ZFS 10w40 Full Synthetic 4 stroke Motorcycle oil, exceeds JASO 2

Millers Oils
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Fully synthetic 4-stroke motorcycle engine oil. Formulated with 100% synthetic base fluids and the latest additive technology for maximum performance in 4 stroke motorcycles.


For motorcycle engines and transmissions where maximum performance is required. ZFS 10w40 has been specially developed for both road and track use in both air and water-cooled motorcycles.


  • Constant high friction profile for wet clutch performance exceeding the JASO MA2 specification.
  • A fully synthetic base oil and special additives to give high temperature endurance.
  • Optimization for four-stroke engines to give cleanliness and improved operation. Excellent oxidation resistance and valve train-wear protection. Seal compatibility.
  • Suitable for use in machines fitted with oil immersed wet clutches.


  • SAE Viscosity 10w40
  • Specific Gravity (at 15°C) 0.855
  • Kinematic Viscosity (at 100°C, cSt) 14.1
  • Kinematic Viscosity (at 40°C, cSt) 92.7
  • Viscosity Index 156
  • Pour Point (°C) <-25
  • Flash Point (°C) >200
  • Cold Crank Viscosity (cP) 7,000
  • TBN (mg KOH/gm) 6.64