RE: when to replace the sleeve and piston?
They might be. I get plenty of dirty looks from Prius drivers too. I guess they don't like me driving a 1985 F150...Can't imagine why, it runs great.
Also, you guys ever notice how Prius drivers think their car gives them a green light to drive like an arse? All the time, when I'm going down the freeway at 75-80MPH, they fly past me like I'm just sitting there.