Your engines blown! 0.0 oh dear. You engine is burning oil. Not good. Get her to a shop.
worn out muffler bearing
THATS usally cause by the engine using oil-because of bad oil rings etc.
To change the muffler or exhaust in a Chevy Venture, jack up the vehicle and locate the muffler. Spray penetrating oil on the nuts and loosen muffler clamps. Replace with new.
You have to much oil in your fuel/oil mix
You have too much oil in your gas, that's why oil and gas is coming out your exhaust.
The 'inlet' on a muffler refers to the side in which the exhaust gasses from the manifold enter the muffler. The outlet is the side that the gasses exit out to the tail pipe/s.
Is it a 2 stroke motor? If it is that's normal
The most common reason for your Pontiac to lose oil and ex smoke from the muffler is a broken piston ring. A malfunctioning exhaust valve can also cause the problem.
is there any formation of aquaregia inside a vehicle muffler..? any answers..!! I assume you mean from the tail pipe. Water is a bi-product of combustion & is expelled with the exhaust. -LubeExpert
If it is a 2-stroke engine, the oil/gas mixture has too much oil. If it is a 4-stroke engine, the oil sump is overfull.
If your vehicle is not under warrenty, then it is best to shop around and get a few quotes.
The float on your carb is stuck down and letting gas flow into the oil thru the cylinder pass the rings and out thru the muffler.