I Have Smoke From The Engine Coming Out Under The Hood

I took it to get checked he just take it look at when engine runs 15 0r 20 minutes it start smoking little, so he think could be anything likep piston rings but he said i could drive around for while if i would let it cool every 20 minute or so and keep the oil in good condition ,i wondering how long can i keep driving? i dont drive much 2-3 times a week only 30 minute each way,i would like keep the car for another 3-4 month before i can get another one,but i dont want the engine totally break down,give me your side advise if this van is ok to drive for while or what ,
i would problly cost 1000 to fix and van is 1999 plymouth youger,thank to everyone

Answers for The Question

  1. Monk99
  2. TJ
  3. puppies.sunshine
  4. owner_of_a_lonely_CAR
  5. RebelReaper