Mine is pretty new 35 hours. It has been around 45-55 degrees. I do the glow plug for about 10 seconds and it won't quite start. After the firing of the cylinders and the heat that creates, it usually will start, many times on the 3rd try after waiting each time for the heat from the firing to heat up the cylinders. IS this common at such temps? Do I just need to do the glow plugs longer?