Search results

  1. R

    Jeep Wrangler TJ 4.0 Oil

    New to me 2004 Wrangler TJ with 4.0. 105,000 miles and well taken care of; would like to keep it that way. Thinking either regular Pennzoil 10w30 or Rotella T5 10w30. Does the Rotella still have the ZDDP that I see recommended? Would the ZDDP harm catalytic converter? I'm a big fan of...