well got more "less than good" results running mobil 1-10w-30 in a 4.0 jeep, some of you may recall a month ago i posted a UOA on MY jeep tj running Mobil 10w-30 and had iron levels over 250, as well as other things heres a link to MY JEEP's last UOA.
bitog
Now my buddy has a Jeep TJ as...