Hubby says: It wouldn't hurt to throw in some engine conditioner, use premium a few days beforehand, and get an oil change and change the air filter a couple of days before the test.
If it fails, there's a limit of $400 they can make you spend. If it stills fails after that, you get a conditional pass. That's valid for 2 years and you can still drive your car just fine. But you can't sell your car as e-tested with a conditional sticker.
So, even if you fail, you won't have to buy a new car, but may have to spend $400. which sucks, but is better than a new car!
If it fails, there's a limit of $400 they can make you spend. If it stills fails after that, you get a conditional pass. That's valid for 2 years and you can still drive your car just fine. But you can't sell your car as e-tested with a conditional sticker.
So, even if you fail, you won't have to buy a new car, but may have to spend $400. which sucks, but is better than a new car!