and i only buy the model specified in the user's manual.
i don't care how much better the salesman claims the other one is.
the engine was designed for a specific spark plug,
and that is the one i use.
nothing more and nothing less.
and as long as your engine is a SOHC, and it is,
changing plugs is pretty easy so no need for a longer lasting plug.
have you been the www.mysuabru.com
(i think that's it.)
you can registwer your car, and once they check ownership,
you may be able to download user manuals.
they will also list recalls and if they have been completed for your car.
it's a pretty good site.
but you will get solicited by the nearest dealer, occasionally.