Hi there! I recently bought a 2011 Scion XB, just over a year ago. Anyway, a few weeks ago I developed a knocking sound in my engine. I drove home and had my boyfriend check it out. Looks like I had low oil and when he did an oil change he found metal debris in the oil. I was just passed my due date for an oil change. So, I went to the Toyota dealership to see what my options were. I am in the warranty period for the oil consumption issue so the dealership recommended an oil consumption test. My question is, should I do an oil consumption test when I have rod knock? I don't want to seize the engine and make things worse... and then what if it falls in spec. Any advice will be appreciated. Thank you.