What a great reliable car

[edwardmk]

Originally Posted by COLVERT

Depends where the water is in the car. In the ECU; start worrying.---

Lol. I was rushing that post. I meant to say in the brake fluid

[COLVERT]

Originally Posted by edwardmk

Lol. I was rushing that post. I meant to say in the brake fluid

Unless she's a racing driver then the brake fluid will never get hot enough to start to vaporise the water and give brake fade.---

[COLVERT]

Originally Posted by pletevl

It's not just about temperature though, it's about anti corrosion properties that diminue and start eating away the aluminium the coolant is in contact with. Pitting the head surface for example.

Pete.

The water content in a sealed system that does not leak becomes quite inert. Contains less and less oxygen.

No oxygen means no oxidisation. Most folks who have cars that need a small amount of water to top up from time to time use tap water. --This is where the contaminants can get into the system and start corrosion.---Distilled water only for top ups.---