</font><font color="blue" class="small">( Pan Heater: Requires to be glued on [epoxied], the pan surface requires to be clean so it will stick/hold, the paint on the pan has to be adhered well....cause that is what the glue sticks to. If the paint turns loose? If the glued on pan heater goes bad and needs to be replaced. I guess you hammer, grind, pick it off trying not to damage the oil pan on youre back?? I have seen a couple of pan heaters come loose around the edges?? dont know why? I guessed it was because both engines had a oil leak...and the oil did it?....beats me )</font>
I've only had experience with the Wolverine, and it's all been good. My guess is that if you've seen pan heaters come loose, they simply weren't installed right. I use a wire wheel on an angle grinder to take a spot on the pan down to bare metal. Wolverine provides all the rest of the installation essentials, including silver silicone to seal the edges. Nothing CAN get underneath. I've installed three already, and I drive through some pretty rough stuff. Ain't lost one yet.
//greg//