Cold lube oil can become very viscous, which may prevent the oil from protecting engine components. Hotstart’s OW oil heater is threaded into the engine’s oil pan to keep the oil warm and liquid. When the engine is started, warmed oil flows to the critical engine components, which eases engine starts and reduces engine wear.
The OW oil preheaters are available in various voltages and range from 75 to 500 watts. These oil heaters are available for weathertight applications, with or without a thermostat, and can also be used to heat diesel fuel.