Max-Clean Fuel System Cleaner and Stabilizer

$17.67 $12.79
(You save $4.88)
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  • Max-Clean Fuel System Cleaner and Stabilizer

Royal Purple’s Max-Clean is a state-of-the-art synthetic fuel system cleaner and fuel injector cleaner that deeply penetrates and cleans injectors, carburetors, intake valves and combustion chambers to restore fuel economy and reduce emissions.  




  • Improve fuel economy an average of 3.2 percent
  • Restore horsepower an average of 2.6 percent
  • Reduce hydrocarbon, nitrogen oxide (NOx) and carbon monoxide (CO) emissions (on average 12, 13 and 18 percent respectively)
  • Prevent rough idle, hesitation, and stalling
  • Prevent premature spark plug fouling
  • Reduce deposit-related engine knocking and pinging
  • Stabilizes fuel during off-season and storage
  • Superior corrosion and oxidation inhibitor





Pour entire contents of 20 oz. can into a nearly empty tank and refuel. One (1) can treats up to 20 gallons. For tank sizes outside of this range, use one (1) ounce per gallon. In 2-cycle engines, use one (1) ounce per one (1) gallons.  

I recently purchased a 2006 Jeep Wrangler with 60,000 miles and it had a slight hesitation on acceleration, I attributed it to not being driven much. I put in one bottle of the Max-Clean and within 1/2 tank the hesitation was gone. Another employee drives a 1999 Toyota Corolla with over 200,000 miles. He stated that the car had sluggish throttle response. He put one can of Max-Clean and once the tank with the Max-Clean was finished, so was the sluggish throttle response. Excellent product!! -David Wells, Parts Coordinator Subaru Rally Team USA/Subaru Rallycross Team USA


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  • 5
    Max-Clean Fuel System Cleaner

    Posted by Len Garrett on 15th Aug 2022

    I've used this product for more the 15 years. I have no complaints, it cleans my fuel system and restores the power I am use to. I won't use anything else.

  • 5
    Works Great!

    Posted by Jared Aldrich on 30th Mar 2022

    I used this product on my 2019 Chevy Silverado with 47k on it and it seems to be running smoother and I have noticed that I am getting almost 1 mpg better too! Great work Royal Purple!