Covers more than 100 models by 15 manufacturers. Designed with debris- and air-management features that enhance durability and performance plus the Oil Guard™ system that improves lubrication, maximizes engine life and extends oil change intervals to save money. We have currently seen the Oil Guard on the Vanguard 810 EFI, Vanguard Big Block 32 hp, and Vanguard Big Block 37 hp.Energetic and quick starting, these powerhouse engines feature a number of advanced technologies and integrated. The Frontier 6圆 amphibious XTV is powered by a 4 cycle OHV V-Twin gasoline EFI engine, electronic ignition, air cooled Kohler Command Pro engine. In some cases, the fuel pump gets activated when the fuel pressure is lower than 2PSI. Vanguard 810 efi problems It will be interesting to see what comes next and if the engine is offered on any other brands of mowers.
