Fuel Gauge Inaccuracy?

Crash

This is usually what happens. The issue has to do with sulfur building up on the sending unit contacts.

Shell is known for having sulfur problems actually.

This is correct.



Also, guys, you should also know that if you're going to use the auto-fill on the handle of the pumps, you should use the lowest/slowest setting. The reason for this is that modern pump handles have a vapor evacuation channel that sends fumes back to the pump. When pumping at full speed, some of the gasoline will return through that channel and you will be charged for that gas that you're not actually getting. So your MPG calculations (if you do them by hand) will be inaccurate and you will over pay.

Using the slowest setting on the pump does not guarantee that none of the gasoline run back to the pump through the vapor channel, but there's far less chance of it.

BTW, you'll notice that many times the VERY bottom auto-fill setting (the slowest) is either cut off or disabled. They do this because they know that even if they get you for $0.01/gal more, they're going to make a significant gain in profit. Some gas stations know this and go out of their way to prevent you from using the slowest auto-fill setting. Some pumps will not let you pump that slow as well. (Greedy jerks. LOL)

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2002 Corvette Z06 - Totaled
2003 Corvette Z06 50th Anniversary