well... I guess I'm in the same boat...in somerset ma. last sat. morning at 5 degrees 240d wouldn't start and noblock heater. tried it later in the day and it fired up. temp will be down to single digits next few days. I'm considering a heater to splice into the radiatior hose. I've read the threads on installing the MB block heater but it seems like a bigger job than I can seriously consider this eve. I'm going to try two things. one is a hot plate under the oil pan to keep the oil warm and the other is the trick of pointing a hair dryer into the intake to hopefully warm up the pre chambers a little. that with some fuel additive is my best hope. I should know in 20 hours or so.... I'm open to any other suggestions. cheers, mark