Has anyone used MicroGreen oil filters?

Chance Neel · February 20, 2017

Curious if anyone has used these and has anything to add.

http://www.microgreenfilter.com/Product/990/mg301-8

Chance Neel · February 20, 2017

Some statements found on Bobistheoilguy

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use the MG 301-1 (about a double oversized) for my '07 Prius with M1 5W30 EP and run it 10k miles per change.

Oil looks almost new coming out.

Very happy with it.

110,000 miles on the car, burns about 1/3 of a quart every 10k miles. This means I don't need to add any oil between changes.

Notes:

1) Yes, I know I'm not using the filter as advertized.

2) Yes, I know I'm not running the M1 EP for the "full" 15k miles.

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OK, so I'm at around 4200 miles on a tiny microgreen. Fram Extended guard (nee' ultra) and p1 had me screaming to get the opaque black oil out @ or before this mileage. I'm going to be able to easily hold out to the max via Owner's Manual 4800 - still translucent brown. It's working well in my application

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Colossus · February 21, 2017

Oil filtration is probably the most critical function of the engine. Claims of being able to go up to 30,000 miles in ideal situations with this filter is an instant turn off right there. As it stands, many people are not using the right type of oil filter for their vehicles. That stock AC/Delco that gets slapped on your vehicle at the dealership? That's not a premium filter, meaning its a 5000 mile max filter. Yet the oil life monitors which dont actually sample the oil itself but rather the way the vehicle is used- will oftentimes not flag the change oil light until 7000-8000+ miles. There's a good chance that your basic oil filter there is already dirty enough and in bypass mode, meaning little to no filtration.

Know the type of oil filters you are using, and use the right type of oil filter for your extended oil change interval habits. If you are doing a 3000-5000 mile oil change, your basic AC/Delco filter will be PERFECT for it. After that, start looking at the premium line of filters. IE Napa Gold for up to 7000 miles, Platinum for up to 10,000 miles.

Chance Neel · February 26, 2017

Oil filtration is probably the most critical function of the engine. Claims of being able to go up to 30,000 miles in ideal situations with this filter is an instant turn off right there. As it stands, many people are not using the right type of oil filter for their vehicles. That stock AC/Delco that gets slapped on your vehicle at the dealership? That's not a premium filter, meaning its a 5000 mile max filter. Yet the oil life monitors which dont actually sample the oil itself but rather the way the vehicle is used- will oftentimes not flag the change oil light until 7000-8000+ miles. There's a good chance that your basic oil filter there is already dirty enough and in bypass mode, meaning little to no filtration.

Know the type of oil filters you are using, and use the right type of oil filter for your extended oil change interval habits. If you are doing a 3000-5000 mile oil change, your basic AC/Delco filter will be PERFECT for it. After that, start looking at the premium line of filters. IE Napa Gold for up to 7000 miles, Platinum for up to 10,000 miles.

the filter doesn't state it can go 30k miles they say to replace it every 10k. A UOA was posted of someone that did the 30k at BITOG and it looked ok.

sdeeter19555 · February 26, 2017

the filter doesn't state it can go 30k miles they say to replace it every 10k. A UOA was posted of someone that did the 30k at BITOG and it looked ok.

A UOA is for that oil and that engine, and while some info can be extrapolated from someone else's analysis, it doesn't tell you what will happen on your engine.

The comment about the filter being in bypass by 5k miles...I have a thought on this. First, the oil system is a closed system, it's not like an air filter that sees a steady stream of previously unfiltered air. It's filtering the same previously filtered oil that was in the sump. Just how much dirt does one expect to have sheading off a healthy engine? Second, the oil filter isn't meant to filter dirt...it's actually meant to filter debris from a catastrophic engine failure. A lot of early engines never had filters and survived just fine...filters are a bonus, not a necessity. The filter on these vehicles isn't fine enough to catch the extremely small particles in that system...think of it as a window screen catching big chunks.

I would think any small filter capable of filtering the soot from oil (what makes it black) would also restrict flow. It's going to be a compromise...you can't have it both ways (unless you would install a dedicated bypass filter like a Frantz). I have not looked at the microgreen, but messing with the full-flow oil filter is not a good idea in my opinion.

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diyer2 · February 26, 2017

Makes sense to me sdeeter19555.

