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Additives at JC Whitney
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1 - 20 of 31 products   |  Go to page 1 2 Next   |  Show All 
CATALYTIC CONVERTER CLEANER/DEODORIZER
CATALYTIC CONVERTER CLEANER/DEODORIZER
For all catalytic converters.
Customer Review:Read all 3 reviews
Retail: $18.69
Our Low Price: $11.99 
You Save: $6.70
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SOLDER-IT™ BATTERY ADDITIVES
SOLDER-IT™ BATTERY ADDITIVES
Increases battery output for easier starts in all temperatures.
Customer Review:Read all 5 reviews
Retail: $17.02 - $116.65
Our Low Price: $9.99 - $69.99 
You Save: $7.03 - $46.66
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DYNO-TAB® FUEL POWER BOOSTER TABLETS
DYNO-TAB® FUEL POWER BOOSTER TABLETS
Does the work of 5 liquid additives to increase HP up to 3.5% and fuel economy up to 10.3%!
Retail: $36.54
Our Low Price: $19.99 
You Save: $16.55
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DYNO-TAB® FUEL POWER BOOSTER TABLETS
DYNO-TAB® FUEL POWER BOOSTER TABLETS
Does the work of 5 liquid additives to increase HP up to 3.5% and fuel economy up to 10.3%!
Customer Review:Read all 4 reviews
Retail: $4.99 - $15.21
Our Low Price: $4.99 - $5.99 
You Save: $9.22
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PRO BLEND® MORE MILEAGE PLUS GAS BOOSTER
PRO BLEND® MORE MILEAGE PLUS GAS BOOSTER
Fight the cost of gas and increase power and performance—get up to 30% more miles per gallon! Helps restore lost power and move like new again.
Customer Review:Read all 3 reviews
Retail: $21.62 - $50.26
Our Low Price: $15.99 - $39.99 
You Save: $5.63 - $10.27
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PRO BLEND® ENGINE OIL COOL
PRO BLEND® ENGINE OIL COOL
Instantly cools engine oil up to 57° and radiator water up to 7°. Fights friction and heat to help your air conditioning blow cooler, engine run quieter and oil last longer. Doubles the life of lubricated parts and ensures faster cold weather starts.
Retail: $17.28
Our Low Price: $11.99 
You Save: $5.29
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DYNO-TAB® FUEL POWER BOOSTER TABLETS PLUS INJECTOR CLEANER
DYNO-TAB® FUEL POWER BOOSTER TABLETS PLUS INJECTOR CLEANER
Does the work of 5 liquid additives to increase HP up to 3.5% and fuel economy up to 10.3%!
Customer Review:Read all 2 reviews
Retail: $24.09
Our Low Price: $6.99 
You Save: $17.10
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ZMAX MICRO-LUBRICANT, ENGINE AND FUEL TREATMENT
ZMAX MICRO-LUBRICANT, ENGINE AND FUEL TREATMENT
Zmax Micro-Lubricant, Engine And Fuel Treatment helps increase gas mileage, Improved performance, extended engine life, reduced emissions, and increased horsepower.
New
Our Low Price: $19.99 - $32.99 
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PRO BLEND® STOPS™ OVERHEATING FOR COOLANT SYSTEMS
PRO BLEND® STOPS™ OVERHEATING FOR COOLANT SYSTEMS
Reduces water temperature up to 40° instantly to dramatically extend engine life. Great for vehicles operating under extreme heat conditions (towing, rock crawling, sitting in traffic, climbing, etc.). Maintains coolant temperature at safe 180° to 210°.
Retail: $27.46
Our Low Price: $19.99 
You Save: $7.47
  BUY Stops Overheating for Coolant Systems  
STAR*TRON GASOLINE ADDITIVE
STAR*TRON GASOLINE ADDITIVE
Increases power and performance and stabilizes fuel for up to one year.
