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Frequent top up and low oil pressure guage.

I am a supplier of high quality lubricants which has meet various specifications like; the API, MB228.3, and NIS, with after sales services. I currently supply high quality lubricants to different generator suppliers all u Perkins power engines.

I currently have a problem for which I need your help. Two suppliers of the same type of Perkins power generator is buying the same brand of lubricant; API CH4/SJ, SAE 15W/40, KV@100C @ 15.80cst, TBN 10.8mgKOH/g. The first is enjoying the oil without any problem, while the second is having the problem stated below.

The frequency of top-up has increased and the oil pressure gauge after service drops from usual point 4 to point 2 equivalent to 50% drop after 3-4 days of service.

The question here is; what is going on, this is two same Perkins power generator with the same oil in use. While one has no problem, the other has drop in oil pressure and frequent top up. Like we do to all our customers, we offer free technical service which include testing of the oil at regular interval. While the oil in both cases show very good performance, the issue of low pressure gauge and frequent top up is what I find very difficult to understand.

Please, can you offer me any form of advice on this issue. I will be very great full if you do.

If it will be of importance. The power generator with the problem is operated in the northern part of my country where we are experiencing low rainfall and high temperature. Ambient temperature during the day is about 35 - 45C.

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If the oil need frequent topping up it can only dissapear in 2 ways a leak or the engine is very worn and is burning it.
a worn engine is also a cause for oil presssure dropping once the engine has warmed up probably worn main and big end bearings on the crankshaft as you will know oil is thicker when cold so oil pressure is increased

Posted on Apr 04, 2010

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