Quote:
Originally Posted by marosmith
Also,
Does Amsoil 5w-40 work on this, of is 10w-40 preferred?
Is premium fuel needed, or is super adequate?
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Premium fuel is required. It says 93 octane required, but I called Porsche since the gas stations in my area only served 92 octane as their premium gas.
Porsche said 92 octane was acceptable, but the minimum.
Using Super will increase the chances of engine knock, since it is more likely to combust prematurely in the cylinder.
Higher octane fuel has a smaller chance of combusting too early, which is needed in powerful engines where premature combustion(engine knocking) can occur.