I dropped my car off on Friday for an oil change and tire rotation. I drove off the lot and got down the road when I started hearing noise upon acceleration, couldn't accelerate to 2000rpm, and it started shaking. Within another minute, the check engine light came on so I pulled over and called the dealer service center back. They instructed me to drive it back to the service center so they could make sure it was safe. I drove back and it started shaking even more, was consistently making noise, and I couldn't go faster than about 30mph. It smelled like it was burning, as well. In total, round trip, I drove a little less than 5 miles.
When I got there, they told me it was nothing physical that they could find and they didn't know what was wrong with it. It was closing time so they sent me on my way with a rental vehicle for the weekend.
Since, they have told me there was a small oil leak due to the crush washer being shattered. When I asked how much oil was in my car on Friday when I arrived back, they told me around 3qts (my car requires 5qts). They have spent the last day and a half "taking care of me" and "ensuring there is no damage" and called me this morning to say my car is fine, full of oil, and I can come get it. All is well.
All of this to say, I don't think I believe them. Would a shattered crush washer cause me to lose 2qts of oil in less than 5 miles? How much damage could there be to my engine? Is this worse than they are letting on? Thanks for your help.