His last name is Schneider, I wrote it wrong. Ok well and good but now we are here in 2025 with the same question because Fram puts their efficiency out and we are almost positive most filters are ruffled. So is their data true, or not true. They can’t look inside anymore than we can to cherry pick. If true that’s as good or better than a Micro Select.
Who knows ... nobody else beside Fram. When they changed the Ultra to the new type media it's possible they re-tested that configuration per ISO 4548-12 ... they should have to verify. They did send efficiency info to a few members here with efficiency numbers (that info was posted in a few threads, sure you saw it too), so that had to be based on something. But that was a while ago probably before leaf springs started getting ruffled when stamped. You could email Fram and ask when the last time the Ultra was ISO 4548-12 tested, and how old the efficiency claims on their website are. Or you can pay lots of money to have some current built filters ISO tested in a lab like Ascents.
You could send them an email with your numbers and see what they say. So you are saying they are a dishonest company. In that case I would steer clear of anything made by them, because anyone can write stuff on a box or website, and if it’s true or not no one knows. Other companies aren’t taking them to court.
Who knows if they are "dishonest" now ... you'd have to prove it with data. We do know that they were honest about the claimed Ultra efficiency back when Ascent did his official ISO 4548-12 testing. I know some people (maybe you too) were disappointed Fram wasn't caught making false claims. Yes, other big companies checkup on their competitions claims now and then, so there's always room for a lawyer to send a letter calling them out for false advertising. Motorking mentioned Fram did that because they had and ISO test lab that they could run any filter they wanted to verify.
