Maybe ive got a problem. None of my plugs are dead, but is it possible for them to be weak? Here in the country, it has been routinely below freezing overnight. I running Chevron Delo and its almost time to change. What weight you recommend? Also, what about additives? I currently do not run any, and assume Mobil puts some in the fuel. I don't know what the problem is. Holson, I assume you keep your car outside, correct? If so, thats amazing how quickly it fires up. I need effort to awaken my beast, even after like 35 seconds of glow, its still doesnt fire immediately. I am running Autolite glow plugs....could these be the reason?