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DEWFPO · 05-12-08, 02:52 PM

A larger filter of the same brand/type like a M1-102 vs M1-301 will only hold more particles. Neither will filter any better (particle size wise) than the other.

The advantages of having a larger filter is more oil for the engine to use and more space to store carbon particles. The downside is, that when you start a cold engine, it takes a little longer for the oil to fill the larger filter (even with the anti-drain back valve.) because of the inverted design on the FJ.

Oil is supposed to get dark, it it doesn't, then it isn't carrying away the finer carbon particles in suspension. The purple in RP oil is a dye that dissipates after a short time in your engine. They even state that on their website.

I have used a stock Toyota oil filter, an M1-102, an M1-301, and now an Amsoil Ea-057 (stock sized). So far I'm liking the Ea-057 best, but time will tell.

DEWFPO

05-12-08, 02:52 PM	#7
DEWFPO IH8MUD Junior Join Date: Apr 2007 Location: "High in the Rockies" Posts: 117	A larger filter of the same brand/type like a M1-102 vs M1-301 will only hold more particles. Neither will filter any better (particle size wise) than the other. The advantages of having a larger filter is more oil for the engine to use and more space to store carbon particles. The downside is, that when you start a cold engine, it takes a little longer for the oil to fill the larger filter (even with the anti-drain back valve.) because of the inverted design on the FJ. Oil is supposed to get dark, it it doesn't, then it isn't carrying away the finer carbon particles in suspension. The purple in RP oil is a dye that dissipates after a short time in your engine. They even state that on their website. I have used a stock Toyota oil filter, an M1-102, an M1-301, and now an Amsoil Ea-057 (stock sized). So far I'm liking the Ea-057 best, but time will tell. DEWFPO __________________ 2007 Sun Fusion, FJ Cruiser, 5AT