I've been going thru the scheduled maintenance guide for 60k Service; And somebody correct me if I'm wrong but it does not tell you to replace spark plugs for the F. Yet most people do because its "scheduled" ? (searched on forum for additional info)

It does list the GS, IS and LS but not the F in spark plug replacement.

Our F's take Iridium Plugs which have a 120,000 mile interval. Per new car feature guide on TIS

anybody else have any other information ?

 

It was in the 60k maintenance plan in my manual

 

On my 2011 Page 55 of my Warranty and Service Guide states to replace spark plugs 72 months or 60K miles.

 

I see it listed in the owners manual as well; although I have seen in the new car feature on TIS it states "The triple ground electrode type iridium-tipped spark plugs are used to achieve a 193,000km (120,000miles) maintenance interval".