I got 27+mpg on my trip to Chicago back in Aug. at 75-80mph you can get a new clutch slave here or have yours rebuilt, I have a spare that needs to be done but unfortunately its a 91 so of no help to ya. Unless they are interchangeable maybe someone who knows will post in. If so we can work something out so you wont have any down time.
http://www.powertorquesystems.com/Co...lave_89_90.htm