I recently purchased this pre-owned car that has gone 65,000 miles. The tailpipes have a black residue inside that I've just noticed. Should I be concerned? Is the engine damaged?
This is probably not a problem. If your state or locale requires emissions testing, this will be an immediate way to determine if the engine is running too rich (burning too much fuel for a given amount of air). But you should be good to drive the vehicle unless you are experiencing any notable driving concerns.
Have a car question? Get free advice from our top-rated mechanics.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing