Has Anyone Used Green Filters

[nickruggeri]

Has anyone been using Green Filters replacing the stock engine air filter. I have a 2025 Maverick XLT AWD 2.0 Ecoboost. I'm having a hard time finding the correct part number online because of the engine being updated. But I have come across these filters which people have said are better then K&N.

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[matmondro]

Right on their website

I had one in my Focus ST years back and it worked fine. Really the only difference was getting more turbo whoosh sound.

 

[MaverickDragon]

I haven't seen these before, but it looks to be similar in concept to a K&N in that it's a clean and re-oil type filter.
As far as performance gains, that would require retuning as the engine computer will adjust to optimize air fuel ratio. Tuning an in warranty vehicle may be asking for warranty trouble.

The major problem with the K&N is they are reported to pass dirt.
With better air flow, that is a possibility. It also depends on driving conditions.
In a very dusty environment that may be more of a risk.
Off road drivers are the ones who often complain about K&N's.

With the required oil and cleaning kit, it's pushing a Benjamin, but you might end up saving if it holds up with reuse. I use an oiled filter on my motorcycle, and have found that Dawn dishwashing liquid does a great job of cleaning, and is a lot less expensive than the cleaner they offer.

They also have a fairly limited application e.g. they don't make filters for the hybrid.

 

[Johnnycrouch]

Are they better than the stock filter?

 

[Busa789]

A filter change won't require a tune. It also is very unlikely to provide any performance (power) advantage. It is possible that it won't filter as well as a stock filter. Personally, I would only put in an OEM or quality aftermarket replacement. In most cases they aren't needed very often and if you catch them on sale they aren't expensive. I loaded up on Purolator air and cabin filters when AutoZone was clearancing the brand.

 

[MaverickDragon]

As @Busa789 said, a filter doesn't require a tune, and he's right.

My point was that unless the engine behavior is changed via a tune, any change in intake flow via a less restrictive filter won't make a difference in performance without it.
The reported performance increases seem dubious based on a filter change alone.
.
I'm sure that the Green Filter company will tell you that they are better than anything.
They are also trying to sell you a product.

The green filters seem to be geared more to extreme performance applications, where engines are run to their limits, and more air flow with the right tuning can make a difference.
Track cars are made to win, not to last, so performance is the primary consideration.
Most people don't drive that way, and prefer a car survives for the long haul rather than the best at a quarter mile.

Paper filters do a more than adequate job of only allowing clean air into the engine.
For most people, they last a considerable time before needing replacement.

Green filters may do an adequate job, but the K&N which is very similar in design has mixed reviews. K&N will tell you that their filters are the greatest thing since sliced bread.
Some people would agree, others have had problems.

I guess it comes down to whether you trust a company that is selling a product versus a known commodity.

 

[Busa789]

An increase in airflow can create more power without a tune, within a limited range. All of our modern vehicles adjust on the fly for different conditions. If you measure power at 72 degrees at sea level then again in Denver, CO (the mile high city), you will see a noticeable difference in power. The ECU handles this fine. The idea that an air filter will make more airflow and therefore more power is dependent upon the filter being the major limiting factor in airflow. I really doubt that Ford engineers are forcing our little engines to "breath through a straw" as that would make them less efficient.

 

[Chops]

Track cars are made to win, not to last, so performance is the primary consideration.
Most people don't drive that way, and prefer a car survives for the long haul rather than the best at a quarter mile.

Not sure how many miles/years is considered “long haul” for a Maverick.

That one forum member who gave a positive 100,000+mile/3year review was searching for a better term than “cheap” when describing the overall feel. He used the term “built lightly” after thinking for a second

He was changing his oil every 3,000 miles and said he would go longer in the future because he had doubts about how much longer his lightly built Maverick would survive.

Anyway, I use the OEM Motorcraft filter - but think something else will get me regardless of my air filter choice.

 

[MaverickDragon]

If you measure power at 72 degrees at sea level then again in Denver, CO (the mile high city), you will see a noticeable difference in power.

There is less air pressure at altitude but more importantly, there is less oxygen, so the engine with electronic systems will reduce the fuel input to efficiently burn the fuel, where a carbureted engine without feedback mechanisms will run poorly as it will be running too rich for the increased elevation which has less oxygen to burn.

