catalytic converter and or heat shield
burning lots of fuel to get it going, its an old car.
The head gasket on your vehicle is blown, please see a mechanic as soon as possible. The smoke is quite polluting.
Lack of power when driving especially when climbing a hill or accelerating Also the amount of exhaust coming out of the tailpipe. Put your hand over it and it should puff and want to push your hand off.
Get a longer tailpipe.
No, the engine exhaust is what comes out of the tailpipe.
These are the only two substances for which older cars have an legal limit on tailpipe emissions.
It will not become red uless heated
A tailpipe directs the exhaust gases from an operating combustion device away from areas where animals or humans are present.
the tailpipe on a car is also known as the EXHAUST of the car where the gases from the combustion happening inside the engine escape.
condensation
I would check and make sure that isn't just water. Condensation occurs on the inside of the tailpipe as the vehicle warms up... If you had gasoline coming into your tailpipe you would experience backfiring, extreme backfiring.
When oil comes out of the tailpipe it's time to see your machanic. the Piston Rings are worn, and need to be replaced.