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Thread: Oil Sludge T5

  1. #1
    Join Date
    Oct 2007
    Posts
    24

    Default Oil Sludge T5

    I have been looking at purchasing a 2006 XC90, after a deal for a 2006 xc70 fell through. I really like the interior room of the XC90. However, the T5 XC90s that I have looked at have significant oil sludge on the filler cap and the neck into which the oil is added - it looks like mud and you cannot even see through the neck. These were 2006s with approximately 50k KM. The oil dipstick also had deposits on it. I walked away. On the other hand, a used six cylinder XC90 had no signs of any sludge. One dealer told me that most of the XC90 T5s have the oil sludge problem. I have also seen it on pre-2008 XC70s, though some have no signs of it.

    My question - is this a problem with the XC90 T5s and XC70s with the same engine and does it affect the engine long term? Is there a design flaw in the engine? It can't be related to just short drives, because the six cylinder ones don't have any sign of sludge.

    Thanks for your input.

  2. #2
    Join Date
    May 2009
    Location
    Chocolate Town USA
    Posts
    1,185

    Default

    The T5 is the same engine in every 850 from 93-97 and S/V/C70 from 98-00
    and every S60 / V70 /C70 01-08

    So not sure what your seeing but it must be a maintence issue where ever you live.

    The the T6s sure the engine might look clean but I bet the tranny is about to fall out the car so ....

    Frequent oil changes and maybe some AutoRx and I would be all over the T5s
    2012 Ford Fusion 2004 V70XC 01 V70XC -M66 1998 C70 T5-M66

  3. #3
    Join Date
    Apr 2009
    Location
    Sydney, AUSTRALIA
    Posts
    50

    Default

    My T5 had oil sludge when I first bought it. It was because the previous owner had left it too long without a service. My mechanic flushed the engine and it's all good now...
    Sydney, AUSTRALIA

    2003 XC90 2.5T
    1981 Porsche 911 SC
    1999 Suzuki Hayabusa

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