In regards to how long you can go between oil changes, while I will not argue you can extend beyond 3,000 miles if you use your vehicle in a particular manner what customers are missing is you need to check your oil level. I am a GM service technician and the thing we are seeing regularly now are vehicle with dangerously low levels. If you are extending change levels to 5 to 10 thousand miles your oil level needs to be checked monthly. It is not being done. Tires chould be rotated more often than 10 thousand miles so the driving public needs to adjust their vehicle maintenance habits.As to the way you use your vehicle, if you are like my wife who drives 1 or 2 miles a couple days a week you may need to change your oil more frequently. Keep in mind the the oil life systems use no sensor in your oil. It tracks the number of engine crankshaft revolutions and at what temperature these revolutions occur. If you say for example you have 20 million revolutions between oil changes, it counts cold or very hot revolutions as multiple revolutions so you could use your 20 million revolution allotment in far fewer actual revolutions. If you drive longer distances daily with lots of highway travel you will go more miles between changes than someone like my wife who may only get 6 or 8 weeks before she needs to change her oil.
There is no substitute for being activly engaged in your vehicles proper care. Oil life monitors and extended maintenance do NOT meen set it and forget it. Quite the contrary.

My first Blog, Hi, my name is Bruce McGettrick I’ve been with GM for 40 years. I’ve learned during this time to keep it simple. There are two ways to impact the GM bottom line. I know, we all want to do that, we can increase sales or reduce cost. I have found it difficult to have much to do with increased sales; however, we can all reduce cost by eliminating waste. The nice part about that is, in many cases you can actually improve your own income thru the GM suggestion program. I’ve received 3 MAX suggestion awards over the years while reducing millions of dollars of cost to the bottom line. The suggestion program works, use it to benefit GM as well as yourself!