quote:Originally posted by RobertC:
You claim EaOs are better because they use Donaldsons patent.
Where is the independent proof that says that one is the best?
You ask for independent testing of a PureOne.
Let's see Amsoils. (Paying for it makes it dependent.)
And your filter analysis is wrong. I know it is what you have been taught, by a sales guy. Go get an MLA III and then talk to me.
Donaldson tests their filter media for AMSOIL. Independent SouthWest Research Institute also tests AMSOIL's filters.
Any certified lab can verify AMSOIL's claim of 98.7% filter efficiency @15 microns per ISO 4548-12 as publicly stated on every AMSOIL filter box and filter. I'm sure several have, and none have disputed. And none have that level of efficiency and back it up with up to 25,000 mile/1 year warranty. A bit more believable, substantial and documented compared to an " e-mail response from the tech/engineer department" at Purolator. Compare to Purolators oil filter change recommendation "Purolator PureONE oil filters should be replaced every 3,000 miles or 3 months depending on the driving conditions - or unless otherwise specified by the vehicle's manufacturer." Seems pretty clear to me which one is the best.