[F32Fleet]

Originally Posted by Chriztofor

I have been using Peak long life for years on my e46 and e90. It is silicate and phosphate free. No gum-ups, no problems, 98,000 miles, original water pump. http://images.peakauto.com/long_life_5050_specs.pdf

Of course you wouldn't top off with anything you had handy. As you kmow Mixing coolants can be bad if you don't know what you're doing.