CP3 in Ram verses CP4 in Ford and GM
Is there someone that could possible explain the difference in the cp3 system that is in a Ram verses the cp4 system that is in a Ford? The high pressure Fuel Pump, is it just a brand difference or an...
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I am referring to the known fact that ULSD is lacking in sufficient lubrication so I feel the use an additive to increase lubrication is a good idea, and as I stated JMO
