BrendanC
$100 site donor 2024
contact them and ask for the specification sheet. not even the PBL3001 is actually 99% at 20um.
What is your current favorite oil filter to use?
- Thread starter ZZman
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M+H spec sheets say otherwise. Everything seems to be based on "looks" lately, but everything doesn't always perform how you think it should based on looks.
Also, don't choose an oil for cold starting performance based on the PF "cold oil races". Base it on the CCS and MRV viscosity at the W grade rating test temps. PF's cold oil races don't always correlate to how the same oils would rank in an official CCS and MRV test. Just like BR's "efficiency " test ranking doesn't always correlate to the ISO 4548 ranking of the same filters.
I’m still finding OG Fram Titanium’s so that’s my number 1. After that Microgard Select or similar Vietnam made versions. Everything else IMO has been pretty sloppy lately.
I just bought 3 oil filters yesterday....2 Fran ultra (1 for my cub Cadet lawn tractor with a Kohler v twin and one for my wife's brand new Hyundai 2.4 theta 2). My third one was Mobil 1 m1-107 for my 2005 Silverado 4.8. I use the same one usually on my 350 Oldsmobile in my 84 Cutlass...but the truck I want to last over 500k miles...(Currently 256k miles). I'm willing to upgrade it's filter to something better but not something cheaper.
BrendanC
$100 site donor 2024
the carquest premiums are one of the cheapest ways into the premium guard filters. i have a couple C&P’s of them.The Fram PH7317 with a silicone ADBV .
But currently eyeballing the Car Quest Premium Blue filters.
What Purolator shows for the PBL30001 on their website is 99% @ 25u, and the recent spec sheet for the PBL30001 shows 99% >46u. Could be the 99% @ 25u on the website is left over old info. Seems like false advertising to me.
Sounds like you like walking. I understand that. I like nature too.
Got a link to a Purolator source of that info?
Fram... Whatever color I grab. Orange, silver, or gold.
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I get it but I'm using what I want. you don't know how long it was testing before these results. could have simulated many miles. Maybe these results where after the capacity test
BrendanC
$100 site donor 2024
thats why standardized tests exist. all filters are tested in the same manor so that the results are repeatable. no speculation like you’re stating here. you are free to use what you wish. just presenting you with some facts about the matter.
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I'll get a particle test done when I have 7.5k miles on my oil with the BOSS filter. But something tells me the experts on here still won't believe me
You can run no oil filter, I don't care.
The ISO 4548-12 was tested per the official test procedure. The Ascent ISO 4548 testing also showed its efficiency isn't anywhere near 99% @ 20u unless he has some efficiency data very early on in the test showing that it started out very efficient and stayed that way until it was about half loaded. So from what Purolator is saying, it's very efficient up to 10K miles, then falls flat on its face after that. If that's the case, then at some point half way through it's loading, the efficiency goes south fast. I'd have to see the test data on that one. And when BR does their "efficiency" test, they load it up with ISO test dust until the dP goes up by 8 PSI, so it's pretty loaded up and should be reflecting a ranking like Ascent showed.
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Your PC data won't mean anything unless you have PC tests for other oil filters used on the same engine over the same OCI with the same driving conditions. I've plotted PC data from the UOA forum and there were some Boss filters in the mix which showed a worse PC. Here's one example. So if you ran say 3 different oil filters on the same engine for the same OCI, you might see something like this.
Why doesn't Purolator show that chart on their website? ... like on the webpage below. Seems it would be something to get out to the masses.
Oil Filters
Use this oil filter selection chart to find the Purolator® Oil Filter that best fits your vehicle, engine and driving habits.
www.purolatornow.com
Boss or others models on the Purolator website show no such chart. If it's true, they should be showing that chart all over the place. Maybe they need a new marketing manager, lol.
PurolatorBOSS® Oil Filters
PurolatorBOSS® Maximum Oil Filters deliver peak performance and maximum engine protection for up to 20,000 miles.
www.purolatornow.com
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There are a few different sources for the efficiency of the BOSS.
Purolator marketing: 25 micron
Purolator datasheets: 46 micron
Ascent ISO test: 34 micron
Brand Ranks: Performed similarly to ~20-25 micron filters. Not the most accurate test method, but it was surely better than 46 micron.
You might think the datasheets would be the most reliable source, but they seem to copy-paste the 46 micron figure for all BOSS filter models, and there are other errors in the datasheets that lead me to question their accuracy. I'd say most models of BOSS filters are <35 micron.
Premium guards/ carquest premium
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