Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 oz

Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 oz
Model: ROY11722
(317)
2 stores
1 Products

Product Details

Royal Purple Max-Clean is a state-of-the-art high performance fuel system cleaner that maximizes the performance of your fuel system. Max-Clean restores fuel economy by deeply penetrating deposits and cleaning injectors, carburetors, intake valves and combustion chambers. Royal Purple Max-Clean is EPA / CARB Compliant.Recommended for use in gasoline and diesel engines and can be used with all ethanol blends or biofuel. Max-Clean can be used in both 4-cycle & 2-cycle engines and will not harm vehicle emissions equipment. RECOMMENDED TREAT RATE Pour entire contents of bottle into nearly empty tank immediately before refueling, then install fuel on top of additive. One (1) can treats up to 20 gallons. For tank sizes outside of this range, use one (1) ounce per gallon. In two-cycle engines, use one (1) ounce per gallon. RECOMMENDED USAGE Max-Clean should be used every 10,000 miles or annually, whichever comes first.

Royal Purple Max-Clean 11722 Fuel System Cleaner Automotive Additive, 20 oz Reduce deposit-related engine knocking and pinging Prevent rough idle, hesitation and stalling Prevent premature spark plug fouling Restore horsepower an average of 2.6% Reduce hydrocarbon, NOx and CO emissions (on average 12%, 13% and 18% respectively) Restore fuel economy an average of 3.2%

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Last Updated: 2025-09-01 21:51:52

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Product Specifications

Technical Details

Manufacturer -
Brand Royal Purple
Item model number ROY11722
Color Multicolor
Weight -
Height -
Depth -

Additional Product Information

Product Id 587279
User Reviews and Ratings
4.7 (317 ratings)
4.7 out of 5 stars
UPC 641330117220

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Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 oz
Reviews: 317
app.ratings: (317)
Price:
$11.64 Visit walmart

Top User Reviews and Ratings (6 total reviews)

(5)
Reviewed in the USA on Aug 22, 2025

Had a bit of a rough idle and this eliminated it. I tried others and kept spending money.

Anonymous • Review provider: walmart.com
(1)
Reviewed in the USA on Aug 21, 2025

Did not work and OVERPRICED!

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Aug 05, 2025

no more stalling so far so good

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 10, 2025

This stuff is a miracle! Engine was misfiring, had another issue, but cleans everything throughout the fuel system

Anonymous • Review provider: walmart.com
(2)
Reviewed in the USA on May 03, 2025

I was not impressed did not notice a difference!

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 6 reviews
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