I parked my 300cd in late 2012. It’s running beautifully, same tank of fuel and everything.

But all that sitting has shown me that there’s an oil seepage at my boost controller in the wastegate hose.

When I remove the turbo u-tube, there’s a very slight amount of oil sitting in the turbo inlet body.

Is this a sign of blow by (my engine is excellent and has next to none via the oil cap off test) or a turbo seal?

Thanks!

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)

Oil vapor condenses and leaves a slight amount in the intake just ahead of the turbine. Normal. Nothing to worry about.

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