Contour Enthusiasts Group Archives Forums Modifications Duratec Performance Pro's and Cons of Mobil 1Syn???????

I am pretty sure that my engine runs a bit cooler since I switched to Mobil 1.

Ford now recommends 5W-20 for my car. You can check it out on www.motorcraft.com

There are not many choices for 5W-20. I will stick with Mobil 1 5W-30 for now. I also use either Mobil 1 or K&N oil filters. Motorcraft seems good to. Not FRAM though!