Shady 0 Report post Posted January 13, 2013 Am thinking of giving the E30 a radiator flush soon and refill with some fresh coolant & water. Does anybody known how many litres to completely full it back up, for an M40 motor? Coolant vs Water (how many Ls of each) is recommended? Coolant will be the normal anti-boil/anti-freeze stuff. Cheers Quote Share this post Link to post Share on other sites
antil33t 90 Report post Posted January 13, 2013 (edited) http://hellafunctional.com/?p=629 Here in New Zealand it's not REALLY that cold... it's unlikely to freeze if you just use tap water... but then you'll end up with something worse than a frozen radiator. I use 30% myself... If you're concerned about boiling points of water... an M20 E30 pressure cap is 1.3bar a later BMW has a 2.0bar cap. Edited January 13, 2013 by antil33t Quote Share this post Link to post Share on other sites
yng_750 247 Report post Posted January 13, 2013 yea a 2.5L bottle of nulon long life green concentrate would be ideal. about $30 i believe. pour the whole bottle in then fill the rest of the way with water Quote Share this post Link to post Share on other sites
Shady 0 Report post Posted January 13, 2013 Shot. Cheers guys. Next weekends mission. Much appreciated. Quote Share this post Link to post Share on other sites
