Mercury - Fuel Level Gauge E-F Fuel Monitoring Black Face Black Bezel 79-8M6020029. OverviewThis fuel gauge gives you a clear, steady look at what's in the tank without overreacting every time the boat shifts. The needle moves in a calm, predictable way, so you're not guessing whether you've got half a tank or something closer to empty. Out on the water, it settles in quickly and becomes one of those gauges you check with a quick glance. It's a simple tool meant to make the day run smoother.. Ke