Was breaking in my engine earlier today. Think I did a pretty good job got it tuned pretty good. I was preheating it until the glow plug area temperature was about 220-230 but then I would check around halfway through the tank and it was only 140-170. I dont know why It did this. Could running it around the 150 side DRASTICALLY take away from the engine life? I mean if it takes away about a gallon MAX out of the life of the engine, I wouldnt mind as I will be replacing it with a new engine anyways later on 2013. So how can I fix this issue. I am running a medium-hot glow plug.