Leaking mower?? My lawn mower would chugg out..so i checked the gas and...

My lawn mower would chugg out..so i checked the gas and grease.. oil be low so i added a qaurt of small engine oil... it started up and 20 second into it...smoke everywhere.. stopped started it again..no smoke...20 sec later again crazy smoke..and grease leaking everywhere..is this article shot?? should i get a brand new one?
What is a fitting drain cleaner that works...
Answers:    A quart may have be a bit excessive. Mowers generally hold 1 1/2 quarts. Drain it, fill up on gently. Clean your nouns filter, which was probably your peoblem to get going with.
Chip contained by painted iron bed?