Lets talk oil filters

[WESTERNAERO]

Okay, I was thinking they were in line, that's why I asked about the micron going from large to small.

[gn7]

Okay, I was thinking they were in line, that's why I asked about the micron going from large to small.

We will be building a 540 for a recreational boat this winter, and it will use a large micron filter that will double as a "return loop" from an oil cooler that is open on both ends, and uses a oil filter to loop the oil back thru the cooler. So the oil passes thru the cooler, thru the filter, and back thru the cooler. Going to be using a System 1, 70 micron stainless permanent filter on it, then the oil will pass thru a filter mounted on the block, and into the engine.