Well bought the 05 xf limited coupe today, will post pictures when weather allows. Got it home and opened up the owners manual. 2 surprises.

S on the shifter is not sport mode for higher automatic shift points. And semi manually bumping the auto shither.its standard when in drive. Manual is kinda vauge. Other than W is for winter/wet and engine is limited. Does it always default/revert backt to standard at start?

91 octane fuel requirements, does it have knock sensors and a ignition timing retard system?

Yep newb questions