I started my engines this morning at -4 F... No preheat never do

Wow. Pretty cavalier attitude with two engines worth close to $20K apiece.

I've found that for periods of four hours or less, the engine will stay
pretty warm with our dark blue cowl cover on -- especially in a bright sun.

For longer periods, plugging in is essential. A couple of weeks ago, while
staying at Lake Lawn Lodge (in Lake Delevan, WI) the oil temperature was 34
degrees at start-up -- even after being plugged in overnight, WITH the cowl
cover on!

The outside temperature was -10, and the wind was howling.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"