Paul 2007
I use Wolverines on all my vehicles, Wolverines are expensive.
A Wolverine Pad can be done for around $100.00 bought separate, I see Kats stick on heaters (same principle as Wolverine) for $25.00 USA currency at places like Northern Tool online.
These peel and stick on pads are great, plug and unplug, no crawling under to put on or take off, very effective cold weather oil flow with no burning.
Wolverine guarantees the oil will not burn even if the vehicle sits in extreme cold temps long term before being plugged in with heat pad. There are some pan heat systems that demand the heat pad be plugged in immediately at engine shut off when oil is already hot or oil will burn or scortch if allowed to get extremely cold before plugging pad in. Kats and Wolverine are safe, I sleep at night with my heat pad plugged in knowing it is engineered not to burn the oil with very low wattage per sq inch pad.
In my research Kat's peel and stick system is identical to Wolverine, infact Kats impresses me because their pads are actually bigger than Wolverine with the same wattage as Wolverine which disperses the heat more evenly on pan. I would prefer that and plan on ordering some for future vehicles.
Both products have charts to tell you what wattage to use according to sump campacity to ensure you dont overheat. Stay in the range of watts according to oil sump capacity and system will be safe.
I use my heat pads on auto and manual transmissions too, you need about half the wattage for trannys.
A 125 watt heat pad will warm 4 litres oil, 250 watt up to 11 litres oil, very economical, I use them with block heater for optimum warm start in extreme cold. Easy install, great cold start benifits, no hassle except plugging them in and unplugging.
Cyprs