Yes
That is oil. VERY BAD!! You need to take your car to your garage right away. You should know this, I'm not even old enough to drive and I know this.
It's going to be on the exhaust system somewhere. My 97 has it right in front of the motor next to the radiator coming out of the exhaust manifold. Looks like a spark plug looking thing with a single wire coming out of it.
That depends on the engine, but they should all be either on the exhaust manifold collector or down the exhaust pipe a bit right after the exhaust manifold.
Find where the exhaust bolts up to the motor aka the exhaust manifold and follow it about a foot towards the back of the carand you'll see a stud sensor with an electrical connector threaded into the exhaust right before the catalytic converter on both sides of the exhaust and one right after the catalytic converter on each side ,so 4 in total.Hope this Helps
Under the battery, on the right side form the exhaust system coming out of the engine.
If you open hood there should be a heat shield plate covering exhaust manifold remove this and it should be right below it on the left side of the exhaust.
For right now it should be in in Fall 2012.
Generally the exhaust lash is more than the intake. The engine data plate should have the valve lash info stamped on it.
if both are automatic and both have STOCK exhaust systems it should be alright
perhaps the choke is stuck or may be running rich, sometimes the plugs arn't in the right heat range
Should be the first component that looks like a small muffler after the exhaust manifold
assuming its a truck right??? there should be at least 2 if not 4 on your exhaust,one for each side of the exhaust 2 before the cats. and two after