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Johnsen's Performance Chemicals
FUEL ADDITIVES
- FUEL INJECTOR CLEANER
- FUEL INJECTOR & CARBURETOR CLEANER
- GAS TREATMENT
- OCTANE BOOSTER
- ETHANOL FUEL TREATMENT & STABILIZER
- FUEL STABILIZER
FUEL INJECTOR CLEANER
- Super concentrated formula to improve engine performance
- Cleans fuel injectors
- Allows vehicles to start easier, idle smoother and accelerate without hesitation
- Easy Pour for Standard and Capless Fuel Tanks
FUEL INJECTOR & CARBURETOR CLEANER
- Clean fuel injectors and carburetors to help improve fuel economy and performance
- Helps reduce exhaust emissions
- Easy Pour for Standard and Capless Fuel Tanks
GAS TREATMENT
- Dissolves sludge that accumulates in the carburetor, intake valves, and manifold
- Easy Pour for Standard and Capless Fuel Tanks
OCTANE BOOSTER
- Formulated to help stop kicking caused by low octane fuels
- Easy Pour for Standard and Capless Fuel Tanks
ETHANOL FUEL TREATMENT & STABILIZER
- Super concentrated fuel additive formulated to counteract the harmful effects of Ethanol in fuel
- It will stabilize fuel, prevent corrosion caused in the fuel system by ethanol
- Helps to remove moisture to prevent phase separation
- Will clean injectors and other fuel system components
FUEL STABILIZER
- Specially formulated to keep fuel fresh and clean during storage periods
- It will aid in quick and easy starts after storage
- Safe for use in all gasoline
Michael K.
Reviewed in the United States on March 1, 2025
I was unfamiliar with this company’s product but it seems to do the job. Doesn’t supply a great deal of extra power but there is absolutely no engine ping with poor California gasoline.
dluxdlitz
Reviewed in the United States on February 6, 2025
My car has a "piggy-back" tunning device attached to it and to get the most power out of it I have to use an octane booster even with premium fuel. This is one of the best products I've found, and at the dozen price is a really great value. I can actually feel the increase in power when I use this product where I have not been able with other products. I've not tried it with regular fuel yet, but I'm sure it would give at least the same power of premium fuel. I've not tried it because the difference between regular and premium hasn't reached a delta point that would make regular more affordable, at least not where I live.
Carolyn M. Carpenter
Reviewed in the United States on July 23, 2024
Just used my first bottle. It seems good; no pings or knocks. Car runs smoothly.
Charles Spate
Reviewed in the United States on November 6, 2024
Works as expected. Great price.
M. Sieg
Reviewed in the United States on October 6, 2024
I like that it is a older American company. Also it has a fair price for what you get.
Steve C.
Reviewed in the United States on October 18, 2024
Easy to use at fill up , I have 2 cars that call for premium fuel . One turbo 4 cylinder and a 20 year old Mercedes V-8 and no signs of pinging on either. Sometimes when I order the 12 pack it is 6oz bottles and sometimes it’s 12 oz bottles . The 6 oz bottle states that it’s super concentrated.
Richard E. Spoonemore
Reviewed in the United States on September 1, 2023
Great product …., use it in my Harley, my Mercedes and everything that requires 93 octane….. then use 87 octane gas…… saved a lot of money!
Robert Marchese
Reviewed in the United States on November 23, 2023
Perfect for my car that runs premium gas only. Add one bottle to the tank and fill with regular unleaded. Car runs great . No issues. I bought a whole case. Very reasonable prices.
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