kablooie said:
So is my brother wasting his money by buying royal purple and using a bosch filter. I always thought Bosch and/or K&N were decent...? What about the Mobil1 filters?
Ok, this is a different subject. You have two types of filter media.... cellulous and nanofiber medias.
Fram, Wix, Hastings, Baldwin, economy Fleetguard.... all cellulous filter media is used in these. The question on hand is the quality and amount of media used. Cellulous is good media but it looks like swiss cheese under a microscope. Nanofiber media has much more consistant hole sizes.
The difference between the two is that the larger holes in cellulous allows for more large particle movement before being trapped compared to the uniform holes in nanofiber media. Also, nanofiber media provides more actuall particle storage than cellulous. This is why sometimes nanofiber filters are suprisingly smaller in size. The last benifet is media stamina. It takes roughly twice as long for nanofiber media to start to break down and fall apart internally.
As for applications.....(and actually getting to your question...
) a quality cellulous filter like a Wix or Baldwin goes great with conventional oil and economy synthetics. You can usually figure close to 10,000 miles out of a good cellulous filter in good conditions.
Nanofiber is usually teamed up with high quality synthetics designed for extra long extended drain intervals where a filter that can keep from falling apart, along with having the storage capacity, to keep up with the oil in a long 20K oil interval run.
Fleetguard stratopore, Amsoil, RP, and Donoldson Endurance (what I use) are the nanofiber lines that I am aware of.
