...ask someone from Chicago what is the best pizza (or the better MLB team)
...ask someone from Boston the fastest way to get from the Back Bay to Inman Square
...or, ask a MB message board how often to change oil. I have been using Mobil1 15W50 at 4,000 miles for a 500e (86k), a 230sl(136k), an E320 (126k) and soon a C240. The dealer still says to change every 10k for the newer cars, but I can't bear it. I would really appreciate a learned opinion here,

THanks,
g

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64 230sl, my daily driver
94 E500, sold
98 E320, family and dog hauler
04 C240, safe machine for teen drivers, but a poc
08 audi a4, yes we have gone to the dark side