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2002 Cummins Fuel In Engine Oil

crav70
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Mopar1973Man

Mopar1973Man

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Do you mean 20 PSI of lift pump pressure? I just want to clarify is all, thanks.

 

Yes sir. 14-20 PSI is a good normal range of operation. Basically give you a 6 PSI swing area for fuel pressure drop. There is absolutely no reason to exceed 20 PSI it doesn't improve performance nor does it keep the pump lubed or cooled better being the return line is smaller than the supply line.

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