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Kreen All-in-One Gas & Oil Treatment

Provides four solutions in one: improves compression, reduces oil consumption, cleans injectors and increases gas mileage. Made in the U.S.A. 50-State VOC Compliant.

Available In

Liquid: 1qt, 1gal, 5gal***, 55gal***

Part Numbers

  • 1qt (# KR161)
  • 1gal (# KR011)
  • 5gal (# KR051)
  • 55gal (# KR551)
***Additional Hazmat shipping charges.


Quickly dissolves sludge, gum and varnish

Softens and Removes

Treat excess carbon around valve stems and piston grooves


Thoroughly cleans entire crankcase, injectors and oil lines
  • Agriculture
  • Automotive
  • Aviation
  • Maritime
  • Military
  • Transportation
  • Engine tear downs
  • High mileage cars
  • Gas mileage performance
  • Emissions testing

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