Oil filter, which one does this use?

[rocketwheels]

.....my MJ has the decal on the firewall indicating "m20x1.5 oil filter. I remember that sometime in the 80's -90's jeep went from a standard thread to metric on the filter. My problem is the ACDelco filter on my jeep has lost the decal with the part number and the only fram indicated for the '88 4.0 does not fit, looked up the wix number for a '91 Cherokee4.0 and thought different , it doesn't fit either. What are the brands and part number in use in your truck? :dunno:

[87manche]

that's the metric threaded one.

mobil 1 m1-207 should be the right part number to cross reference from.

[Eagle]

Purolator 14619.

 

Be sure some well-intended (but dumb) previous owner didn't "upgrade" to use the new filter, but not change the decal. On an '88 4.0L the oil filter should mount upside down, with the top leaning slightly outboard toward the passenger side fender.

 

The newer SAE-thread filter mounts horizontal, with the top of the filter facing back towards the firewall.

 

Whatever you do, DON'T use a Fram oil filter.

[Pete M]

Whatever you do, DON'T use a Fram oil filter.

 

Amen to that. :D

[carnuck]

Fram has been the death of at least 12 AMC motors I personally know of in the past year. (definitely stay away from PH11!) I think (WIX made) NAPA 1626 is the early filter and 1085 in the later metric one. That's the Gold series at NAPA and the 9xxx is Nascar (aka spinflow) and 2xxxx is Silver series (about equivalent to Fram's mid grade filter)

[rocketwheels]

...whats up with frams? are they the one with the check valve that keeps them full or oil to avoid dry start....the check valve stick shut and starves the motor? Ive heard of that but didn't know which filter brand it was. I've used frams for years an everything else and never had any problems.

[87manche]

...whats up with frams? are they the one with the check valve that keeps them full or oil to avoid dry start....the check valve stick shut and starves the motor? Ive heard of that but didn't know which filter brand it was. I've used frams for years an everything else and never had any problems.

they're made from cardboard on the inside, the cardboard fails, the filter media collapses and the motor dies.

I used fram on an old plymout sundance I had with the mopar/mitsubishi 2.5. Had the worst vlavle train clatter you could think of when I started it in the morning.

Changed filter brands, valve noise gone.

The anti drainback in the fram sucked

[Pete M]

A failed Fram almost killed the engine in my 88. The oil pressure went away completely. I consider myself extremely lucky that I could still limp along and that my engine survived. (although I've lost count at the number of times I almost lost this particular 4.0 and she still keeps puttering along) :D

[87manche]

A failed Fram almost killed the engine in my 88. The oil pressure went away completely. I consider myself extremely lucky that I could still limp along and that my engine survived. (although I've lost count at the number of times I almost lost this particular 4.0 and she still keep puttering along) :D

reason enough to carry a full set of fluids and a new filter.

I learnt that lesson in uwharrie, when my coolant system exploded.

Now I don't go anywhere without 6 quarts of motor oil, filter, gear oil, atf for the case and coolant.

[carnuck]

Fram filters are loosely tied element inside a can. I opened the one up from my '73 J4000 (came on the 304) and it was collapsed, blocking the oil flow so the motor clattered badly. The one I took out of my Ford van imploded and CHUNKS of the filter medium are stuck inside the oil passages of the 460 motor! (I get no oil pressure reading at the factory or mechanical gauge with a brand new pump and the lifters are starting to collapse from lack of oil) Now I have to take off the Wix filter on it and take out the oil pressure sender to see if I can blow the clog out with air pressure!

[Eagle]

Look at it this way: Wal-Mart sells Fram.

 

Need I say more?

[Pete M]

reason enough to carry a full set of fluids and a new filter.

I learnt that lesson in uwharrie, when my coolant system exploded.

Now I don't go anywhere without 6 quarts of motor oil, filter, gear oil, atf for the case and coolant.

 

I had 6 quarts on me, but at the time I just couldn't have fathomed needing a new filter for only a weekend trip. Now I carry a filter too. And after a different "learning experience", I started carrying a spare oil pan gasket and rear main seal. And after another lesson I started carrying 5 gallons of water and a bottle of radiator sealer. And after a... well, the list goes on and on and on...