Hi All,

The 420SEL has a bit of a drinking problem. It likes to burn a considerable amount of oil. Right now its roughly, 200 miles to a quart or so. It appears that the majority of this, if not all, is going out the #8 cylinder (driver's head, rear most cylinder).

Every weekend I end up changing the #8 spark plug and it restores the car's idle and power back to normal.

I'm only driving the 420SEL because my 300D is in paint still and my 190E has a idle/stalling problem that I am working to address.

Does anyone have any thoughts or ideas on what might be the cause of this? The next step we were planning on is a complete valve job....once funds are saved up.

The motor has 237K on it. I probably should pull the rocker cover and take a look and see if its anything obvious.....

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82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k