Seller notes

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