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This is an interesting idea and worth at least poking about I think. I don't think we've delved much into reducing oil pumping losses and I am interested in that subject. Obviously OEMs feel its a worthy area to look at and we're usually doing more than they are.
I had to look up what a bypass oil filtering system was since I'm not super familiar with them. Basically, they take a small amount of the oil being pumped through the filter, and run it through a very fine filter, and return it to the sump.
Obviously this is good for the oil and the engine life by keeping the oil cleaner, but I'm wondering where the fuel efficiency comes from? Are you saying that by running this bypass filter, you're gaining fuel efficiency by decreasing the pressure drop across the filtering system?
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