Best no BS motor oil/filter comparison?
in [Toyota]
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From: Brent P on 24 Nov 2008 18:07 On 2008-11-24, HLS <nospam(a)nospam.nix> wrote: > > "Brent P" <tetraethylleadREMOVETHIS(a)yahoo.com> wrote in message > >> Which is why I stick with OEM oil filters. Because at least the >> manufacturer tested and approved of them. > > OEM filters often come from the exact same filtermakers that are being > discussed here. It is still no guarantee of anything except that you have > a paper trail if you have a filter related incident. Of course they often do. However they will be built to the OEM's specs more often than not. Odds are the OEM filter is the only one that was tested on a particular engine or engine/vehicle combo. I responding to the requirement of test data. At least I know that Ford tested with the motorcraft filter.
From: Tegger on 24 Nov 2008 18:21 Steve <no(a)spam.thanks> wrote in news:56qdnYPdccwLvbbUnZ2dnUVZ_tCdnZ2d(a)texas.net: > Tegger wrote: > >> My personal and untested opinion is that most aftermarket oil filters >> are about the same quality as most aftermarket car parts, which is >> to say of poor and/or questionable quality. that's why I only ever >> buy OEM for our (Honda and Toyota) vehicles. > ^^^^^^^^^^^^^^^^^^ > > THAT explains it. Its a religious thing, not a fact-based thing. > > ;-) > > Naughty boy. Those just happen to be the two cars we own at the moment. -- Tegger
From: HLS on 24 Nov 2008 19:36 "Brent P" <tetraethylleadREMOVETHIS(a)yahoo.com> wrote in message > Of course they often do. However they will be built to the OEM's specs > more often than not. Odds are the OEM filter is the only one that was > tested on a particular engine or engine/vehicle combo. I responding to > the requirement of test data. At least I know that Ford tested with the > motorcraft filter. OEM specs are often not good enough to assure quality. Ford and GM probably do not make their filters but may issue minimum specs. MINIMUM. Buy what you want. But if you are going to argue quality, you need data. And no one yet has put any data on the board.
From: SMS on 24 Nov 2008 20:22 HLS wrote: > > "Brent P" <tetraethylleadREMOVETHIS(a)yahoo.com> wrote in message >> Which is why I stick with OEM oil filters. Because at least the >> manufacturer tested and approved of them. > > OEM filters often come from the exact same filtermakers that are being > discussed here. That's irrelevant. The OEMs tell their suppliers what to make, and how to make it. It's not simply the same product in a different color scheme or package. The question isn't just how well it filters. All of them probably filter acceptably well when new. It's a question of how well thing like the anti-drainback valves work. As the data shows, some work better than others. It's also a question of surface area of the filter material, since the more area the less restrictive the flow, and the more filtered matter it can hold. It is still no guarantee of anything except that you > have a paper trail if you have a filter related incident. Right, no guarantees of anything. Just a question of how long you want your engine to last, past problems with the cheaper filters, and the belief that a company making poorly constructed filters would be more likely to skimp in areas that are not possible to evaluate easily.
From: Brent P on 24 Nov 2008 20:39
On 2008-11-25, HLS <nospam(a)nospam.nix> wrote: > > "Brent P" <tetraethylleadREMOVETHIS(a)yahoo.com> wrote in message >> Of course they often do. However they will be built to the OEM's specs >> more often than not. Odds are the OEM filter is the only one that was >> tested on a particular engine or engine/vehicle combo. I responding to >> the requirement of test data. At least I know that Ford tested with the >> motorcraft filter. > > OEM specs are often not good enough to assure quality. > Ford and GM probably do not make their filters but may issue minimum > specs. MINIMUM. > > Buy what you want. But if you are going to argue quality, you need data. > And no one yet has put any data on the board. Why do I have to keep re-inserting the context? How do you judge if an aftermarket oil filter is *BETTER*? The ultimate way is *TESTING*. Generally, the only one that has been tested for any given application is the OEM filter. The 'minimum' specs aren't going to be filtering ability they are going to specifications of dimensions, filering media material, construction, and so on. They aren't likely to specified as filter performance but the actual design of the filter itself. There are very few things that one simply gives performace specs for and the size of the box and then has the vendor just do whatever they want for the inside. That's usually very very foolish. The exception would be commodity parts like resistors or capacitors or something like that, but a full assembly like an oil filter where the materials and internal mechanical design are important is highly unlikely. Involvement with the filter vendor? Sure thing. Maybe even encorporate the vendor's drawings, but 'black box' that does 'X'. I would be shocked if that were case. The manufacturers have too much riding through the warranty period to take that kind of risk. |