I decided to call a North Dakota Toyota dealer. I found thats normal for a very cold day even if the block heater had been plugged in for hours. I also was told the 'new' block heaters don't work unless the outside temperature is at zero or below. Toyota found out the block heaters were fooling the cars computer. It was causing the engine not to fully warm up the catalytic converter.


Total bull crap. I have plugged mine in at 20 above temps and it makes the engine warm to the touch in an hour so I know they work well above o degrees. Stealers are better stealing from your wallet than giving out accurate info.

TCH-43mpg
VW TDI--48
08 LS 600 HL-20
08 LX 470-16