C230 Gas Gauge Failed
I would hope that fuel would not have a detrimental effect upon the fuel gauge sending unit. As for the type of fuel, we have only put in 91 Octane Premium since we purchased the car at 5K miles. What kind of mileage do you get on the hwy with yours. We got 32.5 on a long (2K) trip to Texas that was way better than I expected. The car runs great and is more fun than my 88 E.
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