the gearing can keep you in the mid to high rpms all the time, sometimes you just end up running at 4000+ rpm for 90 minutes straight then refuel and another 90 minutes. ( someday I should post an in car video from an average highway trip 0-70 mph as fast as possible typically going up hill or behind a car that should be going lots faster then merge in and open up... { this is why nascar is popular here! } )

* yeah, realistically unless you like going 80+ mph all the time or live in CA you probably don't need one.

but moving the oil filter to a place you can get at easily is worth something too.