Chance Neel · February 26, 2017

It doesn't "mess with the flow". Take a look at its design.

sdeeter19555 · February 26, 2017

It doesn't "mess with the flow". Take a look at its design.

You can't have a similar sized filter that is more efficient that doesn't restrict flow, whether at new or at some point during use...it's a compromise. I don't even have to look at the design to understand that.

There have been a lot of aftermarket whiz bang filters over the years, the only one that won't affect flow is a dedicated bypass.

Further, the likelihood that a replacement filter will filter soot is unlikely. The only two filters I have seen remotely capable of that fine of filtration is a Frantz and Gulf Coast and maybe the original Amsoil BE series bypass.

Have a nice day, you are already sold on this whiz bang filter, so what others have to say is meaningless at this point.

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Colossus · February 27, 2017

the filter doesn't state it can go 30k miles they say to replace it every 10k. A UOA was posted of someone that did the 30k at BITOG and it looked ok.

I humbly stand corrected.

Chance Neel · February 28, 2017

A UOA is for that oil and that engine, and while some info can be extrapolated from someone else's analysis, it doesn't tell you what will happen on your engine.

The comment about the filter being in bypass by 5k miles...I have a thought on this. First, the oil system is a closed system, it's not like an air filter that sees a steady stream of previously unfiltered air. It's filtering the same previously filtered oil that was in the sump. Just how much dirt does one expect to have sheading off a healthy engine? Second, the oil filter isn't meant to filter dirt...it's actually meant to filter debris from a catastrophic engine failure. A lot of early engines never had filters and survived just fine...filters are a bonus, not a necessity. The filter on these vehicles isn't fine enough to catch the extremely small particles in that system...think of it as a window screen catching big chunks.

I would think any small filter capable of filtering the soot from oil (what makes it black) would also restrict flow. It's going to be a compromise...you can't have it both ways (unless you would install a dedicated bypass filter like a Frantz). I have not looked at the microgreen, but messing with the full-flow oil filter is not a good idea in my opinion.

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yoire making assumptions and making them incorrectly in this case.

Firstly it comes down to surface area and flow rate. You're making the assumption that for there to be bypass the surface area must have been restricted. The filter is slightly larger and the filtering area is the same. No part of the regular surface area was altered to create the bypass portion. The bypass filter is located on top where most filters have nothing. The bypass works because under pressure the entire housing is filled. It's completely pressurized so the fluid flows freely though the normal filter then a portion goes through the additional filter above. At worst case the top filter becomes 100% clogged and the oil still flows normally though the regular filter.

Chance Neel · February 28, 2017

You can't have a similar sized filter that is more efficient that doesn't restrict flow, whether at new or at some point during use...it's a compromise. I don't even have to look at the design to understand that.

lol what physics class didn't you pass? Flow rate=filtration rate*surface area. By increasing the surface area you can greatly increase the filtration rate without decreasing flow. In this case you could even ADD AN ADDITIONAL FILTER MEDIUM in an area that previously didn't have one and suffer zero loss in flow. I can explain it to you but I can't understand it for you. The fact you'd make such blind statements based on your own assumptions when you haven't even bothered looking g at it says something. What made you think it was the same size? What made you think there was an alteration to the size of the filter? Why would you think it not possible to increase the size of the medium without increasing the size of the filter when every single filter does this? Look at the filter in your HVAC it has riffles for a reason. It increases the surface area of filtration without decreasing flow. What's meaningless at this point is someone who doesn't understand physics, engineering, fluid dynamics, or how to use google passing their blind thoughts as substantiated fact.

The microgreen might not work as well as advertised, I'm going to find out, but to think it's LESS capable is just an ignorant statement. 99% filtration at the 20 micron level for the main filter. 99% filtration at the 5 micron bypass@3-5%. For the average car that means all oil has passed through the 5 micron filter ever couple of hours. There's posted UOAs if you bothered looking but it's easier to just make blind assumptions.

sdeeter19555 · February 28, 2017

But you have a limit on the size of the can and the media it can hold, and the finer media will plug faster...and then what good is it if it's in bypass? Looks pretty useless to me?

Again, since you already know everything about these whiz bang filters, why are you asking? I'd just read all the truthful claims the manufacturer makes and take them for their word.

Not on my engine...

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