How much oil is ok to burn up in 1000 miles?

The acceptable amount of oil consumption can vary depending on the vehicle's age, make, and model. Generally, consuming up to one quart of oil every 1,000 miles is considered acceptable for most cars, especially older ones. However, for newer vehicles, significantly less consumption, often around a quart every 3,000 to 5,000 miles, is expected. It's always best to consult the vehicle's owner manual for specific recommendations.