Retail: $21.39
Our Low Price: $11.99 
You Save: $9.40
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STAR*TRON TANK CLEANER
STAR*TRON TANK CLEANER
Enzyme cleans gasoline and diesel fuel tanks better than a cleaning service!
Retail: $54.75
Our Low Price: $31.99 
You Save: $22.76
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PRO BLEND® STOPS™ OVERHEATING FOR RADIATORS
PRO BLEND® STOPS™ OVERHEATING FOR RADIATORS
Cools like ice water when added to radiator! Reduces water temperature up to 28°. Not only lowers coolant temperature, it also reduces rust and corrosion, stops some leaks, cleans cooling system and removes scale deposits.
Retail: $22.89
Our Low Price: $15.99 
You Save: $6.90
  BUY Stops Overheating for Radiators  
PRO BLEND® TRANS COOL
PRO BLEND® TRANS COOL
Fights friction and dramatically improves lubrication when vehicle is towing climbing, idling in traffic or traveling at high speeds for long periods. Reduces automatic transmission fluid temperature up to 57° to stop excessive wear.
Retail: $17.82
Our Low Price: $11.99 
You Save: $5.83
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PRO BLEND® NITRO POWER PERFORMANCE FUEL TREATMENT
PRO BLEND® NITRO POWER PERFORMANCE FUEL TREATMENT
Dramatically increases engine torque and horsepower—important when your 4WD, tow vehicle, motor home or performance vehicle needs better off-road throttle response and overall towing ability. Instantly adds up to 25 horsepower and increases octane 7 to 14 points when added to premium unleaded or performance gasoline.
Our Low Price: $8.99 
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PRO BLEND® NITRO POWER FAST FORWARD FUEL TREATMENT
PRO BLEND® NITRO POWER FAST FORWARD FUEL TREATMENT
One of the most powerful additives available instantly adds up to 30+ horsepower. Also significantly increases engine midrange torque and power, cools exhaust temperatures and protects against detonation, preignition and dry fuel. Improves vehicle's overall performance and extends the life of its engine and parts!
Customer Review:Read the review
Retail: $22.95
Our Low Price: $15.99 
You Save: $6.96
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RUN-RITE SLEDGEHAMMER FUEL SYSTEM ULTRA TREATMENT
RUN-RITE SLEDGEHAMMER FUEL SYSTEM ULTRA TREATMENT
Hit your ride with the "Hammer" and get guaranteed improved fuel economy! Sledgehammer Fuel System Ultra Treatment also helps reduce emissions, restore lost engine power and performance and improve acceleration! Rapidly removes deposit from fuel injectors, intake valves, ports and combustion chambers and is free of damaging alcohol, methanol, aromatic solvents and chlorine.
New
Our Low Price: $19.99 
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STAR*TRON DIESEL FUEL ADDITIVE
STAR*TRON DIESEL FUEL ADDITIVE
Increases power and stabilizes fuel for up to two years.
Retail: $26.11
Our Low Price: $14.99 
You Save: $11.12
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ZMAX MICRO-LUBRICANT MECHANICS FORMULA
ZMAX MICRO-LUBRICANT MECHANICS FORMULA
Zmax Micro-Lubricant Mechanics Formula helps maintain gas mileage in newer cars, and helps improve or restore gas mileage in older cars, by virtue of reducing engine deposits. They improve the performance of the vehicle and provides extended engine life.
New
Our Low Price: $39.99 
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FUELBOSS™ FUELMASTER FX FUEL SUPPLEMENT
FUELBOSS™ FUELMASTER FX FUEL SUPPLEMENT
Provides results for about 2000 miles
Retail: $13.96
Our Low Price: $7.49 
You Save: $6.47
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NOS® OCTANE BOOSTERS
NOS® OCTANE BOOSTERS
One simple treatment can boost the octane rating in your unleaded gas by 2-7 points!
Retail: $24.44
Our Low Price: $13.99 
You Save: $10.45
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