If I install a filter that restricts oil flow will I have a lower reading on my oil pressure gage ?
Possibly ...but mostly unlikely. FG has it about right on the pressure drop across a filter. It typically doesn't amount to squat.quote:
If I install a filter that restricts oil flow will I have a lower reading on my oil pressure gage ?
I disagree. Engine oil pumps are "positive displacement" pumps. This means that except for some leakage that Gary Allan mentioned, they pump the same amount of oil regardless of backpressure at the pump. This is, of course, assuming that the backpressure is less than the engine's pressure relief valve setting.quote:
Originally posted by TheTanSedan:
The idea isn't as bogus as it might seem if we re-phrase it a little. A low-restriction filter, as noted above, ensures rapid oil pressure at start-up before oil warms and may keep iron or other metal readings down....