Oil Filter Thread

[HEMIMANN]

I poked around Premium Guard to see if they had any filters for trucks but all I found is motorcycle engine oil filters. It's what I use on my Harley.

https://www.amazon.com/PG63798-2006-2023-Harley-Davidson-2014-2023-2007-2019/dp/B07DN1DY9Z?pd_rd_w=O4SnI&content-id=amzn1.sym.d77fc71d-50de-409a-abeb-03b0a5133383&pf_rd_p=d77fc71d-50de-409a-abeb-03b0a5133383&pf_rd_r=8TGFNVS0WQ6H0WV4H29S&pd_rd_wg=QRmRz&pd_rd_r=adc3a61f-3c02-4d61-bdd7-5928284c4185&pd_rd_i=B07DN1DY9Z&ref_=pd_bap_d_grid_rp_0_1_ec_t&th=1

 

[Burla]

I think if you see backing like that is has to be synthetic unless otherwise stated.

 

[HEMIMANN]

I think if you see backing like that is has to be synthetic unless otherwise stated.

Yes, and they say somewhere it is glass synthetic, and I can see the backing inside the can. Made in Vietnam if I remember correctly. When you look at it, it appears all quality construction. Even comes with a plastic film seal over the opening. I don't remember how I found it, maybe the Harley Forums.

 

[EdGs]

See the 20 minute mark, from day one I have said the same thing, I wouldn't run a blend unless there wasn't a full syn option. There was some confusion on Fram ultra back in the day about if it was full syn and that is why I ran it, but I wouldn't run a blend is my forever opinion. Now many guys with run paper and say it's great, so it is just my opinion on it. I would run it over paper, but I wouldn't run it over full spun glass or poly. puro boss or carquest EP is my choice.

Castrol synthetic compared to Fram ultra synthetic oil filters

In this video you will see a comparison between 2 synthetic oil filters. One is a true synthetic and the other pretends to be a synthetic, I'll let you to de...

youtu.be

I have one of the Puro Boss, but got scared because I saw somewhere that said it might not be as good as wished.

Still have that and a Fram XG2, got about 4500 miles to go on this OCI, then have to decide if gonna run RedLine 5W-30 here on out.

 

[HEMIMANN]

I have one of the Puro Boss, but got scared because I saw somewhere that said it might not be as good as wished.

Still have that and a Fram XG2, got about 4500 miles to go on this OCI, then have to decide if gonna run RedLine 5W-30 here on out.

Ed, you're always good with Red Line 5W-30 except in cold wearher.. The issue was when they moved and it was hard to find and over priced. Apparently that period is over with. Now the problem is First Brands bankruptcy. No more Fram or Royal Purple. Seems CarQuest is a new quality find. I don't recall who makes those.

 

[Burla]

I have one of the Puro Boss, but got scared because I saw somewhere that said it might not be as good as wished.

Still have that and a Fram XG2, got about 4500 miles to go on this OCI, then have to decide if gonna run RedLine 5W-30 here on out.

Where did you hear that? Go back post #3427 and #3429, looks good to me. We do have the lab test that put it ahead of wix XP spun glass and below Fram ultra and RP in filtration microns, but I have no information this filter is not good, so if you have any let us know so we can verify. And post 3429 has it at the top for filtration. I'm just one guy, many people like those m1 filters, I just don't buy into blended oil or oil filters, unless there aren't other options.

 

[HEMIMANN]

Mike a later test showed Puro Boss as a rock catcher. Going off memory, it's documented somewhere.
Don't recall if Lakespeed or Project Farm did the head to head comparisons.

 

[Burla]

These are the particles that made it through and their size of the 4 filters that were tested... It's very interesting when you see what comes through even after a decade when we called RP number 1. You can still see everything that comes out with testing it is king, but now we also see the newer puro boss lots of potential.

I would like to see the test and if it is new puro boss, I haven't seen it, so someone find it would be great.

 

[EdGs]

Ed, you're always good with Red Line 5W-30 except in cold wearher.. The issue was when they moved and it was hard to find and over priced. Apparently that period is over with. Now the problem is First Brands bankruptcy. No more Fram or Royal Purple. Seems CarQuest is a new quality find. I don't recall who makes those.

Don't have to worry too much about that here in SWFL. This is about the coldest I've seen it, and that is rare.

I was running RedLine 5W-30 at the time, my first time using it.

 

[EdGs]

Don't have to worry too much about that here in SWFL. This is about the coldest I've seen it, and that is rare.
View attachment 585283
I was running RedLine 5W-30 at the time, my first time using it.

