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Old 04-08-2017, 11:15 AM
doobin doobin is offline
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Join Date: Jan 2013
Location: West Sussex
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Default Re: Yanmar vio25 oil warning light/alarm

Don't worry about the grade too much. Like Shovelhands says, a decent 15/40 mineral will be fine. Any oil in there should keep the oil pressure sensor happy.

Odds are the sensor has been failing and has now failed, or there is a failure in the sensor wire insulation.
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