Originally Posted By: Motorking
Originally Posted By: HangFire
Originally Posted By: ZeeOSix
If you're an engineer then you should have no problem understanding this. Maybe you don't quite understand that if an oil filter is 99% @ 20 microns then it's even more efficient at larger particle sizes. If you can accept that 20.001 microns is larger than 20 microns, then when Fram says the filter is "99% > 20 microns" they are saying it will essentially catch 99 out of 100 particles that are 20.001 microns and larger. To me, you can say it's "99% @ 20 microns or larger".
I also have no problem understanding some marketing doofus could take the sum total of all larger particle testing, call that 99% of all particles averaging in the actual 20 micron figure with the rest, and get away with it by using ">".
By the way there are also 1,700A jump starters on the market containing 170A peak instantaneous discharge AGM batteries and no pulse circuitry. Do you believe those figures too?
Marketing doofus? Really? 35 yr ASE master tech, mechanical engineer, repair shop owner, internationally known technical trainer doofus? You sound like a democrat now, cant make your argument so you resort to personal attacks? Would you like to visit our engineering labs and actually learn about filtration? The trips on me.
Where you the one who wrote the ">" ad copy? No? Then that remark was not intended for you.
Originally Posted By: HangFire
Originally Posted By: ZeeOSix
If you're an engineer then you should have no problem understanding this. Maybe you don't quite understand that if an oil filter is 99% @ 20 microns then it's even more efficient at larger particle sizes. If you can accept that 20.001 microns is larger than 20 microns, then when Fram says the filter is "99% > 20 microns" they are saying it will essentially catch 99 out of 100 particles that are 20.001 microns and larger. To me, you can say it's "99% @ 20 microns or larger".
I also have no problem understanding some marketing doofus could take the sum total of all larger particle testing, call that 99% of all particles averaging in the actual 20 micron figure with the rest, and get away with it by using ">".
By the way there are also 1,700A jump starters on the market containing 170A peak instantaneous discharge AGM batteries and no pulse circuitry. Do you believe those figures too?
Marketing doofus? Really? 35 yr ASE master tech, mechanical engineer, repair shop owner, internationally known technical trainer doofus? You sound like a democrat now, cant make your argument so you resort to personal attacks? Would you like to visit our engineering labs and actually learn about filtration? The trips on me.
Where you the one who wrote the ">" ad copy? No? Then that remark was not intended for you.