Also, since then, I've done 5500 miles on Valvoline R&P 5w-30, and about 1000 miles on my second change with the R&P. Wanted to mainly see if it might help with cleanup since I left the bottom end untouched when I did my cam and lifters.

Hopefully, gonna go back to RedLine at 220k miles.

 

[HEMIMANN]

Also, since then, I've done 5500 miles on Valvoline R&P 5w-30, and about 1000 miles on my second change with the R&P. Wanted to mainly see if it might help with cleanup since I left the bottom end untouched when I did my cam and lifters.

Hopefully, gonna go back to RedLine at 220k miles.

Some guys had piston slap on startups at temps as high as 50 degrees with Red Line 5W-30.

We had been changing between summer and winter oil 5W-30 and 0W-30, but driving so few miles these days I've consolidated down to HPL Super Car 0W-30 all year. Uses a shear-resistant VII additive, has a bunch of moly additive. Base oil is all PAO, so unsure if lack of polyol ester Red Line adds will work the same on Hemi tick. Willing to try it. I bought 3 cases.

 

[Burla]

The PurolatorBOSS oil filter line debuted in November 2015. However, the line underwent a major redesign that updated its filtration efficiency specifications from 99% at 25 microns to 99% at 46 microns. Additionally, in early 2025, Purolator released an upgraded, rated for up to 20,000 miles of engine protection.

So what is the date on any info, is it old or new? That oil filter video is two years old a couple years after the redesign.

That was their first oil filter test.. The good news was puro boss all around performance, good for filtering and flow, again this was after the redisign, the old pure boss was not good at flow according to my ticking truck. They upgraded their equipment and then produced the last video that tested puro boss as #1 against 4 top filters.

Best Oil Filters of 2024 (Engineer Tested) - Amsoil | Mobil 1 | Mann | K&N

We tested 4 of the best oil filters to see which one was the best (Amsoil | Mobil 1 | Mann | K&N). We simulated hot and cold temperatures, their ability to ...

youtu.be

.

 

[Curmudgeon]

@Burla - This timeline has me confused. The video posted was uploaded 2 years ago, was that the "old" PB or the "new" one?

I am SO glad I am currently well-stocked on filters, I'm just trying to keep up with all the changes. I think Ramforum needs it's own lab!

 

[Burla]

I'm not sure on PB redesign date. I believe that last graph test was old puro boss but those are new ones. The filter housing changed, so you can tell those tests in video are after redesign.

 

[EdGs]

Going from 99% @ 25 microns to 99% @ 46 microns is a step down in my book.

Am I looking at it wrong?

 

[Curmudgeon]

I'm not sure on PB redesign date. I believe that last graph test was old puro boss but those are new ones. The filter housing changed, so you can tell those tests in video are after redesign.

If I'm reading the "oil filter tea leaves" correctly, it looks like Puro redesigned and loosened the filtration to move away from excellent filtration and towards longer filter life by being less likely to clog and keep flow going.

This leads to new packaging with easy-to-understand numbers like, "now good for 20,000 miles". Unfortunately, far too many folks will see this as some sort of improvement.

 

[Burla]

I can make a filter 100% at 10 microns no problem, but it wont flow, is that a step up? Like I said, the old puro boss issue was flow, still have one of them. Now, having said that, those tests also NOW have the filtering better then anything even RP. Manu ratings are one thing, tests are another.

 

[JHoward]

I have one of the Puro Boss, but got scared because I saw somewhere that said it might not be as good as wished.

Still have that and a Fram XG2, got about 4500 miles to go on this OCI, then have to decide if gonna run RedLine 5W-30 here on out.

I've used the PUREOLATOR Boss for many years without issue. I started using the Royal Purple 20-820 because it was the go to oil filter for superb oil filtration and quality.

It looks like now, the PURILATOR Boss is becoming the go to oil filter?

 

[Burla]

I've used the PUREOLATOR Boss for many years without issue. I started using the Royal Purple 20-820 because it was the go to oil filter for superb oil filtration and quality.

It looks like now, the PURILATOR Boss is becoming the go to oil filter?

I believe so
Dub you see yourself in the new rumble bee someday?

 

[Burla]

Maybe someday we will get numbers on filters that have 10k miles on them, that is what I attempt to promote. Filters that will filter better at the end of an interval then other filters, and most of that is theory. Will poly be as good as spun glass at mile 10k? My guess is spun glass filters as good at any mileage as mile 1 assuming capacity is there and oil acidicity didn't come into play. I'm not as sure with poly, it's a different type of media.