This is a great product. I have been using it for years. My vehicles seem to be running with no issues. My truck has over 200,000 miles on it, and it still runs like it is brand new. It keeps the engine nice and clean. My engines run quietly.

Helpful?3D2SN471LD051327097083