Safe to switch used oil filters between cars?

[Kralik]

OK, this is a bit of an odd question, in somewhat odd circumstances:

My friend and I both have Fords that take the same size of oil filter. Two weeks ago, we both changed our oil. I used an Amsoil EaO filter and he used a FRAM filter. We both used the same oil. Since then a couple things have changed, and it looks like I may be selling my vehicle and he will be giving me his. With around 100-200 miles on each vehicle since the oil change, would it be safe to swap oil filters? I'd hate to give away the Amsoil filter which cost me $15, and then have a stranger toss it in 3000 miles.

Thanks!

 

[JustinH]

Sell the car and cut your losses. I wouldn't mess with it bud.

 

[XPR]

Just buy another EaO

 

[Triple_Se7en]

Take the Amsoil filter off & drain the contents. Then put it on your next ride. If it doesn't leak, you are good-to-go. Odds are, it won't leak.

 

[Octane]

I really don't see the point in this personally? Inform the new buyer about the filter and he or she will change it when they want to.

 

[Gary Allan]

Swap away! $15 is $15. It's not like it's toilet paper

 

[cmhj]

IMO this is silly. However, if keeping this filter is so important, just do it.

 

[6spdkeg]

Kind of a different question, but still on topic.
Does anyone think it's valid for me to use another engines filter in this case?

I have a K20a2 8400rpm 2 liter Honda motor, I'm thinking of using a Honda s2000 oil filter instead of the one spec'd for my motor. Ap1 s2000's spin 9,ooo + rpm. It will fit, the gasket size is the same, both appear to have about the same capacity but are different shapes. s2000 is larger in Diameter but more squat in length. I actually think the more squat filter would be better fo keeping the heat from the header off the filter housing itself.

The reason I'm looking for a different filter is for increase flow and b/c I might use a modified s2000 oil pump in my engine b/c I want to run Higher RPMS. The s2000 filter was specially designed for the motor I guess so it has to have some benefits and I'm thinking that is b/c of the flow increase mainly b/c Honda S2000 has a better oil pump for higher pressure and flow. The S2000 oil pump also doesn't start to cavitate untill a higher rpm/flow.

I looked at many FILTER websites to try and find actual flow ranges for each filter. All I found were flow rating from WIX and both filter for K20a2 and F20a motors was 9-11GPM

s2000 F20
http://www.wixfilters.com/filterlookup/i...p;TempYear=2002

RSX-S K20a2
http://www.wixfilters.com/filterlookup/i...p;TempYear=2005

Thanks for your input in reasurring my sane decision to use a different filter

 

[Gary Allan]

Part Number: 51334
UPC Number: 765809513341
Principal Application: Acura (88-05), Chevrolet (85-88), Dodge (91-96), Ford (88-96), Honda (72-05), Hyundai (89-07), Isuzu (85-04), Kia (01-07), Mercury (87-91), Mitsubishi (89-98), Subaru (87-07), John Deere, Kobelco, Komatsu, Kubota, Onan, Toro & Yanmar Diesel
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 3.194
Outer Diameter Top: 3.252
Outer Diameter Bottom: Closed
Thread Size: 20X1.5 MM
By-Pass Valve Setting-PSI: 8-11
Anti-Drain Back Valve: Yes
Beta Ratio: 2/20=22/40
Burst Pressure-PSI: 280
Max Flow Rate: 9-11 GPM
Nominal Micron Rating: 19

Gasket Diameters
Number O.D. I.D. Thk.
Attached 2.475 2.173 0.233

Part Number: 51356
UPC Number: 765809513563
Principal Application: Acura (02-07), Chrysler Imports (92-06), Ford Probe (93-97), Honda (01-07), Infiniti/Nissan (96-07), Mazda (71-00), Mercury Villager (99-00), Mitsubishi (90-06), Saturn (04-07), Outboard Marine Engines, Various HD Equip.
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 3.402
Outer Diameter Top: 2.685
Outer Diameter Bottom: Closed
Thread Size: 20X1.5 MM
By-Pass Valve Setting-PSI: 8-11
Anti-Drain Back Valve: Yes
Beta Ratio: 2/20=6/19
Burst Pressure-PSI: 363
Max Flow Rate: 9-11 GPM
Nominal Micron Rating: 19

Gasket Diameters
Number O.D. I.D. Thk.
Attached 2.475 2.173 0.233


..as unlikely as it may be

 

[westwind999]

I'm not a filter expert but I know some people are using the S2000 filter on other Honda's without incident. The one reason I wouldn't do it is because the beta ratio is outstanding on your stock 51356 filter (2/20=6/19 compared to 2/20=22/40) It appears that the S2000 filter allows particles 2 to 3 times larger to go thru the engine. The 22/40 number isn't particularly bad though compared to a typical filter.

 

[6spdkeg]

Thanks for posting that info Gary Allen. Very interesting why the S2000 filter has a lower Burst Pressure. The s2000 even specs a thicker oil than the K20a2 Acura RSX-S motor??

Quote:

---

I'm not a filter expert but I know some people are using the S2000 filter on other Honda's without incident. The one reason I wouldn't do it is because the beta ratio is outstanding on your stock 51356 filter (2/20=6/19 compared to 2/20=22/40) It appears that the S2000 filter allows particles 2 to 3 times larger to go thru the engine. The 22/40 number isn't particularly bad though compared to a typical filter.

---

Yeah, I've read about a few people using the s2000 filter instead of their B18B/C or B16A/B and K20 motors. I guess a few people have stated that some very respectable race teams like spoon and mugen do the same. That was all "Word of Mouth" so I just take with a grain of salt.

