I use the Mobil 1, K&N, they are great filters.

 

One more thing. Amsoil filters are not the best filters out there by a longshot. They are good, but nowhere near the quality of the Ultraguard, Mobil 1 or K&N. Those three filters use a fully synthetic filtering media, while the Amsoil uses a blend, yet they cost about the same. Amsoil has fallen behind the times, their filters were one of the best many years ago, but not anymore.

 

I use the Amsoil filters, can't beat them IMO.

 

Gosh, Just bought a six pack of these from GMPartDirect! So, I will be willing to let some these highly limited edition filters go for ...... $20/each, while they last! Call 1-800-screwed and put in your order now...operators are waiting. :D

 

Well, I have 4, UPF 44 filters, left. So I ordered a dozen more. I should get those before warehouse stock is depleted. That ought to hold me for a while. :D :D

Good luck.
Mark

 

If you mean the truck filter UPF58, I would highly recommend against that since it would hang down below everything underneath, and be susceptible to be punctures or struck.

Also i think its the whole Ultraguard lineup thats going away. Not sure about that tho.


[Modified by kewlbrz, 11:37 AM 11/28/2001]

 

I use the Moble 1 premium filter, M-107 filter, too. It "looks" very good and is avialable at most Auto Zones while the UPF-44 is not.

 

Guys,

CALL AC DELCO!!!!! WRITE THEM!!! DO WHATEVER YOU CAN TO SAVE THESE AWESOME FILTERS!!!!

Shawn

 

On the LS1 f-body, the UPF58 filter sits flush with the bottom of the oil pan, so I assumed it was the same on the C5. I used this size of filter for 2.5 years on my Formula and never had a problem, even with the car sitting lower (Eibach springs)

 

Several months back Vette Vues magazine did an artical which showed the filtering performance of many of the filters available, along with a detailed explination of AC Delco's offerings. AC has a silver filter which has capabilities somewhere in between the blue and the gold its part number is SPF44. Keep in mind the oil and filters today are such an over kill compared to say the sixties, especially when you consider the minimal blow by and unleaded fuel etc..I bet delco will bring back the # with a little pressure from us. You have to feel pretty good if this kind of thing gets you down. Matt :cheers:

 

Just bought a case (12) of the UPF44's from a local distributor for $8.80 ea. Should hold me for a while. I have heard that the premium FRAM filter (the one that comes in a sealed can) isn't bad. I have friends who run them on sand rails in high dust environments and seem to do well. Consumer reports ran a comparative test many years ago, but I haven't seen any credible data recently. Has anyone else?

 

I just e-mailed them. Address is: http://www.acdelco.com/html/gt_prod.htm

 

They stopped make the Duraguard Silver AC Delco filter a few months back actually, so that one isn't even available either. :(

As far as the premium Fram filters go, they still suck, as they still use cardboard endcaps and a really lame plastic bypass valve that sticks open too easily. The only difference on the premium Fram filters is that the can is supposed to have a higher burst strength and there "might" be a bit more filtering media, but that's about it.

 

Just sent Delco an e-mail asking that it not be discontinued. Note: If the entire "Gold" series is being discontinued, I doubt very seriously they would keep just the UPF-44, no matter how many people e-mail them. :(

 

Patman,

I am in the Auto Parts business and have cut open the UPF44 & the new FRAM X2 filter. Both of them are high quality and use the same technology. The fram X2 filters are priced like the A/C Delco UPF44.

Get one of these in your hands and no one will miss the UPF44. Do your home work and check out there web site.(www.framx2.com)

Bill

 

As a matter of fact, I have done my homework on oil filters (spent more hours than you can imagine trying to find out info on them, as well as cutting a few apart as well), and I did hear about the new Fram x2, but I was pretty sure I heard they still used cardboard endcaps as well. Since you have torn one apart, you could confirm or deny this. We don't have these filters in Canada anyways, but I'd still be wary of buying anything made by Fram after so many years of bad oil filters out of that company. By the way, I wouldn't exactly put the Fram x2 in the same league as the Ultraguard. The Ultraguard is 98% efficient at 8-10 microns, while the Fram x2 is 96% efficient, but in the 10-20 micron range instead. Big difference there. Also, the Fram x2 uses a synthetic blend filtration media, which is not as good as the fully synthetic fibers on the Mobil 1, K&N and Ultraguard Gold.

Also, the multipass efficiency numbers are the more important numbers for an oil filter, and Fram never tells those numbers (since they know most of their filters fail soon after being put into use because of those cardboard endcaps and cheap bypass valves) The Ultraguard Gold, if I remember correctly, is around 95-96% efficient in the multipass test. It truly was the best spin on oil filter ever made, and it's sad to see it go.





[Modified by Patman, 7:59 PM 11/29/2001]

 

Got on the phone today and located 18, purchased 12 at $11. The markup has started. Ken Fichtner Chev. and the LAPD did not have any. That should last me about 6 years.


[Modified by wallstAL, 6:57 PM 11/29/2001]

 

Patman,

Fist you will never find any filter on a NHRA Top Fuel car or Funny car other than Fram. And neither the NHRA or the XG Fram filter has cardboard end caps.

I am trying to give good information to other forum members is my goal. When I cut open the Delco and Fram filter they were made the same.Metal mesh around a superior filter paper element. Silicone seal,much better valves ect..

I use both the Delco and Fram and I will not fret a second when the Delco one is gone, since the Fram is an excellent filter. If any Forum member see one they will be impressed.

Any Forum member should check out there web site and make ther own decision.www.framx2.com

My point was that your statement that Fram is junk is NOT good information..NHRA 6,000 H/P engines due not think so.I would NOT put a regular Fram filter on my Vette,or a regular Delco Filter..You get what you pay for..

Bill

 

I would imagine that NHRA engines have certain specs for the filters they use and that Fram would have to meet these. This does not always carry over to retail but it sounds good :)

 

Even if NHRA racers use Fram filters, that doesn't make them good for street use! Race cars and street cars have different needs, for one thing, it doesn't even matter all that much if a drag car has a filter that takes out 10 micron particles, it's goal is not to restrict oil flow. They are going to change the filter every run anyways, something that a street car won't be doing. So what works for a 1/4 mile won't necessarily be good for 3000 or 5000 miles for that matter. Do you think they use Fram filters because they are the best out there? No! It's all marketing my friend.

Simply put, like I said before, the Fram x2 is not in the same league at all as the three premium filters I mentioned. I looked again at their site and guess what, they still are using the "silicone" bypass valve. You know that is the same one in their cheaper $2 filters! And if you do a search on the web on Fram filters, you'll find many pages where people tested those silicone bypass valves and found that they stick open very easily. Do you want a filter whose bypass valve sticks open on the street? I know I don't! And a premium paper/cellulose blend like in the Fram x2 is nowhere near as good as the all synthetic elements in the Mobil 1, K&N and Ultraguard. I understand you are trying to help people out, and so am I. I've been advising my fellow LS1.com members for years on oil filters, and I've never recommended Fram because for many years they have been the very worst possible filter you can find. It's good that they finally got rid of the cardboard endcaps on the X2, that is a step in the right direction, but they are still not all the way there yet. Until they go to a fully synthetic filtering media, and a metal bypass valve of solid construction, I cannot in good conscience recommend this filter to anyone.