Frequently Asked Questions

The engines are covered by the engine manufacturer. The owner is responsible for registering the engine with the appropriate engine manufacturer or distributor, as outlined in the Engine Owner’s Manual which accompanied your Wallenstein product. All warranty work must be done by one of the engine manufacturer’s approved servicing dealers.

Modern engines are designed to run most efficiently at full governed RPM. Therefore, our engine-powered equipment is designed to run most efficiently at the same RPM. Running engine-powered equipment at less than full throttle is counterproductive. Engines usually require a moment to warm up enough to accept full throttle and load.

The manufacturers of the diesel engines we use all recommend low or ultra-low sulfur fuel. A maximum of 20% biodiesel (B20) is also recommended. The quality of the fuel is important.

Always keep the fuel tank clean. Always refill the fuel tank from a clean container using fresh fuel from a reputable, high volume retailer. Please see your engine owner’s manual for specifications.

The manufacturers of the engines we use all recommend a high quality, detergent mineral oil. Specifics such as viscosity, vary with oil manufacturer and climate. Please see your engine owner’s manual for specificifications and the use of synthetic oils.

The manufacturers of the gasoline engines we use all recommend regular unleaded gasoline, with a minimum octane rating of 87. A maximum of 10% ethanol (E10) is also allowed.

The quality of the fuel is what is important. Always keep the fuel tank clean. Always refill the fuel tank from a clean container using fresh fuel from a reputable, high volume retailer. Please see your engine owner’s manual for specifications.

The engine versions we use do not have a reduction gearbox. However, most of the engine models we use are available with one. Honda mentions them in the owner’s manuals because the manuals cover all versions of each engine.

The two oil fill holes are in the GX series single-cylinder engines. These engines can be mounted many different ways. Honda has provided two filler holes and two drain plugs to ensure that one of each is accessible.

For the filler holes, the grey cap has the dipstick. The black cap is a plug. The GC engines only have one plug.