Switched to Redline 5w30

skates15 said:

I read some of the thread and it looks like RP 20-820 should be okay, thanks for the heads up on the 10-48.

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I need to read that thread again. Main takeaway from that plus a few YT discussions I watched a couple years ago where they dissected and compared common brands was RP was generally higher quality. The devil is always in the details.

Unfortunately I think the 20-820 is too long for 4x4. I’ve wasted money on a couple different filters over the years that never turned out to fit. Figures the one I have to use sucks lol.

Updating this to avoid spreading FUD. Given clog concerns of 10-48, 20-820 looks like the ideal filter for anyone running extended OCI. Most report it fits fine, I saw one report where it did not due to what sounded like an oil cooler being inserted above the filter mounting plate. Contrasted to that, if you have ~0.5" of clearance below the 10-48, you should be good for the 20-820 (this is all insight shared in the oil filter thread)... I just measured, and have about an 1".

I ordered another 20-820 from Summit, and have a 10-48 on hand just in case... so I'll verify on my next oil change, but just did it so will be a while.

The 20-500 is indeed too long as many have reported, I've verified that already. The extra length is the issue with the 5th gen steering rack/diff location.

Burla said:

I don't anymore, there are great stories of high mileage rams on nothing special oils. Also, if you ever get hemi tick it is nice to have that card in the deck. In theory, redline could keep hemi tick away, but with pricing and other factors I personally would run some cheap synthetic, maybe add biotech, and keep that 5w30 redline card for when you lose the hemi tick lottery. See the bioteck thread, it is coined poor mans redline, similar science less of it, I think it is a good compromise.

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I have been using Supertech 5-20 full synthetic and Z Max for 55k with the platinum Wix filter and have had no problems.

BlackSheepRebel said:

I need to read that thread again. Main takeaway from that plus a few YT discussions I watched a couple years ago where they dissected and compared common brands was RP was generally higher quality. The devil is always in the details.

Unfortunately I think the 20-820 is too long for 4x4. I’ve wasted money on a couple different filters over the years that never turned out to fit. Figures the one I have to use sucks lol.

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Filter is too long for my 23 1500 4WD?

Burla said:

If you use 5w30 you can get away with using a quart size biotech, 15 ounce is only 2-3 bucks less, dumb to buy this size even if you buy 32 ounce for two intervals. find and read the biotech thread in my sig, see poll results. You do have a chance to keep tick away, but if you read redline thread you know that is the best product at killing ticks as a % of trucks. biotech, about 50% effective, redline about 80, but read the polls. Biotech is 7 visc, 5w20 is usually about 9, so that is why I say if you use 5w30 you can get away with running 32 ounce. You could also try 15 ounce first, if that doesn't work, drop in rest of it.

So that is great about the redline, so if this experiment doesn't work you know you can go back.

And you are welcome, helping people kill hemi tick doesn't get old. I do not recommend mixing biotech and redline unless redline didn't kil the tick. It is fine to mix it as in the little bit you change oil with an oil change. It is compatible in this sense, it is just a "little" risky mixing ester products in a full sump.

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Thank you sir!

skates15 said:

Filter is too long for my 23 1500 4WD?

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I don't know what, if anything, changed from 2014 to 2023 but I currently have the RP 20-820 in my 5.7L 4x4. My local shop did the oil change but it sure looks roomy down there.

We have heard this before, but yet to get a picture on it, if the filter is too long or wide, can some post a photo so we can see what the block is.

Burla said:

We have heard this before, but yet to get a picture on it, if the filter is too long or wide, can some post a photo so we can see what the block is.

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Can't help but to think some people are trying to install this from the back side instead of the front.

Hopefully someone will comment on whether or not the RP 20-820 will fit a 23 1500 4WD and if so, if there is fitment wrangling you have to do.

Curmudgeon said:

I don't know what, if anything, changed from 2014 to 2023 but I currently have the RP 20-820 in my 5.7L 4x4. My local shop did the oil change but it sure looks roomy down there.

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They added a sandwich cooler,that fits above the filter somewhere around late 2016/early 17.

Wild one said:

They added a sandwich cooler,that fits above the filter somewhere around late 2016/early 17.

2012-2024 Ram Engine Oil Cooler 4893309AA | Mopar Online Parts

2012-2024 Ram Part # 4893309AA - Engine Oil Cooler

parts.moparonlineparts.com

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The bigger filter fits fine on my 2016 Express.

mdc1990zr1 said:

The bigger filter fits fine on my 2016 Express.

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Do you have the add on cooler though.There's 2 coolant hoses feeding it,and it's directly above your filter.Supposedly the very late built 16's started to get it,and by 17 it was on the majority of 5.7 Ram 1500's

Edit.............

skates15 said:

Hopefully someone will comment on whether or not the RP 20-820 will fit a 23 1500 4WD and if so, if there is fitment wrangling you have to do.

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99% of the time they fit, if you put eye balls on your filter and you have 1/2 inch clearance your good. The difference is 3.15 inches wide for 10-48 and 3.81 inches for the 20-820. The harder issue is sourcing 20-820. height is 3.75 for larger filter 20-820 and 3.62 for the 10-48, so it really comes do you have 1/2 daylight with the small filter, if so its gonna fit.

the 20-500 RP is taller but same width as 10-48 or real close.

Wild one said:

They added a sandwich cooler,that fits above the filter somewhere around late 2016/early 17.

