I've been doing a lot of reading and research about oil filters. At first I thought it would be a great idea to use a Mopar oil filter on my 1971 Duster slant six. However, after reading much, I've determined that better filters can be had (and for less money) as long as I'm willing to forego the Mopar logo. It seems that Wix and Purolator both make affordable good quality filters. My question is this; since both of these brands offer two different size filters which will physically fit on my engine, is there a preferrable size??? short or tall??? They all offer anti-drain back capabilities. One more thing I would like to ask, has anyone ever seen the replaceable cartridge type oil filter used on a slant six? I found a Mopar part number 2532756 which is supposed to fit Chrysler six cylinder engines from the mid 60s thru 71. Would this filter be the correct equipment on a factory original restoration? I'm sure this has all been discussed here many times before but I am new and I apologize if I'm bringing up and old issue. Thank you for your time.

You make it sound as if you wish to keep your Duster as factory original as possible. I can see that, if you're going to enter it into a concours car show, where points are lost if you don't have the correct date-coded, belts, hoses, filters, etc.

From a practical standpoint, having an aftermarket filter on your original car isn't going to undermine it's possible collectability, as properly marked filters are still available for it.

I'd say go ahead and put a Wix filter on it, unless you ARE going to enter it into a concours show.

The tall or short filter was more of an application thing than an engine thing. If the tall one will actually fit into the somewhat tighter engine bay of your Duster, then use it.......it's got more filtering capacity.

The slant is recorded as being used in big trucks, all the way up to the D600, 2-ton, as well as many agricultural uses. Many of those were considered commercial use, and most likely got the cartridge-type filter. (An assumption on my part.)

I think the "newest" vehicle I ever had with a cartridge filter was a '64 Chevy Impala, 327 engine. The cartridge filters pretty much went away on passenger vehicles after that year.

Roger

Thanks Roger! I never realized how interesting oil and filtration could be. I started reading just to find out what size I needed and before you know it I was getting a great education on the quality and performance differences of the various brands. Thank you for taking the time to respond to my question and point me in the right direction.

Vincent

Stay away from Fram. Wix and Purolator are two solid easily-available choices. The super-premium Wix for your car is the 51806, which has a built-in standpipe to keep oil in the filter after engine shutdown so you get instant oil delivery on restart even after prolonged sitting. That one can be harder to find than the regular 51515, which is the same filter but without a standpipe built in. Drop the initial "5" from either of these if you're shopping at NAPA, where Wix filters are available as "NAPA Gold" filters.

The ultra-super-duper premium filter is a Fleetguard LF3487. Expensive and usually a hassle to find.

The replaceable-element oil filter was a fleet-only option. They're interesting, but that's about all they are.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

dont understand the fram bashing...have used fram for many years with never a problem

Cut one open, and you will see.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

"don't understand the fram bashing...have used Fram for many years with never a problem"

http://minimopar.knizefamily.net/oilfilters/index.html

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obliquely-inclined state of mind

…and me, I don't understand why I should wear a seat belt. Have been driving for many years with never a crash.

Don't understand why I shouldn't smoke cigarettes, either. Many people smoke 'em for decades without getting disease.

Also, I've been shaking my left hand exactly four times at an angle of 88° over a green carpet every third Friday at 12:17 or 2:31 in the afternoon since I was nine years old, and I've never seen a purple crocodile so it must be working.

Do you begin to understand the problem with your logic?

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

I don't get the carpet thing............

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

hey dan does the carpet thing work for pink flying elephants too????? LOL

I'll splain: The fact you've not (yet) experienced an engine failure due to poor oil filter quality doesn't mean it's a good idea to use inferior oil filters when good ones are available for about the same price, number one. Number two, how much life has been taken out of your engine by inferior oil filters? You don't know. You can't. A slant-6 is an exceedingly durable piece of machinery, but that doesn't make it smart to abuse it or use inferior parts.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

I always strain my oil through green carpet. Never low-pile, always shag: more surface area to catch the ground up oil pump gear pieces...

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obliquely-inclined state of mind

i use astro turf, no strings or fibers to worry about, synthetic is the way to go

I use the fram to catch the small partcles, then strain again through a coffee filter, add some Willamette Hops to the 10W-30 malt and fermet for about 3 months in the oil pan...drain and bottle, then leave in a cool dry place with even temperature for another year...

Sorry couldn't resist.

-D.Idiot

Actionbac carpets are the norm. They use a mix of SBR latex and calcium carbonate for adhesive and filler for the secondary backing attachment.
Some cheap stuff uses filtered dirt.

"DID YOU TELL'M ABOUT THE TWINKIE?"

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick