Is anyone running straight water instead of coolant in their S? Lots of my friends with Scoobaru's and such run straight water with Water Wetter and run almost 20 degrees cooler. Safe to run water and wetter in an S?

 

your coolant acts as a lube for your water pump. i don't recommend it plus that tuff ups your pressure substantially. We tried it back in the day on the teggy and blew up lots of oem radiators... but hey if you buy it from oreillys it has a warranty

 

you'd probably be ok in the summer, but i wouldnt try it in the winter. wouldnt want it all the freeze up if we got a cold snap.

 

indeed...so besides the dealership, where can i get that uber special Type II honda coolant from?

 

You can use water just make sure its distilled. Faucet water carries the extra minerals and it will rust out the radiator. I run straight distilled water mixed with "weter water" you get it at autozone. I swear by this stuff. Water cools better then radiator fluid and the weter water lubricates your cooling system

 

Jimmy makes a valid point here. I dont DD my car and it stays in the garage the coldest it has gotten in there is low 60's as its insulated. You are taking a chance on that

 

well since i put water and water wetter in my engine has been running a little hotter the past few days..It usually stays on the 2nd or 3rd heat bar on the factory gauge in my AP1, but since i switched its been hitting the 4th bare every now and then...

 

You probably have a bubble in it. It shouldn't run hotter.

 

did you do a whole system flush? and use distilled water?

 

flushed it, didnt use distilled...but its only been a few days i will swap out the tap-water here soon...