[puddleglum]

I agree that engine wear is a major factor that most people ignore. Most info I've seen says 90% of wear takes place during warm up. I've become a firm believer in block heaters, even if the plug in cost is higher than the fuel savings. I'm finding, though, that my OEM 400w EBH is not enough in really cold weather and I think I need something bigger. I suggest that anyone thinking of installing one, make sure you get one large enough to do you some good. I only see about a 20C/36F temp rise in a 2.4L engine.