Description
One 12 fl oz STP 1 Tank Tune Up Fuel Additive reduces hydrocarbon emissions up to 50% and protects and maintains your catalytic converter
Reduces the release of harmful exhaust emissions into the environment
Cleans dirty oxygen sensors to help prevent failure and malfunction
Helps pass emissions test and improves fuel economy
Deep cleans fuel intake system including fuel injectors, intake valves, cylinder head and piston tops
Helps quiet rough running engines and eliminates hesitation and hard starts
Reduces knocking and cleans spark plus
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