One oil change in 11000 miles?

JIMNLIN wrote:


JMO but some folks waste good engine oil. Engine oils today aren't from the '70 era thankfully.

The issue that the OP asked about was not miles, but rather the many years between changes, somehow that keeps getting missed.

Many respect the services from Blackstone Labs. They did testing on decades old oil purchased on eBay. Interesting 3 part article and the bottom line was:

So that’s the end of our series. A lot of thought goes into making oil, and that’s been the case for many decades now. We’ve poked some fun at the way oil companies sell their products, but heck, they’ve got to say something. We stand by our statement that “oil is oil” and in the end, it doesn’t make a lot of difference what you decide to use. Through all the years and all the permuta-tions andconfigurations of oil and oil additives, the crude (and now, synthetic) stuff has kept cars running since Henry Ford did his thing more than 100 years
ago. Buy what suits your vehicle and your wallet -- not what anyone else says you should use.

Part 1

Part 2

Part 3