Question about 2003 Pontiac Grand Am

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Wrong oil I put the wrong oil 5-20 instead of 5-30 in it and about 3 weeks later it started to click or tick. I then changed the oil again and then looked in the owners manual and it said not to use 5-20. When I was changing the oil, I noticed that the filter had "ooze" falling out of it. When I finished the oil change I started the car and it still "clicked or ticked". I think the whole engine is "oozed" up. Is there any fixes for this?

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  • I added an oil treatment called "rislon", and ran the car at 55mph for about 15min. the rislon seemed to "clean out" the ooze. The engine seems to be running ok now (no ticking or clicking). I am coing to run the car to work about 1/2 hour and back for the week then change oil again. Thanks for the advice about the 5-20. I appreciate the assissitance!

    FKMcC

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I wouldn't worry much unless it lasts for more than a few weeks after the next oil change. What you're probably hearing is the valves rattling. This is because of the very low consistency of the oil. I wouldn't recommend 5w20 for any engine personally, as when it is at normal operating temperature it's more like water then oil. I'd simply change the oil again after a couple days and let the new oil feed out any of the 5w20.

If this problem persists, I'd definitely take it to the shop to have checked just some internal damage occured.

On a side note, a good idea for you; get a can of oil treatment such as STP or Valvoline. This can help revive the consistency of the oil and possibly quiet that sound. But, it'll definitely help keep the oil where it should be.

Posted on Sep 09, 2008

  • Steve Patton
    Steve Patton Sep 11, 2008

    I'm glad to hear it! I doubt any damage was done as the 5w20 can lubricate everything sufficiently. Just doesn't have the "thickness" that the heavier oil does. And when the oil is upwards of 400 degrees; it really changes the viscosity and density. :) Just keep an eye on it and I'm sure it'll be fine.

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