Maintenance Schedule - OEM vs. Aftermarket - Infiniti Q50 Forum
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post #1 of 24 (permalink) Old 08-03-2019, 10:59 AM Thread Starter
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Default Maintenance Schedule - OEM vs. Aftermarket

I just purchased a 2014 Q50S Hybrid (wTech Pack.) last year, and it wanted to see how the Q50 owners here maintain there vehicles. Its time for me to replace my engine air filter and polyphenol cabin air filter, and using the discountinfinitiparts.com website it comes out to roughly $90-$95. Do you typically go with OEM parts or do you go with advance auto parts/auto zone with near half the price? Typically i like going with OEM, but not sure if I'm overpaying if there are identical quality filters.
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post #2 of 24 (permalink) Old 08-03-2019, 02:08 PM
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Me, OEM. Have never been disappointed with an OEM part for maintenance/wear items...filters, wipers, brake pads (I know, I know), fluids (not engine oil, however), etc.
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post #3 of 24 (permalink) Old 08-03-2019, 08:08 PM
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OEM air filters? Don't waste your money on them. Overpriced.
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post #4 of 24 (permalink) Old 08-03-2019, 10:22 PM
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I use OEM air filters and also buy them from discountinfinitiparts.
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post #5 of 24 (permalink) Old 08-04-2019, 10:55 AM
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Originally Posted by Avedis53 View Post
OEM air filters? Don't waste your money on them. Overpriced.
Based on my annual mileage I'm probably four years away from needing one. I'll start saving now.
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post #6 of 24 (permalink) Old 08-04-2019, 08:28 PM Thread Starter
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I went ahead and purchased from discountinifintiparts. I read the article in the link below and decided to stick with OEM. Thinking about it, I probably should not have worried about the cabin air filter being OEM.

https://nicoclub.com/archives/kn-vs-oem-filter.html
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post #7 of 24 (permalink) Old 08-05-2019, 08:26 AM
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Originally Posted by theanchorman View Post
I went ahead and purchased from discountinifintiparts. I read the article in the link below and decided to stick with OEM. Thinking about it, I probably should not have worried about the cabin air filter being OEM.

https://nicoclub.com/archives/kn-vs-oem-filter.html
Actually, if you have the grapeseed polyphenol cabin filter I'm not sure if is available in the aftermarket.

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post #8 of 24 (permalink) Old 08-05-2019, 12:04 PM
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Actually, if you have the grapeseed polyphenol cabin filter I'm not sure if is available in the aftermarket.
I'm not convinced that grapeseed polyphenol oil sprayed on the filter media provides any noticeable improvement over an activated carbon filter. In fact, Nissan uses activated carbon as part of their grapeseed polyphenol filter design. Nissan claims grapeseed polyphenol provides more hydroxy ion groups to bind with allergens than catechin-based filters. I suppose if one suffers from allergies then it may be a better filter from that standpoint. I use an activated carbon-based cabin air filter instead of a plain paper filter as they remove carbon monoxide and nitrogen oxides from the outside air.

I'm of the opinion that it's more important to change filters at the prescribed intervals to keep filtration efficiency at a high level than to use what I consider to be somewhat of a marketing gimmick that costs over twice as much as an activated carbon filter. Regardless of the filter media, they all become ineffective as particulate and gases deposit on the media and they are not changed on a routine basis.

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post #9 of 24 (permalink) Old 08-05-2019, 12:36 PM
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Originally Posted by Avedis53 View Post
OEM air filters? Don't waste your money on them. Overpriced.

What if you can buy them at employee cost pricing?

I was sent for Parts training at MB corporate, and the whole course was built on the Aftermarket Vs OEM Parts. They showed us an aftermarket air filter, vs the OEM one, and why the OEM one demands the price it does. For MB example, Mann filters makes the OEM and the aftermarket one in the same facility and perhaps even the same line. Side by side, they look identical. But in terms of build specs, thats where it differs. OEM might use better quality paper filtering, and more reinforced end caps.

End of day, what matters more, is the frequency in which your changing these parts. There's some things, I only do OEM, and other things I prefer aftermarket. Do what your budget allows

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post #10 of 24 (permalink) Old 08-05-2019, 01:05 PM
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What if you can buy them at employee cost pricing?

I was sent for Parts training at MB corporate, and the whole course was built on the Aftermarket Vs OEM Parts. They showed us an aftermarket air filter, vs the OEM one, and why the OEM one demands the price it does. For MB example, Mann filters makes the OEM and the aftermarket one in the same facility and perhaps even the same line. Side by side, they look identical. But in terms of build specs, thats where it differs. OEM might use better quality paper filtering, and more reinforced end caps.

End of day, what matters more, is the frequency in which your changing these parts. There's some things, I only do OEM, and other things I prefer aftermarket. Do what your budget allows
Bottom line: buy whatever filter makes you feel good and change them at the proper intervals.

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