I would follow your owner's manual. My Metro says to change the filter each time for "severe" service and every other time for "normal" service. Seems reasonable.
When should an oil filter be changed?
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I would and do change it with every OC. That way I don't run the risk of contaminating the fresh oil with whatever amount of dirty oil is in the filter still.
I agree with Vilan. Change a regular filter according to the owners manual. If you are using an extended life filter, then follow the instructions according to the filter manufacturer. Amsoil says you can use any filter with its XL7500 mile oil for 7500 miles or longer if the Owners Manual says so. But for their extended oil change PAO oils, follow your owners manual or use the Amsoil EaO oil filter for up to 15,000 miles severe driving/25,000 miles normal, or whenever you change the oil or once a year whichever comes first.
Hope this helps.
Hope this helps.
Honda recommends changing the filter every other oil change, but they didn't know about the Eao filter when they made that recommendation.
Do whatever makes you feel warm and fuzzy. There is no consensus an anything on this board, we all just agree to disagree.
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How long does Wix run their filters in testing Pete? Under average operating conditions, how long is a Wix filter good for before it's loaded? Basically I'm curious to know what the engineering dept. has to say about oil filter durability.
We don't run them the way you might think. We pulse the flow and pressure to determine the fail point of the filter. By pulse I mean that we start off at X gpm at X pressure (normal oil pressure in the application) and then increase those by adding more flow and pressure It's all done with valves. They are pulsed up to 1 million cycles. The test filters are generally the 10th and last filters made and an X# of random samples during the production run.
This pulse testing is more to the real world than just pumping X gpm at X pressure in a continious flow. Think of a square sinewave with the low (negatiive) valley being the minimum pressure and flow.
We also do seperate tests for dirt capacity, efficiency, flow at pressure etc.
No filters leave the warehouse to you until all the samples are tested.
Now you're even more confused aren't you?
This pulse testing is more to the real world than just pumping X gpm at X pressure in a continious flow. Think of a square sinewave with the low (negatiive) valley being the minimum pressure and flow.
We also do seperate tests for dirt capacity, efficiency, flow at pressure etc.
No filters leave the warehouse to you until all the samples are tested.
Now you're even more confused aren't you?
yeah, i tried telling my old lady that so i could skip the filter change on her civic
Pete c.,
I am glad to have this opportunity to talk to you. Do you know if Wix has any plans to produce a nanofiber air or oil filter?
I am glad to have this opportunity to talk to you. Do you know if Wix has any plans to produce a nanofiber air or oil filter?
Thanks Pete--I was afraid it would be over my head. I think Wix makes an excellent filter, very good construction quality with a nice balance of flow and filtration for those of us who listen to Bob's on the importance of flow over filtration. I like Wix and Purolator Premium Plus the best for this reason--both very well made with balanced performance at a relatively low price.
Thankyou for your reply Pete C., You wrote about what I thought you would. Do you make air or oil filters? I have a 1993 Civic and I would dearly love to have a Eaa type filter for it. I use the Wix 46026 presently.
The Plant I work in makes heavy duty oil, air and fuel filters, Light duty (automotive) oil and fuel cartridges, spin on light duty oil and fuel filters, and spin on and cartridge hydraulic filters.
You'll have to bug the Amsoil reps here about the product offerings or lack of in this case. We just make what they order.
(You're welcome Pabs)
You'll have to bug the Amsoil reps here about the product offerings or lack of in this case. We just make what they order.
Bug them I do Pete, too bad Amsoil is such a small company, can you imagine Mobil offering such a paultry spattering of nanofiber filters? I think not!
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I always remove the old filter - empty the contents - then reinstall.
Never had a leak on the 2nd installment.
PeteC and Harry, I run a Wix in my Subarus, 7500 mile intervals, filter change every OTHER oil change, UOA's are stellar on each OCI. It's probably not exactly what Wix wants to hear, because they'd love to sell more filters, but, these engines just don't need a new filter every time, even at 7500 mile intervals. Oh, yes, I've cut them open, no noticeable junk on them, and I do have a computer hard-drive magnet stuck on the outside of them...superstitious or smart? I'm not sure!
Titan,
A powerful magnet is a great idea, you remove some of the burden from the oil filter.I used to change the filter every oil change. That is just not necessary with the Eao filter. As far as contaminating the new oil, the "old" oil is just not that dirty, besides, you could always empty the filter and then reinstall.
A powerful magnet is a great idea, you remove some of the burden from the oil filter.I used to change the filter every oil change. That is just not necessary with the Eao filter. As far as contaminating the new oil, the "old" oil is just not that dirty, besides, you could always empty the filter and then reinstall.
Removing the old filter and reinstalling it is not such a swell idea, there is a chance that you might crack the old gasket and it will leak. Sometimes the old gasket might "spalt" Think of a golfers divit, that stays on the mounting base)when removing it and provide a leak path if tou don't install it to the exact original location. My suggestion would be that if you're going to use a filter for 2+ oil changes, leave it on the filter mount. the small amount of oil that is in the can won't hurt a thing since it has to pass through the media before it gets back to the engine.
The small filters are another reason it makes sense to me to leave them on for two changes...there's not much "old" oil left in them! New engines that are well cared for just don't have a bunch of junk to collect to clog them up. My Insolubles are very, very low even when running them 15000 miles before changing. Good old Wix 51365 for two runs works fine for me. (I think that's the right number...it's also the auto transmission filter number!)
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