Rock Oil City 4s is the most advanced four stroke scooter lubricant available. Rock Oil City 4s is a complex blend of pure synthetic base stocks, coupled with state of the art additive technology. During extensive development testing, Rock Oil City 4s proved to be an oil for extremes. Its wide viscosity range gives ultimate protection from cold start conditions to the severe heat of competition, whilst the complex range of additives significantly reduces wear and keeps your engine internals clean.

  • Outstanding thermal and shear stability.
  • Exceptionally low volatility.
  • Excellent control of engine deposits, blow-by contamination, and superb wear protection.
  • Significantly reduces friction, releasing full engine power and is ideal for all 4 stroke scooter engines.

City 4s meets or exceeds the following specifications:

  • JASO MA / MA2
  • API SL