I have only 3500 miles since my last oil change which was 7 months ago. SHould the oil be changed due to age ?

New cars can easily go 5,000 miles between oil changes especially if you are using synthetic oil, and I would recommend every 6 months. BUT, with synthetic oil,. I understand that you can go as far as one year.. still,. Do it every 6 months , you're better off... Sorry, tennisshoes, but,. 3,000 or 3 months is very old school...

tennisshoes-. I understand, and I did that on all my cars pre-2000... BUT, since I have two cars from 2009 and 2010, they say this is completely different story now. Are you running synthetic oil in your cars?

http://www.edmunds.com/car-care/stop-changing-your-oil.html

http://www.edmunds.com/car-care/top-7-urban-legends-about- motor-oil.html

Look, the guy has a 2015 Chevy Silverado....it's not an old car. He should follow the manufacturers recommendations.

Changing the oil every 3,000 miles is harder on the environment and very 1960s/ 1970s.... I understand that a lot of us grew up with this and it's hard to shake,. I get it....

Here's one more post on this subject,. Please don't over due it.. http://www.nytimes.com/2010/09/11/your- money/11shortcuts.html?_r=0

I would change it at 7500 miles or 1 year, whichever comes first. The days of the 3000 mile oil change are gone forever. Oils are much better than days of old and so are the engines.