Originally posted by method:
The previous owner of my SVT used Mobil 1 synthetic. Just having done my first oil change a couple of weeks ago, I went ahead and used conventional. I remember reading a thread once saying whoever's car ran cooler on synthetic. My temp gauge runs in the same spot as it did with the Mobil 1. I can't tell a difference, but it's been only 2000 miles.
The truth of the matter is the synth. oil will run cooler. However the difference is so small that the gauges that Ford put in these cars will not register it. These gauges are nothing more than idiot lights with a needle on them, they dont measure actual temp. or pressure.
