OK, with oil on the tip, which is where the spark is generated, any time there is something that reduces the amount of spark that causes a problem. Now some problems don't seem to be affected by the cold and others are improved by the cold. But starting in cold weather is tough on a car and it needs to be running great to make it through the winter. I suspect you use some oil and have to add a touch of oil. I also suspect that you have a few miles on the car and I also suspect that your fuel economy has dropped off over the last year or so. This isn't something that happened overnight. So, what do you do to fix it?
I wouldn't need to do a compression check as it might actually turn out to be fair and within tolerances, but the oil rings are leaking and letting oil in to the firing chamber. This is not good.
Time to pull the engine and rebuild would be my suggestion.
Saturday, December 2nd, 2006 AT 8:44 AM