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Originally Posted By: Bottom_Feeder
Originally Posted By: Gary Allan
The XG is a good filter. The PureOne is a good filter ..pick your filter.
I'll say that the XG is overbuilt for the task. You do get what you pay for over the cost of a PureOne in terms of construction. It's construction is up there with the EaO and what most filter manufacturers produce for Euro's that spec relatively high bypass valve settings.
Either will be fine for up to 15k if 15k is done in a timely manner (like one year). The XG may not have the same holding capacity as the PureOne, but probably doesn't need it as long as it doesn't filter to the same level. It's "curve" will track about the same (probably).
Gary, are you talking about the Purolator PureONE or the Mobil M1? PureONEs are not marketed (or designed, from what I can tell) to be a long-OCI filter. Where are you seeing anything that suggests that a PureONE has a large holding capacity? It certainly isn't anything close to the Fram's advertised 10,000 mile change interval. The Purolator-made Bosch DistancePlus is up there, but not the PureONE.
Okay ..let me see if I can say this in an understandable manner (I'm not always good at this).
A filter lives over a "curve". Any filter can make somewhere in the 12k+ range if the hollow miles are abundant enough. They're mostly "clean" hollow miles. Essentially (for the most part) it comes down to the number of cold starts that are in fuel enrichment. This is what produces the majority of your filters "dirt" that it accumulates.
Now given the radical difference in OCI's that someone can see with, for example, a GM OLM ..with merely any and all filters that "meet or exceed OEM spec's" ..one can figure how the filter life and oil life can be radically different since they fatigue along different curves.
Let's go before the OLM. GM (and others) had an "every other OCI" filter spec if mileage was used in their 7500/6month maintenance intervals. Here the oil would "on average" in the fudge factoring required to fit the most users ..require changing ..but the filter would not. They knew that most of those miles ..for someone driving 15k/year ..were warmed up miles devoid of fuel enrichment states that load the filter.
Hence ..I have to conclude that EVERY filter that meets or exceeds OEM spec's will endure most daily driving scenarios over a (near+/-) 15k interval IF (BIG IF) the 15k is done in a daily driving manner with some time termination of around ONE YEAR.
Further, if you get away from the marketing hype about flow and efficiency ..you are looking at a given holding capacity over a given efficiency level. This "curve" that's formed MUST "meet or exceed" OEM spec's. Therefore, if a given filter has a higher efficiency, it also has to have a higher holding capacity to pass the endurance spec's put forth by the OEM.
Take the EaO, it's marketed and designed to be a 25k/ONE YEAR filter. PureOne's/M1/RP are 15k/ONE YEAR filters. Amsoil failed to cover all services and engines with a couple of their EaO's and the alternatives that they offer (for those models) are strictly footnoted for limitations.
Are you getting my drift here? Fine filtering is mostly marketing. All of them have to pass the same durability tests ..which is very long my our typical BITOG standard.
I hope I made sense here.
Originally Posted By: Gary Allan
The XG is a good filter. The PureOne is a good filter ..pick your filter.
I'll say that the XG is overbuilt for the task. You do get what you pay for over the cost of a PureOne in terms of construction. It's construction is up there with the EaO and what most filter manufacturers produce for Euro's that spec relatively high bypass valve settings.
Either will be fine for up to 15k if 15k is done in a timely manner (like one year). The XG may not have the same holding capacity as the PureOne, but probably doesn't need it as long as it doesn't filter to the same level. It's "curve" will track about the same (probably).
Gary, are you talking about the Purolator PureONE or the Mobil M1? PureONEs are not marketed (or designed, from what I can tell) to be a long-OCI filter. Where are you seeing anything that suggests that a PureONE has a large holding capacity? It certainly isn't anything close to the Fram's advertised 10,000 mile change interval. The Purolator-made Bosch DistancePlus is up there, but not the PureONE.
Okay ..let me see if I can say this in an understandable manner (I'm not always good at this).
A filter lives over a "curve". Any filter can make somewhere in the 12k+ range if the hollow miles are abundant enough. They're mostly "clean" hollow miles. Essentially (for the most part) it comes down to the number of cold starts that are in fuel enrichment. This is what produces the majority of your filters "dirt" that it accumulates.
Now given the radical difference in OCI's that someone can see with, for example, a GM OLM ..with merely any and all filters that "meet or exceed OEM spec's" ..one can figure how the filter life and oil life can be radically different since they fatigue along different curves.
Let's go before the OLM. GM (and others) had an "every other OCI" filter spec if mileage was used in their 7500/6month maintenance intervals. Here the oil would "on average" in the fudge factoring required to fit the most users ..require changing ..but the filter would not. They knew that most of those miles ..for someone driving 15k/year ..were warmed up miles devoid of fuel enrichment states that load the filter.
Hence ..I have to conclude that EVERY filter that meets or exceeds OEM spec's will endure most daily driving scenarios over a (near+/-) 15k interval IF (BIG IF) the 15k is done in a daily driving manner with some time termination of around ONE YEAR.
Further, if you get away from the marketing hype about flow and efficiency ..you are looking at a given holding capacity over a given efficiency level. This "curve" that's formed MUST "meet or exceed" OEM spec's. Therefore, if a given filter has a higher efficiency, it also has to have a higher holding capacity to pass the endurance spec's put forth by the OEM.
Take the EaO, it's marketed and designed to be a 25k/ONE YEAR filter. PureOne's/M1/RP are 15k/ONE YEAR filters. Amsoil failed to cover all services and engines with a couple of their EaO's and the alternatives that they offer (for those models) are strictly footnoted for limitations.
Are you getting my drift here? Fine filtering is mostly marketing. All of them have to pass the same durability tests ..which is very long my our typical BITOG standard.
I hope I made sense here.
