These are high performance engine oils with less than 0.1% weight ash content, recommended primarily for 2-stroke gas engines but suitable for certain 4-stroke gas engine applications, minimizing combustion chamber deposits, spark plug deposits and port plugging.

Products under this include

• SENTRON ASHLESS 40 (0.05 wt%) is a high performance, long-life SAE 40 stationary gas engine oil. It minimizes combustion chamber and spark plug deposits, as well as port plugging.

• Minimizes combustion chamber and spark plug deposits
• Minimizes port plugging

Recommended primarily for 2-stroke cycle gas engines but may be used in certain 4-stroke cycle gas engines