I posted a few months back regarding the oil change interval recomended by Chevy on an 07 4cyl Colorado. The book says not to change oil until the "change oil " displays in odometer. The truck was new on 10-2-06. On
12-08-06 the indicator came on at 10,456 mi. We has oil changed and indicator reset. On 2-19-07 it came on again at 22,246 mi. I am still nervous running the oil so long. The owner of the company says not to worry. It will be interesting to see if any problems arise doen the road as the miles pile up. And to top that off, the shop that we use for service only uses the inexpensive Champ brand filters and no name " bulk" motor oil. So far the truck is trouble free and engine is smooth and quiet. It only used a 1/3 of a qt. of oil in the nearly 12,000 miles since last oil change. Scott