The Most Trusted Engine Oil Heater
For Cold-Weather Starts

Eliminate Cold Start


A "cold start" is a "dry start". The colder it gets, the longer it takes for oil to circulate through the engine. This occurs anytime the engine sits for 1 week or longer. Experts believe that one start is equivalent to 500 miles of normal driving. After a routine oil change it can sometimes take up to one minute before oil pressure is achieved. The only way to totally eliminate "dry start" or "cold start" wear is to achieve oil pressure and lubrication before start-up. The SAE has found that oil additives and "special coatings" won't eliminate metal to metal contact at start-up. Only oil pressure can keep the bearing separated enough to prevent metal to metal contact. Residual oil is also not enough to protect the engine. One of the major benefits of oil heaters and synthetic motor oils is improved oil pumpability in the winter. These products reduce the winter time problem and are great for a cold diesel start.

Store tractors inside tool sheds, barns, garages or other suitable locations that are heated or warmer than outside temperatures. Only a few degrees warmer temperature can help eliminate cold starts. The warmer the battery is, the more power it can provide to the starter motor to crank the engine. The warmer the engine oil is, the thinner it will be and have less resistance to moving engine parts. Make sure you are using the proper viscosity oil recommended for your engine for cold temperatures. If you cannot store engines inside or in a heated area, install a block heater on the engine. To save time and electricity, put the block heater on an electrical timer set to come on a couple of hours before you plan to start the engine.

A Wolverine Engine Oil Heater will heat up and thin out your oil for quick starts in cold weather reducing wear and tear on the engine thus eliminating  cold engine start.


Dear Sir,

Some months ago I purchased a sump heater from you. I can tell you its fantastic. I live in Western Australia in the wheat belt where in winter the temp drops only to -3 but the oil in my engine is nice & warm, The engine heats to op temp so much faster now saving me lots of $$$$ on petrol i.e. running a rich mixture to op temp. The EFI unit only puts in the fuel required so the faster warm-up the more fuel I save. Great product & thanks a lot...


Andrew Camden

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