85 300D did not start at 4F this morning, 5W40, block heater not plugged in. Took video (11 mb) uploaded to photobucket multiple times but not showing up, don't know why. Basically glowed for 30 sec, cranked for 15 sec and no signs of firing and starter started to slow just a bit so did not try again. Cranking speed sounded fast enough initially but the slow down could be a weak battery or starter.
I did check the glow plugs with a clamp ammeter and it showed initial surge of 100 amps so no glow plugs are burned out. This is not my daily driver and it has 7/8 full tank of summer fuel so I am attributing the no start to fuel gellinng for now. Does anyone know what temp summer fuel starts to gel? I put a charger on battery and plugged in block heater for an hour and it started right up.
It rained hard here yesterday (washed most of the snow away

) and I am happy to report my driver's door lock which is prone to freeze did not freeze with my bicycle inner tube bra. It works!
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