Shell Mysella S5 S is a premium gas engine oil, formulated for use in engines burning non-natural “sour” gas,
such as biogas, sewage gas and landfill gas.
Shell Mysella S5 S has been specially developed to provide extended oil drain intervals in engines running on
biogas, sewage gas and landfill gases. Shell Mysella S5 S uses a formulation which has been optimised to resist
the corrosive and oxidative effects of sulphuric and halogenic acids which are often present in these gases.
Thanks to its low ash content, Shell Mysella S5 S minimizes the contribution of the lubricating oil to combustion
chamber deposits.


Long Life Low Ash Sour Gas Engine Oil

Extended oil life
Thanks to its good resistance to oxidation and nitration, and the strong base additives in its formulation, Shell Mysella S5 S will provide an extended oil life in comparison to standard gas engine oils.

Note that oil life will be dependent on the level of contaminants in the gas.

Engine protection
Shell Mysella S5 S has good anti-wear properties and offers superior control of oil related deposits. Qualified as a low ash oil, the contribution of oil ash to combustion chamber deposits will be minimized.

Shell Mysella S5 S is compatible with engines equipped with exhaust emission catalysts for CO, NOx and formaldehyde.

System efficiency
In engines utilising crank case gas recirculation Shell Mysella S5 S is expected to reduce fouling and clogging of charge air coolers.

Additional information

Weight 190 kg
Dimensions 58 × 58 × 89 cm



CAT CG132, CG170, CG260

Unit Price

R98.33 / 209 Litres


Transport, Mining & Construction, Agriculture