Why is it difficult to start a drilling rig in winter

(4) low-temperature diesel fuel viscosity increases, so that the injection speed is reduced, coupled with the air at the end of compression when the cyclone speed, temperature and pressure are relatively low, so that the spray into the cylinder of diesel fuel atomization quality is poor, it is difficult to quickly form a good combustible gas with the air and in time to ignite combustion, or even can not catch fire, resulting in starting difficulties.