HL. Your kidding right full flow only filters out the big chunks,does not every automotive engine since the mid 60 s run full flow.ive been a heavy duty Diesel engine mechanic for 26 years working on Diesel engines up to 70 L in dips,less than 5 percent I've dealt with run by-pass filtration and of those must run spinners to spin the carbon out of the oil. Full flow filters will filter out any particles that would be harmful to the engine.
