RYCO Z631 question

[JEEPaul]

I've read the posts regarding the Z631 oil filter not having some type of internal valving when compared to a mopar filter. Although the Z631 does have an anti-drainback valve. I've also looked inside a Z596 and the inside certainly looks different. Anyone know why RYCO would specify the Z631 for the 3.7 KJ if it's missing a vital component? Given that it sits almost upright in the 3.7 I wonder if it's an issue anyway.

I only ask because before I purchased my KJ I asked that the dealer do an oil change. (most of my servicing equipment is 1000 miles away). Interestingly enough, a Jeep dealer did the service, and it still has a ryco Z631 filter on it.. they certainly changed the oil, but I forgot to check the filter brand beforehand.

Any thoughts/comments?

[barryh]

I have used the Z631 for about 12 months and have just changed to a Mopar. I must say that I never noticed any difference-- no rattles on start up or any other problems. Your point that the filter is mounted fairly upright may be the factor in having no problems. I have just bought half a dozen AC Delco filters from the US for about $8 each so that will be my next direction for filters and I am happy not to be feeding the local stealerships. barryh

[kim.beveridge]

Hi Barry

How have the ac delco filters gone for you. Do they have the internal valve (like the ryco z596)? What website did you purchase them from?

Thanks
Kim

[barryh]

Hi Paul
I can't help you with the ac delco performance as I have been seriously out of action with my hands(tendons) for a few months and I really have not driven the Jeep. Looking at them, all I can say is that they are different to filters I have for a 240z, 300zx,Mazda3 and 200sx, but I do think they have a form of drainback valve--can't be sure though. I chose them because they are a GMH brand and I have had my share of Holdens over the years. As I indicated earlier I have used the Ryco previously with no problems at all so I am not at all worried that they will not suit.
I bought them at Car Stuff-Liberty Parts in US and as I remember they had at least 10 brands for you to choose from, with a range of prices.(none as dear as genuine here).
I bought a heap of genuine parts at Jeep Parts USA at really great prices--you need to download a parts list online. Of course the delivery adds significantly, but for my parts I was still well in front. I had Bongo deliver in about 6 days. barryh--Adelaide

[nzoliver]

Hi,

A Jeep dealer put a Ryco filter on? Not allowed as far as I know. Ryco filters are NOT what I would put on any car! Jeep dealers have to use Mopar bits. The Mopar filters are good and they ain't expensive.

[JEEPaul]

I'm fairly sure the Jeep dealer didn't even change the filter. Anyway, my wife picked up a couple of mopar filters from Mansfield in Brissy when she was up there, and i've since fitted one with a fresh oil change.

Speaking of oil changes, just as i was preparing to get an "oil bath" under the car when undoing the filter I was pleasantly surprised by the KJ's unique little oil drain channel under the filter adapter. bloody good idea..

[kim.beveridge]

Hi.

I am doing my first oil change, currently there is a ryco 596 filter being used, as that's what was on it when I got the jeep. I went to a jeep dealer to get a new filter and they gave me a filter cartridge which goes inside the filter housing (which I had not seen before). I explained that there is a ryco filter on it right now and I don't have the original filter housing. So they gave me a price on the original filter housing to get it back to standard and that was $600, which is crazy.

Does this sound right?

Can I get a second hand filter housing? Or should I just use an after market filter like the Ryco one?

I have read about the difference between the ryco 631 and 596, but also last post said that ryco is not a good one at all.

What should I go with?