Coolant & Anti-freeze

[pearson*]

Okay,

The expansion bottle at the back of the bike has gone down below the 'Low' marking,

I have brought some antifreeze and coolant from Halfords and have topped it up mixing it with water (50/50)

Two Questions:
1 Is it better to fully flush the system and re-fill when i have 10 mins spare?
2 Should i be using distilled water over normal water... is there any problems that could arrise ie. corrosion from using normal water.

Cheers.

[Evilchicken0]

Yes
yes

Tap water has impurities, when it's heated it deposits limescale like the inside of a kettle which you don't want in the engine. You can get distilled water in a supmarket too, it's used for stem irons.

[alexwitham]

Yes
yes