likely rear main seal leak

[thefisch]

Spent part of the day narrowing down possible oil leak locations on my 98 S90 with 145k miles. First replaced the seal on the oil filler cap as there was some oil seeping from there. Then checked the rear cams to see which side might be leaking - intake cap seemed fine but found fresh oil coming from under the cam sensor from the exhaust seal.

Looking under the car, I spotted oil residue on the middle bolt where the transmission meets the block. I guess this means we probably have a leaking rear main seal too, right?

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