Royal purple filter, 9.3k mi

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Feb 24, 2005
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Location
eastern NewMexico
2 oil changes does not disappoint in the sludge department

First oil change was PP 5w-30 ran 5,704 and the second oci was PP 10w-30 HM ran 3,625 miles.
Hyundai sonata hybrid 2018.
IMG_20250724_173106_6.webp

IMG_20250724_173049_6.webp

Imasay that about the limit.
 
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A little hard to see, but it appears as though that is a whole lot more goopy oil than I've ever seen in my old Sienna "sludge monster" with almost 475,000 miles.

Assuming that's the case what do you think causes that?
 
A little hard to see, but it appears as though that is a whole lot more goopy oil than I've ever seen in my old Sienna "sludge monster" with almost 475,000 miles.

Assuming that's the case what do you think causes that?
I don't know but that sludge has topography.
It seems the harshness of being a direct injection, chain driven dohc engine.
 
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