Question about 2001 Lexus LS 430

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I have 2001 ls430 with 181000 miles and I have engine sludge

The sludge caused my motor to lock up. And I have always had my oil changed. I have the records to prove it! Less than 5000 between oil changes.

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  • shaverssr Jan 22, 2009

    I use 5w 30

  • lexusdoc Mar 09, 2009

    I had the same problem 3 years ago with a 2001 lexus ls430. my mechanic said it was because i never drove fast enough and the water in the oil caused acid to form and a sludge because the water never had a chance to burn off. i drive 2 miles to work and never go more than 40 mph. they were able to clean out the engine completely (basically an overhaul) and now it runs great. i try to go fast now and then and change the oil frequently.

  • yadayada
    yadayada May 11, 2010

    I really doubt that your engine locked from oil sludge, and 5,000 means nothing unless it was all highway miles, most likely your engine was just worn out and broke.

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Usually this is Caused by a Change in Oil Viscocity Between oil Changes. Like--You were using 10 W 30 and the Next time you used 10 W 40 and So on. The same goes with Mixing Synthetic and Regular Oil.

Posted on Jan 22, 2009

  • Travis Humphries
    Travis Humphries Jan 22, 2009

    Take it to Your Mechanic then. He will verify what I told you and you will be back to fix that INNAPROPRIATE Rating!

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