Posted by noah on September 26, 1998 at 18:38:58:
In Reply to: Re: Anyone tried Redline water wetter in their Bim posted by Bruce on September 26, 1998 at 17:35:53:
: : Hi
: : This Redline Water Wetter is supposed to lower
: : coolant temperatures by some 20 F, has anyone tried it in their Bimmer ?
: i put a bottle in my M roadster and have seen no changes in the temp needle (still points straight up)...but i have heard it does help
BMW wants the engine to run at a certain temperature for emissions reasons. Under most road conditions I doubt the water wetter is neccessary. If you could messure flow rate in the cooling system, you would know if it the water wetter was doing anything though.