Coolant alternative ANSWER

[97alpineM3]

http://www.bimmerfest.com/forums/archive/i...hp/t-46962.html


That is the most informative study on coolant on the web...

Info on Zerex G-05,

-Zerex G-05 is a low-silicate, low-pH, phosphate-free, pre-charged formula that is designed to protect automotive and diesel engines from rust and corrosion. Zerex G05 is approved by Ford and by Daimler-Chrysler for worldwide applications including all MTU and Mercedes engines

-Utilizes hybrid organic acid technology to minimize inhibitor depletion. (<-- the main reason why you can only use BMW coolant... besides this stuff)

Use this stuff..... its G rated better than BMW coolants G48 european rating.

[wulley1]

Good post. We should move this to the FAQS.