DetroitG37Joe

iTrader: (2)

As for air filters? Do u think sticking with OEM paper element is good enough? Most paper filters won't catch anything smaller than about 20 to 40 microns with any real efficiency. In most cases, the more expensive the filter, the lower the micron level of filtration - and the lower the better, of course.

20 to 40 microns is pretty small. A human hair is about 100 microns in diameter. The problem is that 60% of engine wear is caused by particles between 5 and 20 microns (most likely because there is so much more of it). If you don't keep that stuff out, it'll eat away at your engine.

Many top end air filters such as the foam ones will keep out particles down the size of say 5-10 microns in size....Does anyone have a suggestion in good air filter brand names and models/tiers that we can invest in to protect the longetivity of our engines?

Tarkus

Here's some light reading for you.

http://www.bobistheoilguy.com/airfilter/airtest3.htm

jdmalltheway

when i had my g35, i changed to thek&n intake, which sucked in some oil. It damaged one of the sensors in the intake that costed me $300 to replace it. And no, it wasn't bc I oiled it too much. It came like that out of the box.

go4gr8

There are dry gauze/cotton filters out there with foam, or just foam filters.