I start my KJ CRD with the original Optima this morning It's "just" -17F here! Indeed the block heater was plug all night! For those complaining about your cold weather in the USA this winter...
It's worse for us! You feel better now?
Here the proof in Celcius

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2005 CRD Ltd/Tru-Cool 4454 LPD
/Filter bleeder CRDBV/Fumoto F102/ProVent 200/Euro TC
/Hayden HY2905 Viscous clutch with OEM 52079654AE fan mod
Samco/OME/Bilstein/JBA4.5/Mattech BTA Machined trans valve body
/BF rugged terrain 245/75/16 on MOAB

