You've already been read the riot act, so I'll pull a few punches here.

You've got a very high mileage car here--whether it's a Volvo, or a Honda, 150,000 miles is a high mileage for a car.

With any high-mileage car, YOU have a responsibility to attend to it's maintenance requirements with a greater degree of care than if you were driving a new car.

Whether, or not, the oil change shop filled your oil properly is immaterial, in my opinion. The fact that you had not checked you oil in the 2,000 miles since that oil change demonstrates a negligence that places the full blame squarely on your shoulders.

In my experience, and with the circumstances as you describe, your car, in all probability, will now burn oil at a greater-than-average rate. If you pay attention to the oil level, you can stay ahead-of-the-game and your car will run for another 100,000 miles.

But if you only check the oil when lights start glowing on the dashboard, you're going to be lucky to get 20,000 more miles on this car.

Take responsibility and take car of the car.

Ken