i never understood the basis of changing oil based on storage time. especially synthetic oil.
THE ULTIMATE NSX Oil Filter Page and Analysis
- Thread starter stuntman
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why? what do you mean by that?
Added the E9X M3 filter surface area, and here's the Puroilator photos:I took apart the new OEM Honda "short" filter and was surprised at the findings.
The NSX's oil filter stats are pretty weak when compared to the OEM filter of:
1991-2005 NSX - 3.0/3.2L - 6qt - OEM filter: 129.5 sq/in
1991-2005 NSX - 3.0/3.2L - 6qt - Purolator L24484: 91 sq/in (1.75x52")
1995-1999 E36 BMW M3 - 3.0/3.2L - 6qt - OEM filter: ~330 sq/in
2008-2013 E9X BMW M3 - 4.0L - 8qt - OEM filter: ~ 366 sq/in (4x91.5")
1990-2004 Mazda Miata - 1.6/1.8L - 4qt - OEM filter: 102.5 sq/in
I am going to buy and cut open a L24484 and post the results of the design and surface area, but either way the OEM Honda 'short' filter is not much better than a Miata and IMO does not cut it especially for track use.
As a background, these websites are good reads on the different designs, components, and materials of oil filters:
http://minimopar.knizefamily.net/oilfilters/reference.html
http://shoclub.com/news.php?extend.6
From the above sites, metal end caps and rubber/silicon anti-drain back valves are characteristics of higher quality oil filters. The above sites also show an average filter surface area of 300sq/in and 200sq/in respectively for the given application.
Here's what I saw when I cut it open:
OEM Honda "Short" Filter housing:
Visually on par high quality rubber/silicon anti-drain back valve:
Filter elements cut out and cartridge leaf spring below. I used a razor blade and carefully cut as close to the end caps as I could and stretched the whole thing out and measured:
Total Surface Area = 129.5sq/in!!
By comparison, here's the 1.6L OEM Miata filter:
Similar high quality anti-drain back valve and cartridge leaf spring below:
Total Surface Area of 102.5sq/in:
Please post your findings of different filters and corresponding surface area.
Billy
Purolator L24484:
Anti-drainback valve looks of similar materials and design:
Cartridge leaf spring is the same design as OEM Honda and Mazda:
The inner cylinder has noticeably LESS holes than OEM:
Purolator L24484 Filter is 1.75" wide x 52" which gives a total Surface Area: 91 sq/in
The Purolator L24484 is NOT a better alternative to the short OEM Honda filter, and has less filtering surface area.
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I'd be curious to see the stats on the Denso 150-1013, specifically the media sq/in. and over all construction.[h=2][/h]
+1 I'm a regular user of this filter, so I'm curious too.
Cut your used filters open, and measure them!
Billy I am curious which filter you are running? Thanks.
A good review of the internals of many filters:
http://www.supramania.com/forums/showthread.php?42763-Conventional-Oil-Filters
A good review on MAHLE filters:
https://www.youtube.com/watch?v=M8Ezg0bkFiU
Good video on how oil filters work (but long) by MANN Filters:
https://www.youtube.com/watch?v=AajTItBn148
WIX NSX Filter Specs:
http://www.wixfilters.com/Lookup/PartDetails.aspx?Part=51378
You can get the following filters on amazon: http://www.amazon.com/gp/part-finde..._m=ATVPDKIKX0DER&pf_rd_r=0HN0F7Y3W7V50NXQ53FR
OEM Honda:__________________ ?
OEM Denso: 150-1013 (4.6 x 3.4 x 3.4)
MANN: ML1036 (4.1 x 3.4 x 3.4)
Bosch: 77220 Premium (4.2 x 3.4 x 3.4)
Bosch: 72200 - same size as old Honda/Denso?
Bosch: 72200WS (5.8 x 3.8 x 3.8) - HUGE, not sure if it'll fit?
WIX: 51378 (3.4 x 3.4 x 3.4)
Purolator: L24484 - as measured above (4.2 x 3.4 x 3.4)
I might have to buy some of the above and cut them open. Especially that Bosch 72200WS. Just remember these sizes are of the box and the real dimensions could differ slightly. Also the larger the canister does not mean there will be more surface area, as we saw with the larger Purolator having less surface area than the smaller OEM housing filter.
For me, i'm still using the OEM little Honda filter because it seems like its built very well. However i'm intrigued by the Wix, Mann and Bosch filters. Need to open them up.
Link to an old NSX filter thread: http://www.nsxprime.com/forum/showthread.php/132667-oil-filter
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Hate to dredge up the oil filter issue but I searched this whole thread and the one thing I couldn't find is the area, pleats and depth info for the OEM Honda TALL filter.
Has anyone cut and measured the original tall filter?
Has anyone cut and measured the original tall filter?
We're too busy either driving (or for the gay crowd, polishing) our cars than to even consider anything as useless, trivial or inconsequential as dissecting a God damned oil filter. Now that the Tall Honda filter has been retired, simply grab a bunch of Denso 150-1013 filters on Amazon and call it a day.
shawn110975
Suspended
Amen... the oil pedistol is the same on all years so is the amount oil going thru the 1 inch hole is still the same
^you sound like you use Fram filters 
^you sound like you use Fram filters
LOL Billy. Knock em dead this weekend buddy. Sorry for not getting in touch sooner but I've been busier than a Chinese hacker trying to steal American credit card numbers on the Net.
Didn't really mean to set off a tirade Hugh, you really must be having a busy week! You are right and it is inconsequential in the grand scheme of things but I want to know to know what truly is the closest form, fit and function replacement for the filter spec'd for the car. And do it based on objective data. And do it based on data (the eng in me I guess). Since I do want to be driving my car for many years to come it seems spending a couple hours to determine its getting the best filtration protection possible seems worthwhile. Then I'll go for a nice long drive, come home and clean and polish the car- best of both worlds!
shawn110975
Suspended
I only use Honda filters they are only 12 bucks so why not right LOL
Where are we on this?
I agree. I have never seen an expiration date or best before date on oil.
Engine hours is the best measure for you next oil change. Engine hour meters are dirt cheap. Why doesn't everyone have one?
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