Smoke billows out the back of the car and I can't fugure out what the problem is because when I bought the car it did'nt billow smoke out the back. I accidentally put 10w 40 oil in it when it needed 10w 30, I'm not sure if could be the problem or not but I wonder?

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Originally Posted by justin

Smoke billows out the back of the car and I can't fugure out what the problem is because when i bought the car it did'nt billow smoke out the back. I accidently put 10w 40 oil in it when it needed 10w 30, i'm not sure if could be the problem or not but I wonder?

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Check and see if the PCV valve is clogged. If it is replace it. If that does not work, go to the parts store and get a product called restore and when you change the oil the next time put the restore in in place of 1/2 quart of oil. By the way, the 10-w-40 waon't hurt that engine. I have an 87 Accord and I run 20-w-50 in it. It runs fine. It now has 227,000 miles on it.

Justin, more than likely, you are getting blow by into your carburator, if your piston rings aren't bad. 10w 40 will not cause your car to smoke. Perhaps you might want to consider a heavier weight of oil. You could just happen to have a bent valve.( or a stuck one)

Does the car backfire any? Better yet, for this car, there is a specialist website. www.redpepperracing.com they have a Factory Service Manual available online to download or look at. (this would be better than a Haynes, or Chiltons, because honda produced it) Talk at me when you get over there.-

Try a product call "Overhaul" for 4-cylinders and see if that helps.

In my opinion, the safest and most effective product of this type is AutoRx. It's an ester-based product that gently emulsifies varnish and sludge, a layer at a time. It is not a solvent or flush-type product. It will do a remarkable job of cleaning and restoring lost power. It is particularly effective in cleaning cam seals, valve seals, and main engine seals, so that they seal again. It can also be used in transmissions. Check it out.

After you get it cleaned up, switch to Valvoline Synthetic Max Life 5W-30. It's a high mileage oil that has impeccable credentials (ACEA A3) and extra detergents and seal conditioners for cars over 75,000 miles.