Depends on what is wrong. If the engine is running perfectly and you notice no drop in mpg, or power then there is no hurry to get it fixed. However if that is not the case you should get it fixed immediately.
It all depends on HOW it goes bad. If it blocks the outflow of exhaust gas, then the distance you can drive before it begins to decrease power will become shorter and shorter until you will have trouble getting out of your driveway. If it blows through, then you can drive indefinitely (or until the next state inspection).
spanner has a number next to it of how long until you require a service spanner has a number next to it of how long until you require a service
Keep an eye on it, if it doesn't leak you will be fine until the next oil change. If it leaks, have it repaired correctly now.
it will be when everything is dead
105 years
until 9:00
Until the next time you eat
if you drive out from Sacramento at 5am you will be at Seattle around 3 to 4am the next day
How long are you going to wait for an answer? Until 8pm? Until midnight? Until next Tuesday? No, "Until." is not a sentence.
until next week (monday)
no
until your next blunt