Oil Filter Thread

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hemihustlin

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received my latest shipment of oil filters from Amazon. this is the 3rd in a row of the xg2 that I have received that says perfect seal on the box instead of syn media (or whatever it said before I forget now)

but like the 2 before it this xg2 is still wire backed purpleish synthetic gauze looking media

the xg4967 for the gfs Toyota matrix is yellowish beige media with more of a folded paper style appearance and no wire backing
 

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JHoward

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I found this "Life Time" oil filter while searching online for Royal Purple oil filter(s). I've never heard of or knew such oil filter existed. I'll just keep on doing oil changes with new oil filters the old and trusted way.
 

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ramffml

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Just picked up a fram xg2 and xg10060. What a size difference, that xg2 is a big girl, hoping it will fit.

The little holes on top seem smaller on the xg2 though, that may have already been discussed but is that a "flaw" of the bigger filter?



fram xg2 vs xg10060.jpgfram xg2 vs xg10060-b.jpg
 

BLUKTY2

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First and foremost, I hope that this is the appropriate place to post this; I thought that it is and therefore starting a new thread was't necessary. It details my experience with RP 20-500 filters. After all of the reading that I have done on this particular thread (thanks to all that have contributed!) I decided to purchase a couple of these filters thinking that they are one of the best out there.

A little background: I have been monitoring the vehicle parameters via the EVIC since I took delivery of the truck new. The first several oil/filter changes were performed by the dealer so PUP 0W-40 and Mopar filters were used. Then I started doing my own changes and used Amsoil SS 0W-40 and Mopar filter. Oil pressure and temperature were consistent with each combination of oil/filter for many thousands of miles. Only once did I exceed 5,000 miles OCI. I realize that the EVIC isn't accurate but I think it is CONSISTENTLY inaccurate!

This last spring I changed my oil/filter and used one of the RP filters for the first time (same Amsoil SS oil). Prior to installing it, while oiling the gasket, I noticed a fairly heavy and very obvious layer of metal "dust" particles covering the mounting plate. Like a fine sawdust but obviously metallic. I ran a finger over the plate and could easily see and feel the metal particles. It was easy enough to clean them off before installation but I couldn't help but wonder what was on the inside of the filter that I couldn't see or clean off. I checked my second filter and it too had the same particles covering the base. I chocked it up to a lapse in quality control but was not initially impressed.

For the first couple of thousand of miles all readings were normal. But then, on an extended several day road trip, I noticed that the oil pressure had dropped by 8-12 psi across the RPM range, regardless of oil temperature or any other variables. I didn't have much choice but to keep driving until I returned home but I didn't like what I was seeing. By then I had just under 3,500 miles on the oil/filter. All along I suspected the filter, as it was the only variable.

Once home I changed the oil and instead of using my second RP 20-500, I got a Fram XG-2 to use instead of the RP filter. Oil pressure has returned to normal.

I realize that this is not necessarily conclusive (this is my first time using the XG-2) but I still highly suspect the RP filter. Relief valve failure??? I really don't know but the oil pressure drop along with the metal dust on the plate doesn't leave me with a warm fuzzy feeling towards RP filters.

I just wanted to put this out there for everyone. I don't intend to knock RP products but just want you all to be aware. YMMV.

Thanks all for all of the great information found here!

Pete
 
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Burla

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First and foremost, I hope that this is the appropriate place to post this; I thought that it is and therefore starting a new thread was't necessary. It details my experience with RP 20-500 filters. After all of the reading that I have done on this particular thread (thanks to all that have contributed!) I decided to purchase a couple of these filters thinking that they are one of the best out there.

A little background: I have been monitoring the vehicle parameters via the EVIC since I took delivery of the truck new. The first several oil/filter changes were performed by the dealer so PUP 0W-40 and Mopar filters were used. Then I started doing my own changes and used Amsoil SS 0W-40 and Mopar filter. Oil pressure and temperature were consistent with each combination of oil/filter for many thousands of miles. Only once did I exceed 5,000 miles OCI. I realize that the EVIC isn't accurate but I think it is CONSISTENTLY inaccurate!

This last spring I changed my oil/filter and used one of the RP filters for the first time (same Amsoil SS oil). Prior to installing it, while oiling the gasket, I noticed a fairly heavy and very obvious layer of metal "dust" particles covering the mounting plate. Like a fine sawdust but obviously metallic. I ran a finger over the plate and could easily see and feel the metal particles. It was easy enough to clean them off before installation but I couldn't help but wonder what was on the inside of the filter that I couldn't see or clean off. I checked my second filter and it too had the same particles covering the base. I chocked it up to a lapse in quality control but was not initially impressed.

