It has been snowing here all morning. I have almost an inch on my car right now. I have also heard numerous horror stories related to mobil 1 synthetic, and would never use it in any of my vehicles. Also, synthetics help to cool motors easier than standard oils do, so if you are having problems with cooling, it can help some. On our off road race team, the first year we had our truck, we were running conventional oils and were overheating the oil, we switched to synthetic oil, and the oil temps actually dropped 40 degrees when compared to the standard oil. Even if your engine coolant is running at normal temps, if you are running your motor hard, your oil temps can be well above the coolant temp. If you are running synthetic oils, this is more resistant to breakdown at high temps, and it will run cooler as well.
