There can be head gasket failure without coolant in the oil. The head gasket breaks in front of the number 1 cylinder into the chain case. Oil in the crossover could be a precursor to a full blow out. In which case, the engine can blow out about 1 gallon of oil per 30-60 miles. Do a compression check and a compression holding check on the #1 and #2 cylinders. That will tell the story.

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All it takes for evil to prevail is for good men to stand by and do nothing.

Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor

'95 S320 LWB
'87 300SDL
'04 E500 wagon 4matic