I agree w/Neil...fuel issue.
Diesel fuel contains paraffin wax, which crystallizes as temps drop. Clumps of wax can restrict the filter, causing fuel flow problems. As temps continue to fall, the fuel will gel and stop flowing altogether. The temps at which "clouding" and "gelling" occur depend on the diesel blend. Use an anti-gel/fuel conditioner additive all year 'round...you just might find winter upon you while you still have "summer blend" fuel in the tank...
Proper use of glow plugs aids cold weather starting by pre-heating the combustion chamber. Diesels ignite fuel in the cylinders by the heat of compression. Glow plugs (and block heaters) reduce the cranking strain on the battery/starter...but won't do a thing for clouded/gelled fuel.
Diesel fuel contains paraffin wax, which crystallizes as temps drop. Clumps of wax can restrict the filter, causing fuel flow problems. As temps continue to fall, the fuel will gel and stop flowing altogether. The temps at which "clouding" and "gelling" occur depend on the diesel blend. Use an anti-gel/fuel conditioner additive all year 'round...you just might find winter upon you while you still have "summer blend" fuel in the tank...
Proper use of glow plugs aids cold weather starting by pre-heating the combustion chamber. Diesels ignite fuel in the cylinders by the heat of compression. Glow plugs (and block heaters) reduce the cranking strain on the battery/starter...but won't do a thing for clouded/gelled fuel.