12.06.2008, 15:43
... aus dem amerikanischen Handbuch (rein informativ 
)
If your vehicle has the 7.0L V8 engine (VIN Code E), use premium unleaded gasoline with a posted octane rating of 91 or higher.
For best performance, use premium unleaded gasoline with a posted octane rating of 93.
In an emergency, you can use regular unleaded gasoline with an octane rating of 87 or higher.
If 87 octane fuel is used, do not perform any aggressive driving maneuvers such as wide open throttle applications. You may also hear audible spark knock during acceleration. Refill your tank with premium fuel as soon as possible to avoid damaging your engine. If you are using gasoline rated at 91 octane or higher and you hear heavy knocking, your engine needs service.
Grüße Peter
)If your vehicle has the 7.0L V8 engine (VIN Code E), use premium unleaded gasoline with a posted octane rating of 91 or higher.
For best performance, use premium unleaded gasoline with a posted octane rating of 93.
In an emergency, you can use regular unleaded gasoline with an octane rating of 87 or higher.
If 87 octane fuel is used, do not perform any aggressive driving maneuvers such as wide open throttle applications. You may also hear audible spark knock during acceleration. Refill your tank with premium fuel as soon as possible to avoid damaging your engine. If you are using gasoline rated at 91 octane or higher and you hear heavy knocking, your engine needs service.
Grüße Peter