Question about 2009 Toyota Camry
First of all, it would be helpful to define what you mean by excessive. How much oil is it using? Do you still have most or all of your power? Is it smoking? Is there oil on the ground under the car after you park for a while?
High mileage engines often have leaky gaskets (oil on the ground), but they also tend to burn oil. Valve guides wear out, and oil leaks into the firing chamber because of that. Usually, when this happens, you will have a problem with fouling spark plugs and lack of power. The piston rings also wear out, letting oil get by and into the firing chamber. Excessive crankcase pressure due to "blow-by," where combustion pressure is released by worn out rings into the crankcase, which pushes oil into the air intake. This doesn't foul the spark plugs as severely, but also causes smoke out the exhaust.
Finally, if the engine has not been serviced for a long time, there are many things that can cause or allow oil to go where it shouldn't, usually into the combustion chamber and out the exhaust.
There is an excellent product available from Rislone that can help in some cases, and with amazing results. However, if your engine is worn out, it may need to be rebuilt or replaced.
Posted on Nov 27, 2014
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Posted on Jan 02, 2017
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