I would note that this is not optimal. It has worked for you and some others, but once the switch to a 3G is made, the fan's efficiency improves (it is needed most at idle, which is where alternator output is the least). I just wanted to say something to this effect so others dont necessarily think they can bolt any ol' fan up and run it off a 2G. I might imagine that you are cognizant of other accessories running at the same time and have to be mindful of that.