Engine Treatment Gl Marvel

Marvel Mystery Oil
Can be added to gasoline or crankcase oil
Provides top cylinder protection to extend engine
life, improve performance & increase gas mileage
Cleans the entire fuel system, including injectors
Lubricates to reduce friction & minimize cylinder
wear and scoring, prevents sticky valves
Dissolves & retards build-up of dirt, sludge,
varnish, gum and carbon deposits

  • Model: 300030
  • Manufactured by: United Marketing, Inc

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