Did mine 2 weeks ago. I used Comma Xstream concentrate and a big bottle of battery top up water. The most difficult bit was removing the expansion tank and cleaning it out.Remember to refill slowly with the bike on its side stand- does away with the need to burp it!
Has anyone used engine ice?? Seems to be popular in the states... In summer as soon as I get into traffic the temp goes up quickly.. Trying to find a remedy to lower running temperature in the summer