911 Turbo AWD F6-3600cc 3.6L SOHC Twin Turbo (1997)
The first number and the letter W (winter) identify the viscosity at low temperatures. This means that an oil with the specification "5W" is more viscous
than oil with the specification "0W".
The second number indicates the viscosity at high temperatures. This means that an oil with the specification "40" is less viscous than oil with the
specification "50".
Multi-grade oils are identified by both viscosity specifications, e.g. SAE 0W-40, 5W-40 or 5W-50.
Examples:
SAE 0W 40 and 5W-40 oils have the same viscosity at high temperatures, but at low temperatures, the "5W" oil is more viscous.
SAE 5W-40 and 5W-50 oils have the same viscosity at low temperatures, but at higher temperatures, the oil with viscosity class "40" is less viscous.
Temperature Ranges:
Above -25° C:
All oils approved by Porsche for the vehicle type to be considered.
Below -25° C:
All oils approved by Porsche for the vehicle type to be considered which have a viscosity of SAE class 0W in the low temperature range.
Miscibility:
All engine oils approved by Porsche can be mixed provided they are of the same Porsche oil specification. This means that it is not necessary to flush the
engine when the oil is changed if another type of oil is used. However, since every brand of oil has a specially adapted unique composition, the same
brand and type of oil should be used for topping up between oil change intervals if possible.
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