Are the rings in my jeep bad?

[Michael G]

i have a 1994 jeep cherokee i just bought the specs are I6 4.0 4x4 with chrysler rear end 223,xxx miles. it smokes alot i was told the oil or piston (cant remember) rings were bad and that i should just get a new engine. Theres a good bit of smoke coming out the exhaust, the oil guage stays relatively in the middle while cruising when accelerating it gets higher with the rpms only when accelerating, and i havent noticed any change in the oil level since i did the oil change 500 miles ago.
i think i meant to say O-rings or they could be the same i have no idea i just need help lol
to drew lawrence, the last time i sat there and watched it, it was white smoke also (if it means anything) when you rev it it seems to go away doesnt get worse or anything. another thing i just remembered sometimes at traffic lights i notice it smokes more than other times, quite a bit more but then the reset of the day its fine just normal smoking.

[mikee]

Could be rings, piston, valve seals, or head gasket.
Only way to tell is a compression test.

[Ben Lindsey]

Piston rings go bad on any engine, they keep room from the piston hittin the cylinder wall and also maintain pressure. You need a new engine, or a used one in better condition