A "clogged" CAT will stop the motor; yours isn't clogged - perhaps ineffective (depends on the state emissions test) bu not clogged. OK, the new radiator may well be the reason for the temperature rise. Burning a bit of oil, IMHO, would not noticeably raise the operating temperature. Dilute coolant has a lower specific heat capacity than 50/50 mixture; another possibility. Given these possibilities I'd count the replacement radiator's tubes vs. OEM and question the heat dissipating core material vs. the OEM. -- © 2008 T.G.Lambach. Publication in any form requires prior written permission.
