After having a used engine put in my car a couple months ago my check engine light has come on and I'm having to put a quart of oil in about every 100 miles. The engine had about 63000 miles on it but came from a reputable company. I've had it back in the shop and they keep sending me home saying something about am oil consumption test. But also that there was oil in the tailpipe? I'm very nervous about driving my car like this. Especially since I've lost any kind of pickup in acceleration. What would cause this and what should I do?
My car has 97000 miles.
My car has an automatic transmission.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing