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SI-1® Complete Fuel System Cleaner

World's best fuel cleaner? Many say so. We say try for yourself and see.

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SI-1® Complete Fuel System Cleaner

  • Cleans injectors, carburetors, valve and combustion chamber deposits with a concentrated blend of the most powerful high-temp and low-temp detergents available
  • Cleans all forms of fuel injectors, including GDI
  • Enhances fuel stability; reduces gum and varnish formation
  • Use one bottle per tank for most effective treatment, cleans to nearly 100% efficiency in one treatment
  • Reduces need for octane by up to two points
  • Contains synthetic upper cylinder lubricant
  • Cleans pollution control valves
  • Also use in smaller doses for maintenance as one bottle treats up to 100 gallons
  • Suitable for use with oxygenated fuel
  • Safe for continual use
  • Same chemistry is also available in 4oz dosage as Complete Fuel System Cleaner - Powersports
$11.95
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These products offer unprecedented value with concentration to treat larger fuel volumes at a lower cost

Available Sizes

15oz 60103
5 Gallon* 60106

*Only available from our dealers