The Micron level that you are talking about probably is more lower b/c they want higher flow on the motor. Kinda just like people say about the K&N "you give up filtration for flow"

Like I said before, I like the idea of using the S2000 filter for flow mainly, but it also has kind of an Extra bonus feature as it is further away from header than the stock filter. It's only .2" further away, but I'm sure it still helps.

I found the wix filter for $6.59 at Arnolds and $5.99 at Advanced AutoParts. OEM is in that range too so I might just go OEM when I can actually get to the dealer before they close!! I heard the Wix outflows a lot of filters so I went with it. I'm not dead set on it though. I'll have the check the differences in other s2000 filters if I can find data like Gary Allen with Amsoil came up with.

 

[Gary Allan]

Well, the higher burst strength isn't much more than the inherent properties of a smaller diameter can. If you ratio the diameters ..they roughly contour the burst strength ratio.

When it comes to this "flow" thing, try and keep in mind that the filter, in itself, is a deceleration chamber. Now the media may be an intermediate choke of a sorts ..a place where, in the various orifices that its composed of, the oil has to accelerate ..but, mostly, the oil slows considerably. The filter has a diameter of about 3" ..the outlet threaded port is probably less than 7/16^" ..you can fit many 7/16^" pipes in a 3^" can.

Once the engine is fully enveloped in oil (all passages being full) ..the filter isn't even there. Now you can surely, especially with a screaming engine, have "trasitions" where the oil may not be able to accelerate in the blink of an eye (it has mass) and you may get a blip of bypass (or near bypass) activity where the pump may spin its tires just a bit until it hooks up again ..but it's mostly a non-issue.

 

[GROUCHO MARX]

Add 15 dollars to the sale price.

 

[GROUCHO MARX]

" Two weeks ago, we both changed our oil. I used an Amsoil EaO filter and he used a FRAM filter."
--------------------------------------------------------------------------
You're not much of a friend.

 

[Dad2leia]

Not to sound stupid, but could someone explain those beta ratio numbers to me. I don't get what they are supposed to represent filtration wise.

 

[6spdkeg]

Quote:

---

Not to sound stupid, but could someone explain those beta ratio numbers to me. I don't get what they are supposed to represent filtration wise.

---

the higher the number, the larger the partical. The larger the number the manufacturer displays, the more flow or WORSE filtering the filter is capable of.

40 micron partical is larger than a 20 micron particle. For a filter to grab a 6 micron particle, that is pretty Frickin incredible if you ask me. I'm not sure if the 6 represents what it actually will filter out though.

The average human hair is ~ 50 microns wide. 40 microns is said to be un-noticable to the naked eye.

The symbol for micron looks like a cursive, lowercase "u"

Micron = 1 millionth of a meeter or 1/25000th of an inch

 

[6spdkeg]

hmm, good info here - google is great!

I'm a bit off in the way I talked about Microns being part of the Beta ratio definition, but microns are the basis of measurement and is included in the calculation.

The Beta Ratio is defined as follows:

Beta (x) = Number of particles > size (x) upstream / Number of particles > size (x) downstream
[Where x = particle size in microns]

http://www.lenntech.com/cartridgefilter-bagfilter.htm
find the Beta Ratio info near the bottom of the page.
http://www.lenntech.com/beta-ratio.htm

 

[6spdkeg]

Quote:

---

Quote:

---

Not to sound stupid, but could someone explain those beta ratio numbers to me. I don't get what they are supposed to represent filtration wise.

---

the higher the number, the larger the partical. The larger the number the manufacturer displays, the more flow or WORSE filtering the filter is capable of.

---

I said this wrong.

The Micron rating of the filter is here in (( ))
2/20 = ((6))/19

The lower that number, the better filtration that filter is shooting for.

The higher the Beta ratio number found in (( )) here
2/20 = 6/((19)) The better efficiency the filter has at removing the 6 micron particles.. .

more info here
http://www.filtrationtips.com/2005_09_08.htm

Quote from above site
"The efficiency of the filter can be calculated directly from the beta ratio since the % efficiency is simply (beta-1)/beta x 100. A beta 75, 3-micron filter is thus said to be 98.66% efficient at removing 3 micron and larger particles. It is important to note that a change in the beta rating from 75 to 200 at the same micron rating represents an increase of less than 1% in efficiency, but the beta 200 filter is more than 3 times more effective at removing 3 micron and larger particles than the beta 75 filter. "

I don't know what the 2/20 stands for yet but.. .

I take it that the 6/19 means:
6 micron filter with a 19 Beta ratio. 19 Beta ratio is a 94.74% efficient filter at removing 6 micron particles or larger.

The s2000 filter of 22/40 says it is 22 micron filter made to catch 97.5% of 22 micron or larger particles

22 micron filter is going to flow better than a 6 micron filter.. .

Sorry I posted so many times instead of editing the posts. I haven't figured out how to edit my posts yet or can you?

 

[Dad2leia]

Got it now, thanks so much 6spdkeg. I don't think we can edit, except that you can check the Preview Reply feature on the side of the quick reply, then you can proof read your response.

So based on those figures, which filter are you going to go with?

 

[6spdkeg]

If I was going with longer OCIs, I would go with the OEM spec'd filter b/c it filters better. I don't really need this since I change oil after ever race and or 3,000 miles b/c I drive hard.

Since I road race my car for my fun, not wheel to wheel yet, I want maximum flow to keep up Oil pressure for bearing protection . The s2000 filter is what I am going to use.

I will use these s2000 Wix filters for now(Napa Golds are the same thing) and or OEM s2000 if I can get to the Honda Dealer in the future.

If I need to shoot for an even higher oil PSI, I might try a K&N s2000 filter and see if it gives me a boost. I need to invest in a Oil Pressure Gauge setup first before I spend the $12.50 on the K&N to prove a point though.