My experience with block heater is that if you get your vehicle 'use to it' you will be stuck doing it. YMV but that seems to be also the opinion of my dealer who told me exactly that when I recently bought my JK Rubicon.Can anyone tell me if it is ok or advisable to leave the block heater plugged in all night. Should I set it up on a timer?
X2. I'm also a pilot and have had this discussion with the co-owners of our Grumman. We use the block heater as little as possible and I don't have one on my Jeep at all. BTW, why would you ever get rid of a Maule? If I had one of those, I'd have it forever. It's kind of like a flying Jeep.I am a pilot and used to own a Maule which is considered a north country bush plane. Engine block heaters are a huge topics in aviation because the engines are aluminum with steel cylinders. (The expansion coefficients are different for the different metals.) I never started my Maule below freezing temps without preheat because at those temperatures the bearings have no clearance and lubrication is terrible. Back on subject: leaving heaters on tends to heat the oil and tends to promote evaporation of moisture that normally ends up in the oil as a result of combustion. In aviation it is generally felt that leaving the preheat on longer than needed just encourages rust inside the engine.