• Guardian Sigma 15W-50 Semi-Synthetic - 1 litre

Guardian Motorcycle Semi Synthetic Engine Oils

GUARDIAN Motorcycle Semi Synthetic engine oils are premium grade 4 stroke engine oils that meet the

exacting demands of modern high performance motorcycle engines.


Advanced additive, high detergent formulation ensures maximum engine component protection and

superior resistance to deposits and corrosion, resulting in extended engine life and optimum performance

under the most arduous of conditions

Rapid cold start circulation, providing maximum protection during initial start up

Passes crucial clutch friction test required to meet the JASO MA/MA2 specifications, allowing safe,

predictable use in wet clutch applications

Reduced phosphorous level to ensure excellent compatibility with catalysts now fitted to the latest


The Guardian Motorcycle range of engine oils meet or exceed the following




Typical Physical Characteristics

Viscosity Grade (SAE) 10W-30 10W-40

Density @ 15C 0.872 0.871

Viscosity @40C (cSt) 76.7 102.4

Viscosity @100C (cSt) 12.1 14.8

Viscosity Index 154 149

Appearance Amber Amber

NOACK Volatility 11% 11%

Product Code 01148 03400

Guardian Sigma 15W-50 Semi-Synthetic - 1 litre

  • Brand: Rock Oil
  • Product Code: Guardian Sigma 15W-50 Semi-Synthetic 1 litre
  • Availability: 2-3 Days
  • £0.00