Microgard vs Microgard Select Air

[Johnny248]

Is there actually a difference between these filters other than the color? The standard says

Air filter laboratory tests per ISO 5011: 97.5 percent minimum efficiency (Based on Microgard part number: MGA42484).

However they don't list anything like this on the Select.

 

[twX]

I don't know, but I wouldn't use an air filter with an efficiency rating of only 97.5%.

 

[Johnny248]

It is hard to read this ISO that (for me at least). If I'm reading it correctly they monitor from 2.5 micron to 80 micron? If everyone is telling the truth, those filters are just slightly better than a K&N

 

[twX]

It is hard to read this ISO that (for me at least). If I'm reading it correctly they monitor from 2.5 micron to 80 micron? If everyone is telling the truth, those filters are just slightly better than a K&N

They use a standard type of dust with a known particle size distribution, with particles ranging from <1 micron to 80 micron. The efficiency is just based on the percentage of dust that gets filtered based on mass, without measuring particle sizes, which is why air filters don't get a "micron rating" like oil filters do.

Based on the K&N data sheets I've seen, a typical K&N would have an average efficiency of 98%. Microguard claims a minimum efficiency of 97.5%. "Minimum efficiency" isn't a standard term, but they might mean "Initial Efficiency", which will always be lower than the average efficiency. If that's the case, it should perform a bit better than your average K&N, but it still wouldn't be very efficient.

I'd use a filter that claims 99% efficiency, or close to it, such as a FRAM Ultra or PurolatorOne. OEM is usually a good choice as well.

 

[Johnny248]

They use a standard type of dust with a known particle size distribution, with particles ranging from <1 micron to 80 micron. The efficiency is just based on the percentage of dust that gets filtered based on mass, without measuring particle sizes, which is why air filters don't get a "micron rating" like oil filters do.

Based on the K&N data sheets I've seen, a typical K&N would have an average efficiency of 98%. Microguard claims a minimum efficiency of 97.5%. "Minimum efficiency" isn't a standard term, but they might mean "Initial Efficiency", which will always be lower than the average efficiency. If that's the case, it should perform a bit better than your average K&N, but it still wouldn't be very efficient.

I'd use a filter that claims 99% efficiency, or close to it, such as a FRAM Ultra or PurolatorOne. OEM is usually a good choice as well.

I would hope that and paper filter would outperform an K&N. I was going off of this that I found

I have a Microgard Select in one of my vehicles. It is green, and has some sort of pre-filter later on top, which I don't believe the OEM has, and most of the AM I looked at don't either. I'm hoping that it is a pretty decent filter.

 

[gasman556]

I would hope that and paper filter would outperform an K&N. I was going off of this that I found
View attachment 297997
I have a Microgard Select in one of my vehicles. It is green, and has some sort of pre-filter later on top, which I don't believe the OEM has, and most of the AM I looked at don't either. I'm hoping that it is a pretty decent filter.

View attachment 297999

I know I’m late to this thread, but afaik amsoil does not make air filters. They will sell you wix filters via their site, but don’t have amsoil branded air filters last I checked. I’d verify this chart is valid with that data point in mind. If I’m wrong, @Pablo would definitely be able to confirm. HTH

 

[Pablo]

I know I’m late to this thread, but afaik amsoil does not make air filters. They will sell you wix filters via their site, but don’t have amsoil branded air filters last I checked. I’d verify this chart is valid with that data point in mind. If I’m wrong, @Pablo would definitely be able to confirm. HTH

Amsoil sold car oiled foam air filters years ago. Maybe 20 years ago now.

 

[Johnny248]

Amsoil sold car oiled foam air filters years ago. Maybe 20 years ago now.

They also made paper style filters. They were EA air filters.

 

[Pablo]

They also made paper style filters. They were EA air filters.

Well yes the Injen conical air filters

 

[Johnny248]

Well yes the Injen conical air filters

But they also had regular replacement filters. I had one at one point.

 

[Pablo]

But they also had regular replacement filters. I had one at one point.

View attachment 299739

True. Short period of time. Somewhere in the 2012-14 range. I can't remember exactly.

 

[Pablo]

But they also had regular replacement filters. I had one at one point.

I think the point got lost somewhere. The TS123 air filter in that ancient chart was an oiled foam unit.