The Nissan Altima is a mid-size automobile manufactured by Nissan, and is arguably a continuation of the Nissan Bluebird line, which began in 1957.

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Why is my Nissan Altima 2.5s smoking

After changing the spark plugs and replacing new engine oil I found out that my car has been smoking profusely since then what could be the cause and the solution. Thanks

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if you have not changed the oil in a very long time causing a build up of dirt on the rings and causing them to wear . When you put new oil in this cleaned the rings and now with the wear its letting oil pass the rings and this causes the smoke. Or you could have used the wrong oil . Make sure you used the proper weight oil .

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