The undertrays are critical for maintaining proper engine compartment air flow. The engine cover's merely decorative, in fact the RS GT didn't even come with one.

 

DON'T use water wetter, so many issues, see other posts. If in doubt, if it was superior, the factories would use it. It's only a few very brave people that do. My opinion of course.

 

That boiling point is at atmospheric pressure. A pressure cap adds about 3 deg F per psi so a 15 lb pressure cap raises the boiling point of water/antifreeze mix to around 270 F. Plain water would boil at about 250 F.
So no boil over at 230 F but still a good point to start moving toward cooling the engine down.

 

I have also, but I still think it's for hood protection and also 'appearance'.

 

Forgive me, I would like to pull that statement apart a bit.
1 So many issues, see other posts...please point to a few that you feel are relevant
2 If in doubt, if it was superior...factories weight many factors and come to a 'somewhat' balanced acceptable set of compromises. One of which is cost another is the freeze point.
I do not use it in my current vehicles but I have used it in several aluminum engines over the years that ran way too hot in Texas. Typically they all ran @ 10~12 degrees (f) cooler after switching and I never had any 'issues' due to using it.
Racers on many tracks in Texas, that had heat issues, use water wetter to keep things 'cooler'.
If I had a serious issue with heat, depending on the location where the vehicle was driven I would consider Redline Water Wetter, or VP's Stay Frosty, based on my experiences.
ymmv
wj

 

What evidence do you have to suggest that? It’s the number one choice for track enthusiasts as it runs cooler AND has if there’s a spill it doesn’t cause any safety problems on the track. This’s as a replacement for coolant not as an additive.

 

Also, drag race tracks forbid coolant as it's slippery and doesn't clean up well. Water Wetter is used by many, and also straight water or a mix. Evans is also okay for drag racing. It's pretty frikkin' expensive though.

 

At what temp would the car start giving you warnings on the dash? I don't always have my OBD dongle/app plugged in to monitor, maybe I should start...

 

Too late. You'll be in serious trouble if you wait for the car to tell you something is wrong.

 

I'll also add the thermostat doesn't even open until 205 degrees F.