For the first couple of thousand of miles all readings were normal. But then, on an extended several day road trip, I noticed that the oil pressure had dropped by 8-12 psi across the RPM range, regardless of oil temperature or any other variables. I didn't have much choice but to keep driving until I returned home but I didn't like what I was seeing. By then I had just under 3,500 miles on the oil/filter. All along I suspected the filter, as it was the only variable.

Once home I changed the oil and instead of using my second RP 20-500, I got a Fram XG-2 to use instead of the RP filter. Oil pressure has returned to normal.

I realize that this is not necessarily conclusive (this is my first time using the XG-2) but I still highly suspect the RP filter. Relief valve failure??? I really don't know but the oil pressure drop along with the metal dust on the plate doesn't leave me with a warm fuzzy feeling towards RP filters.

I just wanted to put this out there for everyone. I don't intend to knock RP products but just want you all to be aware. YMMV.

Thanks all for all of the great information found here!

Pete
Thanks for posting the experience, the 20-500 has a very small experience base, so much of what "we" think about it is theory. Telling the truth is never bashing a product, so we want to hear everything good or bad about every product, even amsoil ea/royal purple clone filters. Here is the bad news, there are no filters that do not have bad info attached, even the RP. Fram Ultra has never made up it's mind if it is a blended filter or synthetic, same as Mopar srt filter. Wix XP is a rock catcher, and puro synthetic made my truck tick and clearly has no flattering filtration. In a nutshell, there is no perfect filter. The good news, it is a small number of filters you should chose from because paper filters simply do not cut the mustard. So once you drop paper as an option, which in my opinion would also include blends, then it gets real simple, chose the best filter for you knowing you are picking the best of two evils.

It seams like the two best of the worst evils is the xg2 and the rp 20-820 imo, thanks to the people like you that have added new experiences on the 20-500, we have a lot of new info on it, and imo I prefer the xg2 as a second choice to the 20-820. This was a question since the outage of the 20-820, and I do admit I got that one wrong. However, information is constantly changing and the reason I didnt have the xg2 as my second option, was because in my wife's truck I had them stored next to a RP, my wife's car is a cartridge filter, so there was no can, and the media had stiffened in the xg2 and not the RP. So just as heat cycles in oil cause paper filters to stiffen, heat cycles in my wife's truck stiffened fram ultra cartridge filter. So supposedly the new ultra is 100% synthetic, something they also said about the last one, this waver on the commitment to synthetic media is the only real knock I see on xg2, but it isnt a small thing imo.
 

HEMIMANN

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This is certainly a strange field report. I've seen no such engine behavior, I'm on my 2nd RP 20-500 oil filter. Could it be a defective filter?

For those who don't know me, the RP 20-820 and Fram XG2 oil filters are too large diameter to fit my truck - I posted pics to show interference a while back.

The only larger filters that fit in my truck are RP 20-500 or Fram XG10575.
 

BLUKTY2

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After a bit more run time, oil pressure remains consistent and what I am used to seeing over the past 5 years. I am convinced that it was a defective filter, although no way to absolutely prove this theory. To me it seems that this could probably happen to any filter brand, just one of those things. But for now I will stick to the XG2's until something better comes along. Just the metal particles on the base of the RP filter was enough to make me question my decision to use it. After all, the sole purpose of an oil filter is to remove contaminants from the engine oil, not add to it!

I will post back if the oil pressure takes a dive again. If it does, I will obviously need to look beyond the filter for the cause as I think the odds of having two defective filters in a row is pretty slim.

Thank you Burla and Hemimann for your comments.
 

HEMIMANN

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I think you're right. I've had a few filters go wiggy over the years of various types. One on my tractor actually started blowing oil out from the rim gasket. Put on another filter of exact same brand and model - no leaks. Defects can happen in any manufactured product. A quality manufacturer keeps these to a minimum (six sigma quality = 1 defective product per 1 million produced).
 

2022nwram

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As promised here is the difference between the three. Don’t have a rp 20-820 to share. Well I do but it’s still on my truck from last oil change. To me it looks like the holes on the fram look smaller but it has more obviously. Also the fram looks to be bigger than the Amsoil.
Thanks for showing this pic, visual aid is always good. I have a 2022 1500 with the 5.7 and dont think the rp 20-500 is going to fit but that EA011 looks like a candidate. With very limited room for the height of the filter I am going to order a few different ones to make sure I have something that will work when its time to do the first oil change.
 
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JHoward

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Curiosity got the best of me, so I purchased a FRAM Ultra Synthetic XG2 and cut it open to look/compare to a Royal Purple 20-820 that I had cut open awhile back.

I'm not any type of
Engineer having neat little measuring instruments/gadgetry and so I just used an old tape measure for simple comparisons.

