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Discussion Starter #1
Changed out the rear end diff fluid. This is what it looks like?? Black!!
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2006 STS-V
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Additives typically turn gear oil dark but then again, it has 70K on it. The metal looks like a lot too but again, 70K. Mine‘s been changed every 50K and was dark but had no metal.
 

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Discussion Starter #3
Additives typically turn gear oil dark but then again, it has 70K on it. The metal looks like a lot too but again, 70K. Mine‘s been changed every 50K and was dark but had no metal.
I would of changed it sooner but am the second owner. Im guessing it has never been done.
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2006 STS-V
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I found my cabin air filter had never been changed, @ 83,000 miles. Same thing with an 06 C6 Corvette I had and it’s mileage was nearly 50K.
 

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Discussion Starter #5
I also upgraded all the interior and door lights to led and installed a catch can😋
 
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