I recently put this product into my sportbike's cooling system. The bike has a very accurate and reactive temperature LED readout. This bike, a four cylinder 600 cc Honda four makes about the same HP as a Vanagon, but of course, has less torque at just 46ft/lbs..(doesn't need torque at just 370lbs wet weight and a 14,500 rpm redline) still, enough power to push it along to ~160mph.. at the track, of course. These bikes run pretty hot, especially when ridden slowly in traffic. They routinely run up to 230f..the cooling fan comes on at 217f. At highway speeds they run at 180f, but just a mile or two in town will take the temperature right up and the fan will come on, holding the readout at about 220-230f....a little too hot, in my opinion. So recently, before a track day at Oregon Raceway Park, I drained most of the coolant (ethylene glycol antifreeze, when spilled on the racing surface, makes for very poor traction and dangerous conditions, hard to clean off, too) and replaced it with distilled water and Red Line Water Wetter...I didn't flush the system, which leaves a little anti-freeze in there to help lubricate things) Now, even in our recent triple digit temperatures, my bike still runs at 180f on the highway but in town it rarely goes above 212f and I haven't felt the fan come on in three sprirted street rides....It did come on at the track after a session going flat out, but only as I ran slowly into the paddock. I also used this product in my race car with similar results to the coolant temperature... My own Vanagon's inline VW motor doesn't run particularly hot but I see some posts from people who're concerned about their vanagon's coolant temps. This product works, just about how it says on the bottles....a slight reduction in operating temperatures if you just add it to your normal antifreeze mix and up to 20% cooler if you reduce the anti-freeze/water ratio down and add the W.W. as directed. I had three full racing seasons on my water cooled Porsche race car motor and the coolant system looked perfect. One thing that is important is to remember every fall that you have NO ANTIFREEZE! with Water Wetter. Don't ask how I know this. Don Hanson |
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