Archoil AR9100 Friction Modifier

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  • $44.95
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"Attention Power Stroke Owners - AR9100 Friction Modifier ​is 100% GUARANTEED to eliminate STICTION in diesel vehicles with HEUI injector technology within 100 miles or your money back!"    - Bill Hewitt


  • AR9100 eliminates hard/cold start issues caused by HEUI injector misfires in 6.0L & 7.3L Power Strokes
  • AR9100 is suitable for use in all diesel and gasoline engines
  • AR9100 forms a solid boundary lubricating film to improve performance and protect engines, gearboxes and hydraulic systems


  • Use one 16 oz bottle to treat a Power Stroke
  • Use 1.2 oz of AR9100 per quart of engine oil
  • Use 1.2 oz of AR9100 per quart for limited slip differentials
  • Treat motorcycles, wet clutch or not, at 1.2 oz per quart
  • Treat gear oil, hydraulic oil and power steering systems at 3.2 oz per quart 


  • Fixes HEUI injector problems (Power Stroke and others)
  • Increases power and response
  • Reduces friction and provides anti-wear, extreme pressure and anti-corrosion protection
  • Reduces engine noise and vibration
  • Protects engine during cold starts
  • Cleans and prevents sludge/varnish deposits
  • Extends oil drain intervals

Archoil AR9100 Tech Sheet