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What causes oil pressure to drop ?

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During normal vehicle operation, oil is vital to ensures leak tightness between the combustion chamber and the crankcase. The oil pressure indicator shows how well this is being done. An unusual drop in oil pressure can result from either lower engine oil viscosity due to dilution by fuel (injector problem or use at low load) ; too little oil in the lubrication system (due to an oil leak, excess oil consumption, or failure of the oil circulation pump) ; or even mechanical part wear. more
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During normal vehicle operation oil is vital to ensure leak tightness between the combustion chamber and the crankcase. The oil pressure indicator shows how well this is being done. An unusual drop in oil pressure can result from either lower engine oil viscosity due to dilution by fuel (injector problem or use at low load); too little oil in the lubrication system (due to an oil leak, excess oil consumption, or failure of the oil circulation pump); or even mechanical part wear. [Back To Top] • Does the oil have to be topped up? The engine oil level should be checked regularly to prevent incidents. A small amount of the oil that circulates in the engine is always burnt (an engine in good condition consumes between 0.2 and 0.5 liters of oil every 1,000 kilometers), but successive top-ups are no substitute for an oil change. Accordingly, it is natural that an engine consumes a small amount of oil, which can be offset by top-ups between oil changes; however, excessive need for top-ups ... more
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