Primary fuel filter

[Magard]

(02-18-2020 )MAScontractingllc Wrote:  Yes sir.... You are correct

Unfortunately we do not have a fuel restriction gauge

When I say primary filter I'm referring to the frame mounted (housing made by paccar) from the factory and secondary fuel filter is mounted to the block...I'm not sure if that's correct terminology though

Primary fuel filter (frame mount)we use a Fleetguard FS36401 (10 micron)
Secondary fuel filter (block mount) we use a Fleetguard FF5825NN (4 microns)

That’s a normal micron setup. I run 10 pre filter (davco) 4 main filter. There’s a reason paccar salesman don’t spec that filter and now mostly use davco.