never changed the washer before and have never had any leaks.....I've been doing my own oil changes for the last 10 yrs on cars ranging from '93 Altima, '02 Pathy, '02 IS300, and now my '05 Pathy.
the only time that I developed a leak was from a dented oil pan on my IS300 (running over a tree branch--totally didn't see it until the last minute).
