AMSOIL Synthetic Stationary Natural Gas Engine Oil delivers superior protection in stationary natural gas engines calling for an SAE 40, low-ash lubricant. Its shear-stable formula qualifies it as a multi-grade 20W-40 so it can be used over a broad ambient temperature range, reducing the need for seasonal oil changes.

AMSOIL Synthetic Vehicular Natural Gas Engine Oil delivers superior protection and performance in vehicular and mobile natural gas engines calling for an API CF 15W-40 low-ash lubricant.