Would there be engine damage if oil level was down 3 quarts?

Yes, if an engine is down 3 quarts of oil, it can lead to serious damage. Insufficient oil levels can cause inadequate lubrication, leading to increased friction, overheating, and potential seizure of engine components. Prolonged operation under these conditions can result in significant wear or even catastrophic failure. It's crucial to maintain proper oil levels for optimal engine performance and longevity.