That's what I thought. Nope it's H2o. It's plumbed into the heater line in the front and the drivers side of the block at the back on the other. wow There is an OD setup w/ a cable. It is right behind the tranny after a small driveline. Lots of wires going to it. I'll try to get some pics tomorrow when it's light so you can see what I mean. Thanks for all the help dj