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

I ran these on my 28 24/7 for the 6 years I owned her with no issues (and the current owner is still doing so). My boat was in the water all the time and I had them plugged into the gfi outlet in the engine room. For me with the 6Bs (model 40 heater on each engine) it eliminated my at-start smoke and left my engine temps right at 110 degrees at all times. A few nice side effects were keeping the engine room dry and rust free and oil changes were easy with the warm oil. I also had one installed on my genset but I very rarely used it since the heaters on the engines kept the whole engine space warm "Gabby Girl"

Engine Oil Heaters Eliminate Cold Starts

Better than Block Coolant Heaters & EPA Friendly

Attach a Wolverine engine heater to your vehicle engine's oil pan, and never again worry about cold starts. Wolverine engine oil heaters put heat where it counts - IN THE OIL - for improved crankability in the most frigid weather. Tested to 80° below 0°.

Unlike block, dipstick or other types of engine heaters, Wolverine engine oil heaters evenly spread heat throughout the vehicle engine from the bottom up, heating the oil to near operating temperature. The result: Easier Starting & Less Engine Wear.

The Wolverine Engine Heater Advantage

  • Fast, easy and inexpensive installation - peal-N-stick
  • Improves crankability at the coldest extremes
  • Uses up to 50% less electricity than conventional block heaters
  • Virtually eliminates cold-start wear
  • Used in US and foreign military and government applications - #98-752
  • Provides immediate lubrication
  • Heats internal components more thoroughly than other engine heaters
  • Exclusive two-year limited warranty protects your investment

Wolverine engine oil heaters also work for a number of other cold weather applications: Hydraulic & Heating Oil Tanks, Livestock Water Tanks, Farm Tractors, standby generators...

Wolverine Engine Heaters make sure your car starts when you need it the most.

From your driveway to the racetrack, Wolverine Engine Heaters gets everyone to the finish line even in the coldest weather.

Virtually eliminates start up smoke on diesel engines marine EPA friendly.

EPA Friendly reduces diesel emissions for heavy equipment.

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Wolverine Engine Heaters