Looking for a New Oil Filter

Yes. Here’s my virgin c&p

I'm not an expert, but that looks like Premium Guard filter to me. If someone already said Pentius is made by MG, I must have missed it.
 
The one thing that I find interesting about the different PG made filters is that some of them say they have a 10,000 mile life and some say 15,000 (the Pro Series OE+ that I bought says that) Makes me wonder if they all use the same exact media or not.
 
The one thing that I find interesting about the different PG made filters is that some of them say they have a 10,000 mile life and some say 15,000 (the Pro Series OE+ that I bought says that) Makes me wonder if they all use the same exact media or not.
Probably not, as another clue to that is they all don't claim the same exact efficiency either.
 
Probably not, as another clue to that is they all don't claim the same exact efficiency either.
It would seem that Premium Guard as well as all of their private label brands publish either numbers, e.g., 99% @ 20 and 99% @ 25 which would be correct for both as seen on the Service Pro graph. Not sure about the mileage ratings that some use but it seems apparent to me that Premium Guard produces two types of oil filter media, the "Standard" and the "Extended Life". There again, This would be assumption through extrapolation of available data. As others have said, they don't seem to respond to e-mails.
 
It would seem that Premium Guard as well as all of their private label brands publish either numbers, e.g., 99% @ 20 and 99% @ 25 which would be correct for both as seen on the Service Pro graph.
Based on the info for the Service Pro Extended Protection filter on that graph, they could probably claim 99.8% @ 20u, but perhaps they just round it down to 99% @ 20u to be safe. Back before M+H took control of Purolator, the PureONE was rated at 99.9% @ 20u ... it was printed right on the boxes.
 
If you look at the chart they’re all correct. 99.8@25 and 99.5@20. I think the individual brands are choosing one to advertise. Don’t ask me why they’d choose one over the other?
 
If you look at the chart they’re all correct. 99.8@25 and 99.5@20.
They can always claim less than better, to be safe in their claim. Like the ISO 1548-12 efficiency Ascent did. The OG Ultra he tested came in better than Fram's efficiency claim. Ascent's efficiency test showed it to be 99.8% @ 15u.
 
They can always claim less than better, to be safe in their claim. Like the ISO 1548-12 efficiency Ascent did. The OG Ultra he tested came in better than Fram's efficiency claim. Ascent's efficiency test showed it to be 99.8% @ 15u.
Exactly. That chart clears everything up imo.
 
The one thing that I find interesting about the different PG made filters is that some of them say they have a 10,000 mile life and some say 15,000 (the Pro Series OE+ that I bought says that) Makes me wonder if they all use the same exact media or not.
I also find that interesting. Explains why the c&p’s look so good even beyond 10k miles.
 
Got any links to the Ascent testing?
Epic thread ... read from the beginning if you want the whole story.

 
My Buick can take a standard short filter, or a longer double length filter. I always use the longer version.

For example, the Baldwin standard/short version is B43-S. The longer version is B35-S. Every manufacturer makes a short and long version. The short version is what comes up if you search for an oil filter for 97 Buick Park Ave. I always find long versions of each brand by cross referencing to Baldwin B35-S or Wix 51036.

Take a look at the specs below, which I got from each brand's website.

Premium Guard (under their own brand name) gives us a choice between excellent/efficient filtration or having a silicon valve & gasket. You can't have both from PG brand name.

Premium Guard (short) PG111 website says 15~25 microns, black nitrile valve & gasket.
Premium Guard (short) PG111EX says 42~60 microns, pink silicon valve & gasket.
Premium Guard (long) PG4011 says 15~25 microns, black nitrile valve & gasket.
Premium Guard (long) PG4011EX does not exist.

Oreilly Microgard Select (long) MSL51036 says 99% @ 25 microns, has pink silicon valve & gasket.

Napa Gold (long) 1036 says it's 99% @ 30 microns, has pink silicon valve & gasket.

Autozone STP XL (long) 3980XL says it's 99% @ 20 microns, has pink silicon valve & gasket.

Advance Autoparts Carquest Premium (long) 85036 says 99% @ 20 microns, has pink silicon valve & gasket.

The claimed filtration specs are all over the place. It makes me wonder how accurate claimed/stated specs are. I doubt that Premium Guard is making several different filters for my car, each for a different auto store, and with different filtration efficiencies for different auto stores.

My best guess is that all the Premium filters made by PG sold under autostore housebrand names probably all really filter at around 25-30 microns, which is excellent.

I think when autostores say 20 microns (or less) they're trying to mislead us with excessive optimism. When they say 25 they're being honest and realistic. When they say 30 they're being honest and conservative. IMO

99%@30 microns is excellent, IMO. It's a lot finer than Baldwin's 99%@40 microns, or whatever Wix is (which is larger than 40).

The AC Delco Ultraguard Gold UPF47R claims 98% @ 30 microns. So I think 98% or 99% @ 30 microns sets the bar for excellence. I think 40 is better than average. I think average is around 45-47 IMO. So I'm happy with anything 40 or less. Overjoyed with 30 or 25.
 
Last edited:
Back
Top