Minor leaks which are not immediately detectable will not effect the smog
exam. However, if your Dodge Van's oil leaks are severe enough the smog
technician may refuse to inspect your vehicle because of concerns that the
oil will leak on the dynamometer and cause an unsafe testing condition, or
if during the test the oil leaks become apparent and effect the testing
procedures, the technician can decide to abort the test, in which case you
may be responsible for the inspection fee without obtaining a smog
certificate. If the oil leaks are minor don't worry about it. If their major
leaks, have them repaired before the test.
posted by SmogTips Support