SAE 15W-40
Geoguard 600 Mid-Ash is designed to provide superior performance in two and four cycle engines not requiring ashless type oil. It is very beneficial in four cycle engines that use ash containing oils to retard the wear in the control valve and valve stem areas. It is useful on engines operating on natural gas or landfill gases. This medium or mid range ash oil contains a unique additive combination of a detergent/dispersant.
