At the very least I'm going to do an oil sample on it just to see what all is in the oil. We just bought the car several months ago and I haven't done an oil sample on it yet, after seeing this it just moved to the top of the list of things to do.

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86 Nissan 720 P/U - 285K miles and counting!!
91 Volvo 240 - 218K miles and still going strong.
00 Mercedes E320 - 111K miles and lovin it!!!