My first look was at the thickness in the filter media of the RP (white media) and FRAM (pinkish media) being that the RP is much thicker but shorter in width/length to the FRAM. Both have the wire screen backing. I don't know what type of filter media is used on the FRAM, but their website states a cellulose/synthetic type.

All the other comparisons appear to be about the same between each filter with minor difference(s) in hight and width and the holes in the filter cartridges. Both base plates look/feel the same. The can, imo on the FRAM isn't as sturdy feeing as the RP, but overall I would still consider using the FRAM Ultra Synthetic XG2.

This was just for a visual comparison purpose on my part from reading about these two filters here in the Forum and I shared some random pics for viewing.
 

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Burn2k12Ram

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Curiosity got the best of me, so I purchased a FRAM Ultra Synthetic XG2 and cut it open to look/compare to a Royal Purple 20-820 that I had cut open awhile back.

I'm not any type of
Engineer having neat little measuring instruments/gadgetry and so I just used an old tape measure for simple comparisons.

My first look was at the thickness in the filter media of the RP (white media) and FRAM (pinkish media) being that the RP is much thicker but shorter in width/length to the FRAM. Both have the wire screen backing. I don't know what type of filter media is used on the FRAM, but their website states a cellulose/synthetic type.

All the other comparisons appear to be about the same between each filter with minor difference(s) in hight and width and the holes in the filter cartridges. Both base plates look/feel the same. The can, imo on the FRAM isn't as sturdy feeing as the RP, but overall I would still consider using the FRAM Ultra Synthetic XG2.

This was just for a visual comparison purpose on my part from reading about these two filters here in the Forum and I shared some random pics for viewing.
You cut open a new 20-820? Worth more than their weight in gold soon if not already lol. Don’t look like they are being produced anymore. Great comparisons bro. Good stuff
 

HEMIMANN

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Curiosity got the best of me, so I purchased a FRAM Ultra Synthetic XG2 and cut it open to look/compare to a Royal Purple 20-820 that I had cut open awhile back.

I'm not any type of
Engineer having neat little measuring instruments/gadgetry and so I just used an old tape measure for simple comparisons.

My first look was at the thickness in the filter media of the RP (white media) and FRAM (pinkish media) being that the RP is much thicker but shorter in width/length to the FRAM. Both have the wire screen backing. I don't know what type of filter media is used on the FRAM, but their website states a cellulose/synthetic type.

All the other comparisons appear to be about the same between each filter with minor difference(s) in hight and width and the holes in the filter cartridges. Both base plates look/feel the same. The can, imo on the FRAM isn't as sturdy feeing as the RP, but overall I would still consider using the FRAM Ultra Synthetic XG2.

This was just for a visual comparison purpose on my part from reading about these two filters here in the Forum and I shared some random pics for viewing.

Thank you for doing this work and sharing with us. I am an engineer (retired), and we used the tape measure a lot for non-critical measurements!

@Burla efficiency test chart shows RP & Fram Ultra filters produce near identical high efficiency curves via particle size, so the real questions left are flow restriction and contaminant capacity.
Fram Ultra appears to have more media area, but does not advertise wound fiberglass as RP does. If Fram Ultra media is random matted, then perhaps RP does not need as much media due to higher flow allowed by winding (consistent hole sizing)?
 

JHoward

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You cut open a new 20-820? Worth more than their weight in gold soon if not already lol. Don’t look like they are being produced anymore. Great comparisons bro. Good stuff

Yeh, no kidding.

The RP was one that I had cut open awhile back before they became non-existent. I wanted to take a look because I've never seen the inside of one ... I wish now that I hadn't done that. I can solder it back together and give it to you if you want it, but no guarantee it'll hold up ...jk
 
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Burla

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Curiosity got the best of me, so I purchased a FRAM Ultra Synthetic XG2 and cut it open to look/compare to a Royal Purple 20-820 that I had cut open awhile back.

I'm not any type of
Engineer having neat little measuring instruments/gadgetry and so I just used an old tape measure for simple comparisons.

My first look was at the thickness in the filter media of the RP (white media) and FRAM (pinkish media) being that the RP is much thicker but shorter in width/length to the FRAM. Both have the wire screen backing. I don't know what type of filter media is used on the FRAM, but their website states a cellulose/synthetic type.

All the other comparisons appear to be about the same between each filter with minor difference(s) in hight and width and the holes in the filter cartridges. Both base plates look/feel the same. The can, imo on the FRAM isn't as sturdy feeing as the RP, but overall I would still consider using the FRAM Ultra Synthetic XG2.

This was just for a visual comparison purpose on my part from reading about these two filters here in the Forum and I shared some random pics for viewing.
thanks great post
 
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