I recently upgraded gauges to Mercury SmartCraft SC 1000 tachometer & speedometer. I did not install the oil sensor, I was told it requires a special oil tank and it's about $400+ (to me it's not worth it). Of course, now the speedometer keep giving me "AL" icon (Alarm) and showing LOW OIL warning.

How can I eliminate this error message? There must be way to indicate that oil sensor in NOT installed, I hope.

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