By Steve Grosekemper
While Porsche has gotten along with air-cooling for their sports cars for the past 50 years or so, it has come to my attention that all Porsche models are water-cooled, and have been since 1999. The reason for this new-fangled water-cooling is that it maintains a more uniform control over cylinder head temperatures. Air-cooling was much simpler and best of all, never suffered from coolant leaks. Or always did, but that was OK as well.
For better or worse water-cooling is here to stay, so we better get used to it. Modern cooling systems are sealed and once filled should never need additional coolant.
If a cooling system does lose its fill, Continue reading ›