I always coated o-rings w/clean engine oil before installation.
New or reusing.



Dec '07 purchase -- '99 Sport LTD 3.5L SOHC - 139k, now 188k
'95 Montero LS 206k+ (traded)
New DD - '99 Taurus SHO 95k - V8's are fun <img src="/forums/images/graemlins/smile.gif" alt="" />