Oil Filter Info - ZR-1 Net Registry Forums

Gunny · 09-21-2011

Starting a new thread as a follow up to some earlier info concerning oil filters. In this thread it was mentioned that Marc H. had updated his oil filter testing results and could no longer recommend the Bosch 3401 due to the anti-drain back valve leaking. You can read his update here.

I've been using the Bosch for several years with no significant issues with the chain rattle issue until recently. The last 3 Bosch filters that I've purchased have been progressively worse with regards to chain rattle which makes me wonder if the filters are being manufactured differently, or by a different company.

So, to the point ... I just changed oil/filter about 3 weeks ago. The chain rattle is as bad as I've ever heard it and is present when the engine has not been started for an hour or so ... this is my personal confirmation of Marc's findings.

AC/Delco 970C ... tried to find it locally with no success. Talked to the parts guy at the local Advance Auto and it's no longer in their catalog ... he called AC/Delco headquarters and was told they had about 100 remaining. I don't know (since I wasn't on the phone) if that means they currently have only 100 or if they plan to make more, or what ... I'm just reporting my findings. Regardless, I asked him to order me some.

NAPA 1324 ... our local store does not stock them but they are having a 1/2 price sale on Napa filters this week. I ordered several at $4.28 each and should have them by Friday.

If you like NAPA filters you might want to take advantage of the sale, assuming that it's a promotion at all NAPA stores. If you like AC/Delco you might want to see about getting a couple of spares ... just in case. Regardless, please report on this thread anything you find out about future availability.

George

72ZR1 · 09-21-2011

I work at a GM dealer checked with parts.We can still get them.

Gunny · 09-21-2011

Quote:

Originally Posted by 72ZR1

I work at a GM dealer checked with parts.We can still get them.

Good news ... we lost our local GM dealer a couple years back with the GM shakeout

so I have to look for other sources for parts, etc.

George

ScottZ95ZR1 · 09-21-2011

Marc's past articles also spoke well of the FRAM TG3985 - but he found they were no longer marketed in the Chicago area.

There was a recent discussion regarding availability of the FRAM TG3985 from several sources in this thread: http://www.zr1.net/forum/showthread....ht=filter+fram

I also saw a recent email on the LISTSERVE from Hib that spoke poorly of the FRAM filter. I'm thinking he was referring to the PH3985 and HM3985 though, which are of lesser quality.

I hope that's the case anyway, as I have half-a-dozen of the TG on the shelf.

4-cam · 09-22-2011

Rock auto has em for $3.18 ea.

09-21-2011	#1
Gunny Join Date: May 2005 Location: Georgia Mountains Posts: 927	Oil Filter Info Starting a new thread as a follow up to some earlier info concerning oil filters. In this thread it was mentioned that Marc H. had updated his oil filter testing results and could no longer recommend the Bosch 3401 due to the anti-drain back valve leaking. You can read his update here. I've been using the Bosch for several years with no significant issues with the chain rattle issue until recently. The last 3 Bosch filters that I've purchased have been progressively worse with regards to chain rattle which makes me wonder if the filters are being manufactured differently, or by a different company. So, to the point ... I just changed oil/filter about 3 weeks ago. The chain rattle is as bad as I've ever heard it and is present when the engine has not been started for an hour or so ... this is my personal confirmation of Marc's findings. AC/Delco 970C ... tried to find it locally with no success. Talked to the parts guy at the local Advance Auto and it's no longer in their catalog ... he called AC/Delco headquarters and was told they had about 100 remaining. I don't know (since I wasn't on the phone) if that means they currently have only 100 or if they plan to make more, or what ... I'm just reporting my findings. Regardless, I asked him to order me some. NAPA 1324 ... our local store does not stock them but they are having a 1/2 price sale on Napa filters this week. I ordered several at $4.28 each and should have them by Friday. If you like NAPA filters you might want to take advantage of the sale, assuming that it's a promotion at all NAPA stores. If you like AC/Delco you might want to see about getting a couple of spares ... just in case. Regardless, please report on this thread anything you find out about future availability. George __________________ George Jones Founding Member #14 www.zrwon.com

09-21-2011	#2
72ZR1 Join Date: Jun 2007 Location: lasalle michigan Posts: 61	Re: Oil Filter Info I work at a GM dealer checked with parts.We can still get them.

09-21-2011	#4
ScottZ95ZR1 Join Date: Mar 2008 Location: Pendleton, IN Posts: 659	Re: Oil Filter Info Marc's past articles also spoke well of the FRAM TG3985 - but he found they were no longer marketed in the Chicago area. There was a recent discussion regarding availability of the FRAM TG3985 from several sources in this thread: http://www.zr1.net/forum/showthread....ht=filter+fram I also saw a recent email on the LISTSERVE from Hib that spoke poorly of the FRAM filter. I'm thinking he was referring to the PH3985 and HM3985 though, which are of lesser quality. I hope that's the case anyway, as I have half-a-dozen of the TG on the shelf.

09-22-2011	#5
4-cam Join Date: Feb 2010 Location: Arvada Colorado Posts: 194	Re: Oil Filter Info Rock auto has em for $3.18 ea. __________________ [I]4-cam[/I] [I]1991 ZR-1 Blk/Gry #31[/I] [I]SW Headers/Xpipe- Dynomax Muffs[/I] [I]Ported top end[/I] [I]Secondaries Removed[/I] Tune by Dominic