Was checking prices on a new A/c clutch cycling switch.. Theres 2 for both refrigerants.. Would running the wrong one blow itself out after a while? 20 bucks is a cheap test I guess. Its a 93 converted to r134 recently. Matt _________________________________________________________________ <b>Get MSN 8</b> and enjoy automatic e-mail virus protection. http://join.msn.com/?page=features/virus