I had the flashing light last night when I first started the car got out the owners manual and read the indications for the light I have been watching the radiator level and it has been close to the minimun mark, so I'm going to top off the level my question is what kind of radiator fluid can I use I don't have any Porsche fluid? Another question is has anyone used the waterless radiator fluid???

I had the slow flashing light. Replaced water pump, Thermostat, front engine mount then replaced coolant with fresh coolant. Burped the system then found it was slightly low on coolant once I put a little more in I was fine. Yes very sensitive. I also found my primary engine compartment cooling fan was binding and blowing fuses. got one off ebay and replaced all was well.

If it just a little low, you can add distilled water.
Mine was just below the min mark and 1 cup of water raised it back up just below MAX when cold


of course I am in San Diego and don't worry about freezing temps
That small amount is a negligible impact on the 50/50 mix

My light was flashing slowly once, then I realized it smelled like coolant, then I realized my coolant tank cracked :eek: