This is kind of a mad scientist idea, but------I have an ammeter left over from another project which will read +/- 70 Amps. The fan has its own dedicated 30 Amp fuse. Why couldn't I pull the fuse out, and run a lead from each side of the fuse holder through the ammeter, then turn the fan on, and see if it draws more than 30 Amps? The roadster pickup has a new voltmeter that reads +14 V when the engine is running, and +12 when the key is on and engine is not running. I know that when the fan kicks on that it is drawing a lot of current, because the alternator belt will start to squeal a bit---this indicates that the alternator load is increased quite a bit when the fan kicks on.----anybody have a comment on this????