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CG40 Mid Ash Stationary Gas Engine Oil


SENTRON CG 40 (0.93%wt ash) is designed specifically for 4- stroke cycle gas engines running in severe service such as co- generation, sewage or sour gas or low halogen landfill gas operations

SENTRON stationary gas engine oils (SGEOs) are premium performance, long life engine oils specially formulated to lubricate stationary gas engines and compressors. SENTRON’s extended drain intervals can mean lower maintenance costs, less used oil to dispose of and a more efficient and profitable operation.


SENTRON’s exceptional performance is especially important in the severe service conditions common in compression, power generation and combined heat and power applications. Its outstanding anti-wear protection in combination with low tendency for deposit build-up helps to minimize bore polish and wear of cylinder liners and wear of piston rings.


That can mean:

  • Longer service intervals

  • Less backfiring

  • Cleaner engines with less wear

  • Fewer service calls

  • Less downtime


SENTRON stationary gas engine oils are formulated with ultra pure, high quality base oils and highly advanced additive technologies to help deliver a combination of extended oil life, extended drain intervals and excellent control of engine deposits. Offering exceptional protection against wear and corrosion, SENTRON helps provide worry-free operation, increased engine durability and engine life, which can lead to a reduction in overall operating costs.


SENTRON stationary gas engine oils span the typical levels of sulphated ash and SAE viscosity grades required by gas engine manufacturers. Moreover, they have a proven track record of successful use under a wide range of operating conditions.

Features & Benefits

Longer oil life provides long-lasting equipment protection

  • Exceptional resistance to breakdown caused by oxidation and nitration.

  • Helps extend engine life by reducing varnish, sludge and carbon deposits.

  • Helps improve engine performance.


Extended drain interval can reduce maintenance and provide savings

  • SENTRON LD 8000 can significantly extend oil drain intervals when compared to leading competitive conventional SGEOs. The extended drain interval helps to:

    • Reduce downtime and maximize production availability.

    • Lower operating costs by reducing maintenance costs.


Outstanding anti-wear/anti-scuff protection helps to:

  • Control and minimize valve recession.

  • Reduce wear on piston rings, cylinder liners and bearings, prolonging engine life.

  • Reduce operating and maintenance costs.


Keeps engine parts clean by:

  • Minimizing ring zone and valve stem deposits.

  • Minimizing port blockage in 2-cycle gas engines.

  • Improving engine lubrication by maintaining clean oil-ways.

  • Maximizing the time between major engine overhauls.

  • Preventing corrosion


Extremely low oil volatility helps to:

  • Improve work environment through absence of oil odour.

  • Minimize oil consumption.

  • Reduce excessive engine combustion zone deposits for higher efficiency and reduced de-rating of the engine.


SENTRON stationary gas engine oils are premium performance engine oils specially formulated to lubricate large natural gas engines and their integrated compressors, running on natural gas. Specific SENTRON oils also meet the more severe operational needs of co-generation, biogas, sewage gas, coal bed methane and halogen landfill gas operations. SENTRON SGEOs can be used in reciprocating compressor crankcases where an OEM allows an SAE 40 oil. SENTRON can also be used in compressor lubricators as a compressor cylinder lubricant. TECH DATA SENTRON™ STATIONARY GAS ENGINE OILS SENTRON stationary gas engine oils cover the three main levels of sulphated ash required by natural gas engine manufacturers


Certified Petro-Canada Product

Duramach partner with Petro-Canada to supply world-class advanced lubricants, specialty fluids and greases developed from over 30 years of research and development.


Petro-Canada lubricants continue to perform beyond expectations in virtually every industry around the globe. 

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