Stop Blaming the filters. The oil pressure switch that operates the oil warning buzzer above 2000 rpm is located between the pump and the filter inlet. If a filter was more restrictive than stock, than this switch would see a higher pressure and would be even less likely to cause a warning. If the filter was less restrictive, which caused the light and buzzer to activate, than the engine bearings would actually be getting more oil. Below is a list of the reasons I've found for the warnings. 1) Incorrect or defective pressure switch. 2) Poor wire connections. 3) Overheating engine. 4) Incorrect oil viscosity,or oil diluted.(20w-50 as per owners manual). 5) Crankcase overfilled. Changing filter usually corrects this due to 1/2 quart lost. 6) Pump inlet screen partially blocked with crud. Causes problems after warm up. 7) Engine just plain tired. Dennis |
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