Redline SI-1 Fuel System Cleaner (60103)

Red Line Oil
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Redline SI-1 Fuel System Cleaner


  • Safe for continual use.
  • Cleans pollution control valves.
  • Suitable for use with oxygenated fuel.
  • Reduces need for octane by up to two points.
  • Contains synthetic upper cylinder lubricant.
  • Cleans to nearly 100% efficiency in one treatment.
  • Use one bottle per tank for most effective treatment of neglected vehicle.
  • Also use in smaller doses for maintenance as one bottle treats up to 100 gallons.
  • Cleans injectors, carburetors, valve and combustion chamber deposits with a concentrated blend of the most powerful high-temp and low-temp detergents available.

Please Note:

  • This product can only be shipped within the Continental US and will only be shipped via GROUND service.


  • Universal

What's in the box?

  • 1 Bottle of Fuel System Cleaner


  • MFGR. Limited Warranty

Customer Reviews

Based on 1 review
Daniel Haines
Redline si1

I've used this for several years. Engines run stronger and I get better fuel mileage