Quote:
Originally Posted by Dallara  ~
... From simple inspection looking through the oil filter openings I would be willing to bet the Mobil 1 M1-113 oil filters and the AC Delco UPF48R filters are made by the same outfit. They appear literally identical on the inside, whereas the standard PF48 looks considerably different. The standard PF48 is also substantially lighter than the M1-113 or the UPF48R, whereas both those weigh exactly the same...
~ |
Both oil filters are made by Champion Laboratories. The best reading I have come across as to oil filters is at:
http://minimopar.knizefamily.net/oil.../opinions.html
A couple of quotes from the site in regards to Mobil1, AC Delco, and Amsoil filters:
Mobil 1
This filter is made by Champion Labs using what I call their "performance" design instead of the "Ecore". It uses a synthetic fiber element that can filter out very small particles and has a high holding capacity. It is rated by the manufacturer at just under the Purolator Pure One as far as filtering capability, but is still very much above conventional paper filters. It also has a very strong construction to withstand high pressure spikes during start-up. Given the choice between the Purolator Pure One and the Mobil 1 filters, I would choose the Mobil 1 because of the restriction concerns of the Pure One. However, as with all Mobil 1 products, expect to pay 2 - 3 times as much for this filter. I have seen this filter sold at Auto Zone and K-mart and used them a few times, but I feel they are not worth the money in the end.
Though I have never had problems, I had received feedback from a few people back in 1999/2000 that these filters may leak at the base. It seems that the seal between the backplate and can may burst under high pressure (at startup). These were on Ford engine applications.
AC Delco Duraguard
AC Delco no longer seems to manufacture oil filters. They are now made by Champion Labs using their new "Ecore" design.
AMSOIL
The SuperDuty line of filters is no longer being sold by AMSOIL. They now have their "Absolute Efficiency" line of filters that are intended for long duration use along with their premium synthetic oils. The SuperDuty filters had to be changed out at least once between oil changes. From the pictures, they appear to be manufactured by Donaldson. Donaldson manufactures filters mainly for truck applications intended for long duration use. They also manufactured the Hard Driver filter, which I used with great success for several years.
(forgot to add the info in regards to purolator)
Purolator Premium Plus
The Purolator is a solid design. It seems to have one of the tougher paper filter elements of the low-end filters and the bypass valve is built right into the cartridge. There are no internal sealing problems with this filter at all. There is an assembly string that is wrapped around the filter element, probably to hold it in place while the glue cures in the end caps. In the ProLine (one of the Purolator clones), the string was wrapped too tightly and had damaged the filter element. All the other Purolator-made filters (8 in all) had no trouble, and even the damaged one would probably have been fine. I usually go with these in a pinch or when recommending the cheapest oil filter possible.
Purolator Pure One
This is an interesting filter design made by Purolator. Most of the construction of the Pure One is the same as the Purolator Premium Plus. The big difference is the filter element itself. It has a dense paper/fiber filter element that can filter very small particles. The result of this is cleaner oil exiting the element, but more oil restriction. Purolator addressed this by adding more filter material (more and deeper pleats). After seeing one of these filters cut open, I am apprehensive about this filter. It seems to have so many pleats that it is almost a solid chunk of filter element. It seems like it would end up restricting the flow, more than anything. Purolator has plenty of data on the filtration abilities of this filter and I don't doubt it, but they have no flow data. Even so, I don't see any major problems with this filter. It also sports a silicone anti-drainback valve and a PTFE treated nitrile rubber gasket.