10W40 in the summer. 5W40 in the cooler monthsGetting ready to do the first service on my 996 at my buddy’s place. Going to replace my HVAC Heater Control Valve while it’s up on the hoist at his place.
The stupid owners manual just says that it comes filled from the factory with permanent coolant. And if you have to top up use Porsche recommended…
And since we’re there we’re going to change the oil. But the manual isn’t much help… I’m thinking Mobil 1 10W40…. But who the fuck knows at this point. Rennslist peeps seem to be using 5W40.
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