Originally Posted By: CompSyn
I was just comparing efficiency ratings and found:
PureOne Oil filers ISO 4548-12 of 99.9 percent at 20 microns
Amsoil EaO Oil Filters ISO 4548-12 of 98.7 percent at 15 microns, and ISO 4548-12 of 70.0 percent at 7 microns
Checked the Mobil 1 site and they don't list any ratings with the ISO 4548-12.
This is what Mobil 1 says:
"Mobil 1 Extended Performance Oil Filters contain synthetic fibers instead of the typical cellulose filter media. With a 99.2 percent efficiency rating (underThere is a new filter test, the SAE J1858, that provides particle counting and gravimetric measurement to measure both filter capacity and efficiency. The particle count test measures the number of particles of all sizes combined per fluid volume before and after the filter. The beta (B) ratio is then used by the filter manufacturers to determine a filter's efficiency. Beta calculation of filter efficiency [beta] = #of particles upstream/ = 10,000 particles/ = 10 #of particles downstream 1,000 particles Filter efficiency = (a-1) * 100/ = (10-1) * 100/ = 90% efficiency
[beta] 10 - The particle count leads to the measurement of the filter's capacity, while the gravimetric process measures the weight of the particles before and after the filter to determine the filter's efficiency. Keep in mind that when a filter manufacturer says its filter is 90 percent efficient, it could be based on either the particle weight or on the size of the particles. If the filter's efficiency is based on particle size, the manufacturer may specify, for example, that it removes 90 percent of all 20 micron-sized particles!
)"
So, I'd be interested to know the micron rating of the Mobil 1 filter when it's "99.2 percent efficient"?
Also, I believe the Mobil 1 filters are a synthetic & paper filter media blend and not 100% synthetic, correct?
This is what I found for testing method SAE J1858.
There is a new filter test, the SAE J1858, that provides particle counting and gravimetric measurement to measure both filter capacity and efficiency. The particle count test measures the number of particles of all sizes combined per fluid volume before and after the filter. The beta (B) ratio is then used by the filter manufacturers to determine a filter's efficiency. Beta calculation of filter efficiency [beta] = #of particles upstream/ = 10,000 particles/ = 10 #of particles downstream 1,000 particles Filter efficiency = (a-1) * 100/ = (10-1) * 100/ = 90% efficiency
[beta] 10 - The particle count leads to the measurement of the filter's capacity, while the gravimetric process measures the weight of the particles before and after the filter to determine the filter's efficiency. Keep in mind that when a filter manufacturer says its filter is 90 percent efficient, it could be based on either the particle weight or on the size of the particles. If the filter's efficiency is based on particle size, the manufacturer may specify, for example, that it removes 90 percent of all 20 micron-sized particles!
As far as I know the new Mobil 1 EP filters are 100% synthetic filter media.
I was just comparing efficiency ratings and found:
PureOne Oil filers ISO 4548-12 of 99.9 percent at 20 microns
Amsoil EaO Oil Filters ISO 4548-12 of 98.7 percent at 15 microns, and ISO 4548-12 of 70.0 percent at 7 microns
Checked the Mobil 1 site and they don't list any ratings with the ISO 4548-12.
This is what Mobil 1 says:
"Mobil 1 Extended Performance Oil Filters contain synthetic fibers instead of the typical cellulose filter media. With a 99.2 percent efficiency rating (underThere is a new filter test, the SAE J1858, that provides particle counting and gravimetric measurement to measure both filter capacity and efficiency. The particle count test measures the number of particles of all sizes combined per fluid volume before and after the filter. The beta (B) ratio is then used by the filter manufacturers to determine a filter's efficiency. Beta calculation of filter efficiency [beta] = #of particles upstream/ = 10,000 particles/ = 10 #of particles downstream 1,000 particles Filter efficiency = (a-1) * 100/ = (10-1) * 100/ = 90% efficiency
[beta] 10 - The particle count leads to the measurement of the filter's capacity, while the gravimetric process measures the weight of the particles before and after the filter to determine the filter's efficiency. Keep in mind that when a filter manufacturer says its filter is 90 percent efficient, it could be based on either the particle weight or on the size of the particles. If the filter's efficiency is based on particle size, the manufacturer may specify, for example, that it removes 90 percent of all 20 micron-sized particles!
)"
So, I'd be interested to know the micron rating of the Mobil 1 filter when it's "99.2 percent efficient"?
Also, I believe the Mobil 1 filters are a synthetic & paper filter media blend and not 100% synthetic, correct?
This is what I found for testing method SAE J1858.
There is a new filter test, the SAE J1858, that provides particle counting and gravimetric measurement to measure both filter capacity and efficiency. The particle count test measures the number of particles of all sizes combined per fluid volume before and after the filter. The beta (B) ratio is then used by the filter manufacturers to determine a filter's efficiency. Beta calculation of filter efficiency [beta] = #of particles upstream/ = 10,000 particles/ = 10 #of particles downstream 1,000 particles Filter efficiency = (a-1) * 100/ = (10-1) * 100/ = 90% efficiency
[beta] 10 - The particle count leads to the measurement of the filter's capacity, while the gravimetric process measures the weight of the particles before and after the filter to determine the filter's efficiency. Keep in mind that when a filter manufacturer says its filter is 90 percent efficient, it could be based on either the particle weight or on the size of the particles. If the filter's efficiency is based on particle size, the manufacturer may specify, for example, that it removes 90 percent of all 20 micron-sized particles!
As far as I know the new Mobil 1 EP filters are 100% synthetic filter media.