Purolator vs. Bosch Filters

[barlowc]

So you have the following...

1) Purolator Classic
2) Bosch Premium
3) Purolator PureONE
4) Bosch DistancePlus

Is that the order of progression?

Are #s 1 and 2 the same filter and #s 3 and 4 the same?

Or are #s 2 and 3 the same? (They both cost $6.99.)

In the searching/reading that I've done, I've run across mixed elusions.

 

[mongo161]

Who knows for sure? IMO....Only the folks at Purolator/Bosch Mann would be able to give that answer.

 

[kballowe]

I gotta ask this question. Of all the used oil analysis(s) that I've seen... it doesn't appear to make any difference which oil filter is being used.

I know I'm probably missing something so somebody please chime in here and enlighten me.

As a side note - I like the Purolator Classic or the Motorcraft which I think is the same as the Purolator Classic?

 

[Bluestream]

Originally Posted By: kballowe
I gotta ask this question. Of all the used oil analysis(s) that I've seen... it doesn't appear to make any difference which oil filter is being used.

I know I'm probably missing something so somebody please chime in here and enlighten me.

As a side note - I like the Purolator Classic or the Motorcraft which I think is the same as the Purolator Classic?



I agree with you. I may feel better to have a more expensive filter, but does it really matter if in 10 micron or 9 micron? Any particle small enough to go trough the filter will do no harm. I do think it is important to run a filter. I know Bob did a test on his Escort running it with no filter and his UOA was fine, but I would still use a filter

 

[jmsjags]

Originally Posted By: kballowe
As a side note - I like the Purolator Classic or the Motorcraft which I think is the same as the Purolator Classic?



same media but i think motorcraft has a silicone ADBV as opposed to nitrile and the bypass valve may be in a different spot

 

[ZeeOSix]

Originally Posted By: barlowc

1) Purolator Classic
2) Bosch Premium
3) Purolator PureONE
4) Bosch DistancePlus


From the info I've seen on this board:

1) is lower than 2) & 3)
2) and 3) are the same
4) is higher than all

 

[Chris142]

Originally Posted By: kballowe
Of all the used oil analysis(s) that I've seen... it doesn't appear to make any difference which oil filter is being used.

I agree 100%

 

[HTSS_TR]

Originally Posted By: Chris142
Originally Posted By: kballowe
Of all the used oil analysis(s) that I've seen... it doesn't appear to make any difference which oil filter is being used.
:
! I agree 100%

+2

I buy oil filter based on price. Pure 1 from AAP for $3 after 40% off is what I paid, I also bought some Bosch Premium for $2-3 a while ago. I would not pay more than $5 for a spin on filter for my S2000 and LS400, but I had to pay up to $8-10 for cartridge filter for my E430.

 

[Spockian1]

There is evidence for both extremes. On the one hand, VW Beatles apparently did OK with nothing but oil screens. On the other Ford (or was it Chrysler?) did some testing indicating that sub 9 micron filtration significantly reduced wear.

But I can't imagine using an inferior filter when you can get such excellent filtration and flow rate from the P1 for just $5.89 at K-Mart or $6.54 at Advance Auto.

 

[Bluestream]

Originally Posted By: Spockian1
There is evidence for both extremes. On the one hand, VW Beatles apparently did OK with nothing but oil screens. On the other Ford (or was it Chrysler?) did some testing indicating that sub 9 micron filtration significantly reduced wear.

But I can't imagine using an inferior filter when you can get such excellent filtration and flow rate from the P1 for just $5.89 at K-Mart or $6.54 at Advance Auto.


I would be very interested in seeing those tests. Also, you would agree, that as the filtration ability is increase the flow through the filter is decreased, which results in less oil flow.

 

[SteveSRT8]

The less flow argument is not important IMO.

Look at a bypass setup! No one complains of "low flow".

So what if a portion is bypassed as long as the filter is on the job.

 

[Sayjac]

Originally Posted By: ZeeOSix
Originally Posted By: barlowc

1) Purolator Classic
2) Bosch Premium
3) Purolator PureONE
4) Bosch DistancePlus

From the info I've seen on this board:

1) is lower than 2) & 3)
2) and 3) are the same
4) is higher than all

+1 Using river_rat's excellent analysis/dissection thread (2&3 being clones), and Purolator/Bosch's own ratings of these filter's, I'd agree. I'd add that BDP is heavier duty version of 2&3, with ~2x the holding capacity (thicker media) and thicker can/base plate.

That said, it seems right now that the P1 with reduced price (Amazon) and rebate, may be the best value. Though, someone on the promo board has shown a way to get 4 BDP's for ~$3.50 each using an AAP code and Bosch rebate. Not too shabby.

