The best way to keep your car passing those annoying emissions tests is to keep the vehicle well maintained. Don’t wait until last minute or until you actually fail the test to do something to improve your car.
Change your oil regularly. Not only is this good for the overall life of your car, but extra dirt in the crankcase could release additional pollutants making it more difficult to stay below the defined levels to pass the emissions test.
Perform regular tune-ups and schedule one 2 weeks before your next emissions test. If your mechanic disconnects the battery during your tune-up, it will give the onboard computer two weeks of driving to run all the diagnostics necessary to pass the test. Regular tune-ups can also improve the efficiency of your car and improve your gas mileage.
Top off the coolant before your test. The emissions test runs the engine at high speed so efficient cooling is important.
Fill up your gas tank. If the gas level is low in your tank, this could expose the fuel pump and put vapor in the fuel line, emitting additional unnecessary pollutants.
Drive the car at highway speeds. If most of your commuting is local, consider some highway driving for two weeks prior to your emissions test. Your catalytic converter is responsible for converting harmful pollutants into less harmful emissions before they leave your exhaust system. Short trips don’t get the catalytic converter hot enough to do its job. Highway driving is the best way to get that catalytic converter hot enough to burn off any gas and oil residue.
If you have any concerns about the condition of your car and it’s ability to pass the state emissions testing, bring it in to the Olympia Auto Mall. Our helpful service centers will be happy to assist you. We have the largest selection of new and used cars in Olympia if you decide it’s time to upgrade. Happy Trails!
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