I have been using Pur Prem Plus and Baldwins. I have been thinking about trying Pure Ones. Grease's study and a lot of what I have read on this post seem to indicate that they filter very well. My only concern is that they may be oo restrictive. I live in Ariona so the lowest cold start temp for me would be about 30 degrees on the coldest winter morning. I have been using Delo 15W-40 in my 350 equipped Suburban but just bought some 5W-40 Synthetic Rotella. Any thoughts? Should I use a lighter oil than this with a Pure One?
Who is using Pure One? Your thoughts?
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My daughter lives in Phoenix and I tell her to use a good air filter due to the dry desert air and coinsidently, she uses Puro Prem Plus oil filter. PureOne would be fine and flow very well in AZ and would be a fine choice. Although, I would be just as concerned with air filtration in your neck of the woods....I mean desert!
I use Pure One on my Accord because of its reputation as an excellent filter. But I really have no reasonable way of knowing if it's working better for me than a $1.99 Supertech, though. I'm using it because I do my own work, and if there's a warranty issue, Honda will not be able to say I used a poor filter. Maybe dumb, but I'm not taking any chances.
Your filter choice could be dependent on OCI also...
PureOnes have a much higher capacity than most, so would be very good if you did over 5000mi each OCI...
Since you're running synthetic, I'm guessing you probably do a long OCI...
For all the people who do 3k OCI, a Supertech or Puro PP filter is all they need.
PureOnes have a much higher capacity than most, so would be very good if you did over 5000mi each OCI...
Since you're running synthetic, I'm guessing you probably do a long OCI...
For all the people who do 3k OCI, a Supertech or Puro PP filter is all they need.
I like both regular Purolators and Pure Ones also.
I use Pureone on our 99 Civic.
And, if you're throwing it away after a lousy 3-5K OCI, you're wasting your money. These go for two OCI, especially in an oversize. I ran one for 10K across two Pennzoil Dino OCI, and the thing wasn't close to used up upon cut-open. My car is pretty new, so no debris, but the media was like new, and from cold filter but warm engine startup, IMMEDIATELY grew hot, indicating the filter was flowing just fine.
You folks doing a 3K OCI on a PureOne 14459 or 24458 just drain it out and send it along to me, will ya?
Oh, and the, "PureOne is restricitve" chraap is just that.
Trust me
You folks doing a 3K OCI on a PureOne 14459 or 24458 just drain it out and send it along to me, will ya?
Oh, and the, "PureOne is restricitve" chraap is just that.
Trust me
Bob (is the oil guy) makes a pretty good case and is a firm believer that oil filter choices should be driven by flow rather than filtration efficiency, as high efficiency filters like the Pure One are overkill and may restrict flow more than desirable under certain conditions.
Look for posts by Gary Allen where he hooked up differential pressure gauges across a well used Purolator Pure One oil filter. His evidence strongly suggests that at anything above freezing temps, they flow all you could possibly need, even when well used.
Plus the new Amsoil EaO filters finer and flows better than any other filter currently available.. And no, I am NOT an Amsoil dealer...
It would seem the EaO to be *the* current best performing oil filter by a wide margin.
George Morrison, STLE CLS
It would seem the EaO to be *the* current best performing oil filter by a wide margin.
George Morrison, STLE CLS
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As much as I really applauded the experiment, I had cause to find flaw with Bob's procedure after much personal research and pondering on the topic (and help from some of the resident engineers). The process involved applying 40 psi upstream of the filter and then measuring the pressure drop across it. Statically, this would appear to give you a clear picture of "relative resistance". The problem is, there was no bona fide way to determine if each filter was getting the same flow. If, however, he had applied some standard pressure downstream ..let's say 30 lb and then read the upstream pressure, you would be assured that, assuming that the fluid was at the same temp, the flow to the "standard resistance of the engine" would be the same. 30 psi into a fixed restriction should be at a given flow, right? Then you would probably get a more realistic impression of what really goes on there. You would be able to determine if the pump was in relief and if your bypass threshold had been reached.
So, ..and again, as much as I applaud the experiment ..and will grant great tribute to how, with my critique of it, it was instrumental in forming the basis of my conclusions, I found a few holes in it.
Just keep three things in mind:
5 gpm is 5 gpm regardless of if it's through a 25' diameter pipe ..or a drinking straw.
Oil flow is, in most practical terms, irresistible as long as the oil pump is not in relief.
The engine is the biggest resistance to flow ..FAR OUT PACING the filter in relative resistance.
Those three givens will allow you to view the flow vs. filtration issue in a different way.
As always, thanks for the clarification and insight Gary! I have been debating the "flow vs. filtration" issue back and forth in my mind for a long time now, with no permanent resolution. I had decided to go the Pure One route for 6 month/12,000 mile OCI's and then backed away after the flow issue reared it's ugly head yet again on this board, reigniting my fears. I think I'll finally settle on PureOne as my filter of choice across the board once and for all. Thanks again!
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MADMIKE: If you've got a real pressure gauge and you see any variation in it between cold start and hot idle ..then you come off of relief. The filter will fall into a subordinate proportional resistance to the engine ...very ..very slight. Like (maybe) 2 PSID (oil pump not in relief) down to .2" of water column.
Now this assumes that we're not talking an engine with 225k of hard miles that is known for wearing oil pump gears and whatnot. We're speaking/discussing in a vacuum here ..a conceptual sense. As in all things, YMMV. Just a disclaimer to CYA for the obscure, but always there, exceptional circumstance
. For example: Terry had a customer who has lingering HLA noise at startup until the oil was thinned. He had him switch filters ..and it went away. This pump was obviously not pushing full flow and may have had a weakened relief mechanism ..or whatever
So, qualify everything that I say with a "normally" in front of it
There are also some pump designs that appear to be exempt from this. The newer Titan V8 appears to have a variable volume pump. This is one such exceptional situation.
Now this assumes that we're not talking an engine with 225k of hard miles that is known for wearing oil pump gears and whatnot. We're speaking/discussing in a vacuum here ..a conceptual sense. As in all things, YMMV. Just a disclaimer to CYA for the obscure, but always there, exceptional circumstance
So, qualify everything that I say with a "normally" in front of it
There are also some pump designs that appear to be exempt from this. The newer Titan V8 appears to have a variable volume pump. This is one such exceptional situation.
Thanks for all of the good info. Based on everyone's feedback I felt comfortable giving the Pure One a try. In fact, I bought 4 while I was at my local Pep Boys. They are resting safely on my garage shelf, minus one that I put on my 72' Burb.
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