Oil Filters

[Hammer]

For those that didn't read the oil change notes I posted here's some great news.

Autozone has the Bosch 3401 filters for $5.99. They were in stock too, I bought two and will get more. AND they are black.

[Z Factor]

Sounds like a decent price though I will be sticking with Mobil 1 filters even though they run $9-$10

[Hammer]

Originally Posted by Z Factor

Sounds like a decent price though I will be sticking with Mobil 1 filters even though they run $9-$10

Jim, if you read the current edition of the Heart of the Beast, you will see why I chose the Bosch over the Mobil 1. It wasn't money.

[Corvette95]

Yep, the latest issue was great, I use the Mobil 1 and get the valve rattle, I though Mobil 1 was the best , I will be swapping filter this weekend.

[brodykelly]

i got the last 2 3401's at my local autozone for 5.99 also they were covered in dust, and they are indeed black

[tomtom72]

I have no mechanical ability other than being a "back yard" type with no formal trainning so I would just like to pass this along for the fyi file.

I was using the M1-207 filter, the grey ones, and I am using the black ones now, and I'm not real happy with them. It seems to me that the black ones give me a slightly longer period of chain rattle upon start up than the grey ones did.

I'm just wondering if they changed something when they changed colors. That don't make sense to me, or proly anyone else for that matter. Like I said, I'm not a mechanic but we all know the noises our cars make....by heart. Any new sounds get our attention. With the old grey ones it seemed once they primed up from sitting a week I was good to go for all the starts that day....now it just ain't so any longer and the rattle lasts a bit longer????

I'm gonna try a Bosch 3401 today & see if my symptoms persist. If they do I guess my tensioners are out to lunch or is it the right side chain guide???

Thanks

Tom

[Tom]

Maybe yoy just got a filter where the check valve does not seal as tightly and the oil drains out of the filter a little quicker. I also use the Mobil 1's and currently have a black one and don't notice any difference.

[tomtom72]

You are proly right Tom! I think I got two bad ones in a row....makes sense to me as I bought them at the same A/Z store.

I'll just add this as another "shot in the dark". Both of the black M1's did the same symptoms: more & longer rattle time on cold start up, which to me is 5 - 7 days of sitting. A small amount of rattle on hot start ups, again to me is any start the same day after cold start up. And the bonus symptom, my O/P gauge was taking it's sweet time to show pressure on any start up but markedly on cold start....I was starting to think the sender was checking out.

Last week I swapped in a Bosch 3401 and this past Saturday's run the rattle on cold start was back to 3-5 seconds & not too loud and silence on hot starts and my "maybe going bad" sensor suddendly came back from the DNR list. I'm stumped because the grey M1's didn't behave like the new black M1's.



Tom

[evl_twn]

Any specifications on the actual quality of filtration between the two filters? I'd hate to swap out the M1 for something else, just to have worse filtration. If your oil pressure rises faster, there's less restriction through the filter so maybe it doesn't perform as well? I just want the best filter for my Z, so I want good filtration AND less drainback. Thoughts?

[Aurora40]

Originally Posted by evl_twn

Thoughts?

My two cents would be that the period of running where there's no oil circulating due to an empty filter having to fill up would be worse for the motor than any minor difference in filtering capability. But that's just a guess...