Where I work, we have a fleet of Chevy Astro vans. The owner doesn't get rid of them until they reach 200,000 miles. During this time, we never had an engine failure. Oil is changed every 7,500 miles. We go thru at least 1 transmission per truck to get to the 200,000 mark. Other issues are the starters, idler arms and the vacuum line that connects to the vents/heater adjustments.