Has anybody ever used Evans NPG+ Coolant?
Click the link and tell me what you think.

 

I started a thread some time ago about this. No one was able to give any first hand experiences with a MINI, but did have some say they had used it in other vehicles, mainly race cars. The only drawback I could determine was that this stuff is a lot thicker than regular coolant and the water pump may not like it.

I loved the aspect of longer life with little or no pressure needed. But am not sure if I will use it or not. Seems to be a bit of a pain to completely flush the MINI's engine also.

 

Arnbut,

I would wait to try something this new. Have you tried waterwetter? It's supposed to reduce you temps by 30F.

Plus being the head and block are all aluminum, heat should be removed faster. The hot spots and water vaporization seems more likely in a steel block. The new aluminum block should conduct the heat much more efficeiently to the water jackets. IMHO, Standard coollant + water wetter should be more then enough.

This product doesn't appear to be mainstream yet. I would hold off until the normal antifreeze maker start offering it.

 

I've been around cars a long time - I think you mean a Cast Iron Block - There is in the mainstream just Cast Iron or Aluminium blocks and heads. You can have a Cast Iron block and a Aluminium Head but I've never seen the opposite. Aluminium heads do have a tendancy to warp if overheated to much - but the Aluminium they are using these days is much better than the old days - say like Fiat 128's famous for warped heads if overheated.

 

The new "Plus" formula has identical flow dynamics to stock coolant...

I've been using Water Wetter from Redline Performance for 10 years in my bikes and cars.
You can't fool a t-stat; the car still operates within nominal specs. The Water Wetter does allow for better thermal conductivity (or so I'm led to believe).
I could never get any empiracal evidence with infrared guns or gauges to show that there was actually any difference though.
It doesn't cost much and it has a remarkable placebo affect at worst...

 

I too have been using Redline's Water Wetter for years. I have no idea if it works as advertised.....LOL.....but I do know that I don't get the temp spikes that I used too.