 

[K20FA5]

You can also throw in the US made Mann's in there too. They look very similar to the Purolator Classics and sometimes are a good deal.

I picked up 6 along with some other stuff from RockAuto. By the time everything was done, I paid just under $3 each shipped. I'm going to be running these in my Nissan for a while.

 

[ZeeOSix]

Originally Posted By: sayjac
Though, someone on the promo board has shown a way to get 4 BDP's for ~$3.50 each using an AAP code and Bosch rebate. Not too shabby.


No kiddin' ... that's a super deal IMO.

 

[bullwinkle]

Originally Posted By: ZeeOSix
Originally Posted By: sayjac
Though, someone on the promo board has shown a way to get 4 BDP's for ~$3.50 each using an AAP code and Bosch rebate. Not too shabby.


No kiddin' ... that's a super deal IMO.
That was me, I actually got 4 of them to try on my '06 Dodge Ram/Cummins-those BDPs are HEAVY-actually heavier than the Fleetguard Stratapore I'm running now. I'm just waiting to see if my friends @ rewardsbymail are going to bounce my rebate, which will make them roughly $4 each (40% off AAP online code, + $5 each rebate for each filter, maximum of 4). $13.95 X 4 = $55.80-40%/22.32=$33.48 + tax - $20 rebate. The biggest problem with the P1 is the WEAK outer housing-if I can dent it with my hands it's not strong enough for a 4X4 or even gravel road usage.

 

[Spockian1]

Originally Posted By: Bluestream
I would be very interested in seeing those tests.

There are a couple of threads here in which responses to queries to Purolator have been posted, which break out the results for P1 for various micron sizes. The numbers were extremely impressive.

And also, there is another thread here, where a BITOG member queried Purolator about flow for a particular application. Purolator actually set up and ran to test and emailed him the results which shows flow at various differential pressures, which he published here.

I don't have the links handy. And the search function here is not exactly a joy. But you should be able to locate them.

Quote:
Also, you would agree, that as the filtration ability is increase the flow through the filter is decreased,

No. The total surface area of the filter media figure in, as well. P1 is known to have a very large surface area relative to other filters for the same application.

 

[Bluestream]

Originally Posted By: Spockian1
Originally Posted By: Bluestream
I would be very interested in seeing those tests.

There are a couple of threads here in which responses to queries to Purolator have been posted, which break out the results for P1 for various micron sizes. The numbers were extremely impressive.

And also, there is another thread here, where a BITOG member queried Purolator about flow for a particular application. Purolator actually set up and ran to test and emailed him the results which shows flow at various differential pressures, which he published here.

I don't have the links handy. And the search function here is not exactly a joy. But you should be able to locate them.

Quote:
Also, you would agree, that as the filtration ability is increase the flow through the filter is decreased,

No. The total surface area of the filter media figure in, as well. P1 is known to have a very large surface area relative to other filters for the same application.


The total surface does have an effect on the flow rate, that goes without saying. My point was that it is not hard to make a filter media with less than 9 microns, and it would cost no more to make. You could make media with a 5 micron rating, but you would not get the flow, especially at -30 temps.

Local cab fleets uses the cheapest filter they can fine and get 500K+ out of their Crown Vics, so I don't think it makes much difference...

 

[123Saab]

Originally Posted By: bullwinkle
The biggest problem with the P1 is the WEAK outer housing-if I can dent it with my hands it's not strong enough for a 4X4 or even gravel road usage.


I understand your concern, However my XJ Jeep gets driven on gravel roads daily (and occasionally on an old logging road) and so far I haven't managed to bust a P1.

And on the XJ the filter is Horizontal, And very exposed to the road.

 

[rslifkin]

123Saab - On both your XJ and my ZJ, the filters aren't that exposed. Yours is up relatively high, and mine is fairly well protected by stuff around it, so they aren't likely to get hit by stuff. In a vehicle where the filter sits down low and exposed, it's more of a concern (as far as getting hit by rocks, etc).

 

[Spockian1]

Originally Posted By: Bluestream
The total surface does have an effect on the flow rate, that goes without saying. My point was that it is not hard to make a filter media with less than 9 microns, and it would cost no more to make. You could make media with a 5 micron rating, but you would not get the flow, especially at -30 temps.


Sure you can get the same flow. Just increase the surface area of the filter media in the can, as Purolator does in the P1.

The question of how much benefit the additional filtration yields regarding wear is a completely different question. But it's one to be resolved by scientific testing and not pointing to anecdotal claims about what this or that cab company does.

Bottom line, I can get excellent filtration and excelent flow, both supported by actual testing, for $5.69 at K-Mart. Whether additional filtration helps or not, I'm covered at a trivial cost.