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Oil Filters, whose is best, and Why?

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Comments

  • spokanespokane Posts: 514
    Thanks, Gasguzz, the Fleetguard data does show some of the pressure-relief settings. In a few cases, I noticed that two filters were listed for one engine application. When listed this way, you would surely be OK with the larger filter. However, if choosing by capacity and thread/gasket fit only; don't you agree it would be possible to select, for example, a filter that has no BPV when your vehicle needs one?
  • armtdmarmtdm Posts: 2,057
    there is a filter made that does not have a anti drian back valve or by pass valve. Een the cheapest do, may not work as well but all do contrary to waht dealers tell you.

    What filters do not have one if you know of any. Since filters usually can service many different engines they need to be made with both valves.
  • kyleknickskyleknicks Posts: 433
    what's the difference between the two?? i went to advance auto parts and they had both cut open and i couldn't really tell the difference between the two. take into account that i'm not a filter expert by any means.... so i'm looking for other people's opinions.

    and does $6 sound like about right for a PureOne filter? thanks, Kyle
  • adc100adc100 Posts: 1,521
    Check out this link- it has been posted many times. Look under "purolator". The differences seem to be the number of pleatrs and the fact that the Pure One has a synthetic filter media vs paper for the conventional unit.


    http://members.nbci.com/minimopar/oilfilterstudy.html

  • john319john319 Posts: 37
    Correction, the pure one does not have a synthetic filter media. That site said it HAS it but in reality it does not.
  • adc100adc100 Posts: 1,521
    Yea, I'm sure you are correct. I wondered about that too. Looks like paper to me.
  • brorjacebrorjace Posts: 588
    Oh, and before I forget, the Castrol Max Pro filters are (I'm 99% certain) made by the Gard corporation who also make the WIX filters.

    --- Bror Jace
  • spokanespokane Posts: 514
    I believe most filters do have by-pass valves, however one exception is the very popular GM 3.8L V6. The correct filter for this engine has no by-pass valve because the engine has a built-in by-pass valve which connects the oil inlet and outlet passages. Examples of filters for this application include Fram PH3387 and PureOne PL10111. Accordingly, it would be dangerous to select this filter for use on an engine which had no built-in by-pass valve.

    I agree that all automotive oil filters do seem to have anti-drainback valves. As indicated by several people, some designs are much more effective than others.
  • mdecampsmdecamps Posts: 115
    Let's not forget these filters. No one has mentioned them yet, but they use synthetic media and have much better single-pass efficiencies than Mobil 1 or Pure 1 filters. Check out the AC Delco website. These are some impressive filters! 98% single-pass efficiency at 8-10 microns.
  • kyleknickskyleknicks Posts: 433
    well, if the pure one filters doesn't have synethic media, i really dont know what the difference between the pure one and the regular purator premium filter. if the only diff is the number of pleats.... well, the regular one cost $2.69 vs $5.99 for the pure one. am i missing something??
  • mrdetailermrdetailer Posts: 1,118
    Therefore allowing more filtering.
  • wtd44wtd44 Posts: 1,211
    I really can't justify spending the extra money for the pricey filter, when the regular one does everything the vehicle needs. Detergent oil successfully carries a lot of contaminants that are circulating in the engine. The bigger and therefore more harmful particles are captured by the filter, as you would desire. The tiny particles are unlikely to hurt the engine until the oil becomes "saturated" and can not suspend and circulate any more of them. You must change your oil and filter before that point is reached. If you fail at this, the bypass filter does its job. Go back to where I used the word "justify." Sometimes I just do things that I cannot justify. The other day I bought one of those AC Delco filters for my Pathfinder. It better be good! I paid $6.00 for it.
  • adc100adc100 Posts: 1,521
    Paying a few dollars more per filter only amounts to 10-15 bucks a year. Hardly a lot of money compared to the cost of a vehicle and also to the amount of gas money on an annual basis. Besides GM did a study and found compared to a 40 micron filter wear was reduced by 50% with a 30 micron and 70% with a 15 micron filter. Thats a lot of wear savings for a relatively small price.
  • 0patience0patience Oregon CoastPosts: 1,712
    I know you folks would like to beat this subject to death, but from my stand point, why?
    I see hundreds of oil sample analysis a year and we have machines that are in the $100-200K range and see extensive oil analysis.
    We run Fleetguard, Wix and NAPA gold filters. (Wix and NAPA are the same filter).
    You will find no FRAM or Purolator on these machines as the manufacturer has recommended we not use them.
    We aren't talking about only a few thousand dollars if these engines need to be replaced, It can get rather expensive, so everything is tracked to make sure there isn't a problem.
    I'm not saying there is anything wrong with any of the brands of filters, as most of them meet the minimum specifications of the manufacturers, but unless you are working your vehicle in extreme conditions, you ain't gaining that much.
  • scamp11scamp11 Posts: 4
    but how do you change oil filter without draining oil? Or do you drain and refill?
  • brorjacebrorjace Posts: 588
    I don't have a problem using a $5-6 filter as opposed to a $2-3 one.

