Hi, my mom's 04 Camry was damaged in hurricane Charley in the 2004 hurricane season. It finally got into the body shop this week to get repaired. My question is: is there any adverse effects of leaving 4,000 mile old oil in the engine for 3-4 weeks sitting at the bodyshop? Is the oil still safe to run for the remaining 1k miles? If not should it be changed? The car has 14k on it. Thanks in advance. oh yeah I believe it has Pennzoil 5w30 in it if that matters.