FILTRATE GEAR OIL
Filtrate Extreme Pressure Gear Oil for back axles is now officially approved for use in Morris and Wolseley cars. This oil withstands a tooth pressure of up to 20,000 lb. per sq. in., against approx. 5,000 lb. per sq. in. of normal gear-lubricants made by older processes. This special Filtrate is priced at 8s. 4d. per gallon.