    Why? Because I only go through (at most) 3 filters per car per year. So, if I save $2 per filter, that amounts to only a saving of $6 per year. That's insignificant when you look at the total cost of keeping a car on the road for a year.

    Plus, if I'm gonna leave an oil filter on my car for 5-6 months, I want to be sure it's well constructed ... and doesn't use cardboard as a structural component.

    --- Bror Jace
  • adc100adc100 Posts: 1,521
    removing the filter doesn't drain the oil pan sump. Only a little will drain out from the top of the filter to the main oil gallery, but thats about it.
  • rcarbonircarboni Posts: 290
    Very good points. Filters with poor construction have been known to fail as the previously posted study has pointed out. Also, some filters have a higher potential to leak at the anti-drainback valve as was also stated. These issues seem to be important no matter when the oil and filter are changed. The issue of filtration may have more importance for the longer drain interval.
  • wtd44wtd44 Posts: 1,211
    I think it's a good idea to carry a list of the filters that are acceptable to you for each of your vehicles. This makes it easy to grab them up when you see sales going on. Wouldn't you agree that it is gratifying to put a bargain on your garage shelf, awaiting the next scheduled change? I do not doggedly stick to a brand-- I buy any of a selected group, and do so by price.
  • scamp11scamp11 Posts: 4
    I haven't heard any mention of them. They run about $5 at Autozone.
  • csandstecsandste Posts: 1,866
    The German (not the MoPar) oil filter study reports that Bosch filters for the most part are Champion Labs.


    http://www.frankhunt.com/FRANK/corvette/articles/oilfilterstudy/oilfilterstudy-german.html#72150


    If this is the case it's probably like any other Champion Labs filter (not great, but a lot better than Fram). i.e. Lee, Super Tech (Wal-Mart), Champ, STP, etc.


    They also state that some German OEM filters may be mixed in.

  • csandstecsandste Posts: 1,866
    My long web citation keeps me from editing the above post. I was going to add that you should be able to pick up a variety of Champion Labs filters for $2-$3. I do notice that the above mentioned study gives Bosch more filtration area than the other Champion Labs filter (Deutsch), so maybe it is worth a bit more.
  • wtd44wtd44 Posts: 1,211
    Apparently the Champion Labs outfit is prolific. From what I have read, they make a very good filter. Autozone used to feature the Champion made Deutsch line. They are switching for no reason known to me, over to the same filters with STP painted on them. They are all good, I must assume. If you want a premium house filter when visiting Autozone, they offer the Bosch line.
  • csandstecsandste Posts: 1,866
    because Wal-Mart stopped carrying STP filters and started carrying their own house brand (Supertech). Maybe there was a warehouse full of STP branded filters sitting around some place.

    Come to think of it, before Wal-Mart sold STP filters they sold Lee filters.

    All of these filters are made by Champion Labs and all are about the same except for Bosch which seems to have more filtering material.

    All are much better than a corresponding Fram filter, although I have to beg Wal-Mart to put their filter on rather than a (crap) Fram if they do an oil change.
  • adc100adc100 Posts: 1,521
    looks like a good quality. I believe someone a while back said it was made by Champion???

    BTW does anyone have any experience with using a larger than stock filter on Nissan products-The Quest V-6 and Sentra for sure use the mini-mini filter.

    Thanks
  • armtdmarmtdm Posts: 2,057
    On my previous two Maximas (that also had the thimble sized filter) I went with a much larger one and just barely had enough room to get it on and off but it worked fine.
  • adc100adc100 Posts: 1,521
    application that it was used for???
  • wtd44wtd44 Posts: 1,211
    You might look at the Bosch filter for the Pathfinder. It is about twice the length of the Walmart cannister. Both have round section gaskets, as I recall. These both are recommended for Nissan V6 3.3 liter engines. Bosch filters are sold by Autozone.
  • adc100adc100 Posts: 1,521
    I'll do that.
  • Carquest oil filters are made by WIX. They have two lines: the Blue (name brand) and the Red (OEM-type) filters. The Blue sells for about $5.50 and the Red one sells for about half that. Anybody know about these two?

    Also, has anyone seen a cross section of the popular filters, i.e. WIX, Fram, Purolator, STP and GM? There has to be a display of the internals of these filters somewhere.
This discussion has been closed.