I just turned on my car and after letting the car warm up a bit, i stepped on it a bit to about 7 to 8k rpms quickly, then i noticed white smoke coming out of the back, i don't know what it can be, can anyone help me , is it serious, does it have anything to do with oil, because I was dangerously low on oil teh other day so i filled it back iup and also, if it helps, when i stepped on it and and the revs come back down, it throws like these little explosions, backfires i think. Didn't do it before, even with empty cats. Help!

 

You sure it's white? White = coolant, which is bad.

If it is grey/blue, then it's oil, meaning that your side seals are wearing down. The engine may be good for 30,000 more miles, or it may start burning tonnes of oil tomorrow, it's hard to say...How much oil does it burn per 1000 miles of driving?

Oh, and try checking your oil before it becomes "dangerously low".

 

it burns oil like crazy, i mean about a month ago i did a tune up when i bought the car, and changed the filter and everything, then about 1 month later i check the oil and its almost empty. Can i change the side seals?

 

Too much oil consumption. Your oil control rings are toast. I'm sorry to say, time for a rebuild.

 

Changing the side seals is easy. Simply swap them for good ones. Of course, to do so you have to disassemble the engine.

But it certainly sounds like that's your problem. Classic symptoms.