2012-2024 Ram Engine Oil Cooler 4893309AA | Mopar Online Parts

2012-2024 Ram Part # 4893309AA - Engine Oil Cooler

parts.moparonlineparts.com

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My 2017 does not have this. Kind of seems to me that Mopar's "smarter than you" engineers recognized they do run the oil too hot

Forsakentalon said:

My 2017 does not have this. Kind of seems to me that Mopar's "smarter than you" engineers recognized they do run the oil too hot

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I don't know how much cooling there is with it,i think it's more of an oil heater then cooler,basically designed to help get the oil up to temp faster.If you figure the oil pump is moving in excess of 5 gallons of oil per minute,just how much heat does it remove from the oil???

BlackSheepRebel said:

I need to read that thread again. Main takeaway from that plus a few YT discussions I watched a couple years ago where they dissected and compared common brands was RP was generally higher quality. The devil is always in the details.

Unfortunately I think the 20-820 is too long for 4x4. I’ve wasted money on a couple different filters over the years that never turned out to fit. Figures the one I have to use sucks lol.

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The RP 20-820 fit in my 19' and fits in my 23'.
There is a wire loom that it tucked right beside the oil filter.
You'll have to finagle it up and out of the way to get the 20-820 to fit.
Just ensure it doesn't get pinched when tightening up the oil filter.

BlackSheepRebel said:

I need to read that thread again. Main takeaway from that plus a few YT discussions I watched a couple years ago where they dissected and compared common brands was RP was generally higher quality. The devil is always in the details.

Unfortunately I think the 20-820 is too long for 4x4. I’ve wasted money on a couple different filters over the years that never turned out to fit. Figures the one I have to use sucks lol.

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I spent most of the day yesterday re-reading the oil filter thread... sort of like slow distillation -- 120+ pages of rabbit holes, ******* contests, comedic relief, re-asking the same questions... and a bit of gold here and there (sorry for mixing metaphors).

As great as that was, I want to summarize what I cared about here to save anyone else that work (unless you're a ****** that enjoys 120-page forum threads):

RP 20-500 is too long for 5th gens
RP 20-820 is reported to work for 5th gens
RP 10-48 is OEM replacement size

10-48 has "issues", but that is based on a Amsoil TSB for the EA15K50 which is the RP 10-48 equivalent (EAO11 is the 20-820 equivalent).

The TSB basically says the smaller filter + extra fine media could clog. I didn't read that it has, and I've seen many cut open at extended miles without any sign of clogging... The TSB also says it's not been reported by customers, just a risk. Also won't damange the engine, since it'd just force the bypass to open, though that is obviously not ideal.

It sounds to me like this would only be an issue for peple trying to get max range out of filters in a 10k+ mile OCI world. For me, I always change at 5k. That puts my mind at ease, even for the 10-48.

When I read "issues" with the 10-48 I imagined yet another en****tification where they messed with the media, bypass failed, etc. I found none of that. RP/Amsoil filters are still near the top. One interesting set of data showed Fram Ultraguard having top efficiency, but I swore off Fram years ago (their ultra/synthetic line is proven to be great many places, this is a personal bias).

So based on all that, I am going to try the 20-820 and if that's too much of a bear stick with the 10-48 and sleep like a baby at night. I thought I tried the 20-820 years ago when I first got the truck and couldn't get it to fit, but may not have tried hard enough or mixxed that up with the 20-500. Many report it works, so I'll give it a go again and be even happier with the extra filter area if I can get it, but not at all worried about the 10-48 or Amsoil EA15K50 if that's all I can find at 5k OCI.

YMMV.

Fwiw, on my 2015 RC/SB 5.7 HEMI non 4×4 that has the electric power steering assist and the engine oil heater, the RP 20-820 isn't difficult to install.

The clearance is tighter and I install it going in from the "back side" ... I even prefill it with oil.

The RP 20-500 is the same diameter as the MOPAR 0339, but taller, where that filter will not fit my HEMI RAM ... been there, tried that.

In my humble opinion, volume wise, the RP 20-820 compared to the RP 20-500 are probably about the same.

I do think it's interesting that most can use the larger diameter RP -20-820, so that would be great if someone could snap a pic showing it doesn't fit there truck an post it over on the Oil Filter thread.

JHoward said:

Fwiw, on my 2015 RC/SB 5.7 HEMI non 4×4 that has the electric power steering assist and the engine oil heater, the RP 20-820 isn't difficult to install.

The clearance is tighter and I install it going in from the "back side" ... I even prefill it with oil.

The RP 20-500 is the same diameter as the MOPAR 0339, but taller, where that filter will not fit my HEMI RAM ... been there, tried that.

In my humble opinion, volume wise, the RP 20-500 compared to the RP 20-500 are probably about the same.

I do think it's interesting that most can use the larger diameter RP -20-820, so that would be great if someone could snap a pic showing it doesn't fit there truck an post it over on the Oil Filter thread.

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Thanks to hurting my brain and reading 120+ pages, I can share this is the solid answer on size differences:


The 20-820 is as good as it gets for anyone wanting to maximize filter media area (roughly correlated with canister volume). For once I'm lucky, since the 20-500 won't fit my 5th gen.

BlackSheepRebel said:

So based on all that, I am going to try the 20-820 and if that's too much of a bear stick with the 10-48 and sleep like a baby at night.

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Thanks everyone for the data dump. I will pick up the 20-820 and report back in 4k miles (a couple month) of any issues.