zMAX Multi-purpose Formula
zMAX Multi-purpose Formula
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zMAX

zMAX Multi-purpose Formula

4.9 stars out of 41 reviews
(4.9)|
41 ratings

Key item features

  • Extended Vehicle Life: zMAX Multi-Purpose Formula extends the life of your vehicle by improving lubricity and reducing carbon deposit build-up.
  • Enhanced Engine Efficiency: Helps restore combustion valve and piston ring sealing, resulting in a smoother running motor and more power, while reducing engine wear and emissions.
  • Fuel & Transmission Care: Cleans varnish in valve bodies for smoother shifting, lubricates injector systems, and conditions pumps and nozzles, reducing carbon residue from valves and pistons.
  • Smooth Power Steering: Keeps the steering system lubricated and smooth with an eco-friendly formula that includes an easy-to-read measurement indicator.
  • Trusted Performance: zMAX is the Official Micro-lubricant of Speedway Motorsports, trusted for over 80 years to save money at the pump and extend engine life.
  • Versatile Application: Suitable for use in gasoline or diesel engines, manual or automatic transmissions, and fuel systems, providing comprehensive vehicle care.
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Current price is $42.75$1.34/fl oz
Price when purchased online
  • Free shipping
  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $42.75
Your usuals, on your schedule
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Columbus, 43215
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Customer ratings & reviews

4.9 out of 5 stars
stars41 ratings25 reviews
How item rating is calculated
  1. 5 stars93% (38)
  2. 4 stars5% (2)
  3. 3 stars2% (1)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-3 of 25 reviews

Dec 15, 2025
Charles
5 out of 5 stars review

Verified Purchase

I have used this on many vehicles. I always believed it was worth it. Just purchased a newer vehicle and put it in. My gas mileage increased by 1/2 mile per gallon, so far

Incentivized Review
Helpful?1M9R2R048CMP923486980
Jan 28, 2026
Tar
5 out of 5 stars review

Verified Purchase

Better value and performance

Easy to use and better value than purchasing engine and gas treatments separately. Recommended and used by dealership but better value when purchased from Walmart. Keeps fuel intake and corrosion build up at bay.

Incentivized Review
Helpful?1M9R2R048CMP923486980
Dec 5, 2025
B
5 out of 5 stars review

Verified Purchase

Great product from Carol Shelby

Incentivized Review
Helpful?1M9R2R048CMP923486980