On my 87 TD . Also #3 was low. 100 psi , 300psi with oil squirted. I did two runs of it on separate days but i still have the blow by. I did it post turbo while idling. Maybe i need to spray pre turbo. But i was worried about turbo. I may try that one last time .

My engine uses 1 quart every 500 miles about. Thats the real annoying part. Plenty of power still since its a 6 cyl 603 engine. I also bought a gallon of Lucas oil additive and have been feeding it that. I am going to try Marvel Mystery oil soak next and then drive it till it quits.

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What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius