Mercury - Fuel Level Gauge E-F Fuel Monitoring White Face Chrome Bezel 79-8M6020017. OverviewThis E-F fuel gauge gives you a clear, steady look at how much fuel you've actually got in the tank. The needle settles into place with a smooth swing, so you're not guessing every time the boat rocks or the bow rises. Out on the water, it becomes a quick, natural check-one glance and you know what you're working with. It's a clean, simple gauge that just fits into the flow of the day.. Key Features • E-