The idea that an air filter will make more airflow and therefore more power is dependent upon the filter being the major limiting factor in airflow. I really doubt that Ford engineers are forcing our little engines to "breath through a straw" as that would make them less efficient.

That's true. An engine's intake system is calibrated to have an adequate air supply for the stock configuration. Being able to take in more air doesn't increase power unless it was restricted in the first place.
More air than is needed doesn't improve performance, because it isn't used.

The fuel / air mixture is dynamically changed to prevent over rich or too lean combustion.
That's why a tune is typically needed to take advantage of an increase in airflow so the engine's air-fuel mixture and ignition settings can take full advantage of the increased airflow.

A point not noted in any of the air filter testimonials - If the engine is producing more power it is because it is using more fuel.
With the cost per gallon going up, that doesn't seem to be result worth chasing currently.

 

[Chops]

An increase in airflow can create more power without a tune, within a limited range. All of our modern vehicles adjust on the fly for different conditions. If you measure power at 72 degrees at sea level then again in Denver, CO (the mile high city), you will see a noticeable difference in power. The ECU handles this fine. The idea that an air filter will make more airflow and therefore more power is dependent upon the filter being the major limiting factor in airflow. I really doubt that Ford engineers are forcing our little engines to "breath through a straw" as that would make them less efficient.

Your quarter mile times & 0-60 will be a bit slower/longer in Denver

 

[blkSTIG32]

An increase in airflow can create more power without a tune, within a limited range. All of our modern vehicles adjust on the fly for different conditions. If you measure power at 72 degrees at sea level then again in Denver, CO (the mile high city), you will see a noticeable difference in power. The ECU handles this fine. The idea that an air filter will make more airflow and therefore more power is dependent upon the filter being the major limiting factor in airflow. I really doubt that Ford engineers are forcing our little engines to "breath through a straw" as that would make them less efficient.

I live an hour south of Denver in Colorado Springs. 7000ft elevation with an average 9000ft DA. Our turbos and engines have to work exponentially harder to produce the same power at sea level. With a less restrictive intake we notice the improvements they produce.

 

[Chops]

I live an hour south of Denver in Colorado Springs. 7000ft elevation with an average 9000ft DA. Our turbos and engines have to work exponentially harder to produce the same power at sea level. With a less restrictive intake we notice the improvements they produce.

“Denver Proven” as a marketing slogan for a CAI might just convince me to purchase. Any recommendations

 

[Busa789]

I live an hour south of Denver in Colorado Springs. 7000ft elevation with an average 9000ft DA. Our turbos and engines have to work exponentially harder to produce the same power at sea level. With a less restrictive intake we notice the improvements they produce.

For sure all engines are affected by elevation. The nice thing about forced induction is they may be able to overcome the lower density air with boost. My turbo bike, for example, can make more boost than it can safely use, so it would be less affected at elevation. Any forced induction uses more air (that's the point) so providing adequate induction is important. All bets are off on a stock air intake when a turbo is added.

 

[Joshoc88]

As @Busa789 said, a filter doesn't require a tune, and he's right.

My point was that unless the engine behavior is changed via a tune, any change in intake flow via a less restrictive filter won't make a difference in performance without it.
The reported performance increases seem dubious based on a filter change alone.
.
I'm sure that the Green Filter company will tell you that they are better than anything.
They are also trying to sell you a product.

The green filters seem to be geared more to extreme performance applications, where engines are run to their limits, and more air flow with the right tuning can make a difference.
Track cars are made to win, not to last, so performance is the primary consideration.
Most people don't drive that way, and prefer a car survives for the long haul rather than the best at a quarter mile.

Paper filters do a more than adequate job of only allowing clean air into the engine.
For most people, they last a considerable time before needing replacement.

Green filters may do an adequate job, but the K&N which is very similar in design has mixed reviews. K&N will tell you that their filters are the greatest thing since sliced bread.
Some people would agree, others have had problems.

I guess it comes down to whether you trust a company that is selling a product versus a known commodity.

Used on ecoboosts the 24hrs le mans, that's a track car that's built to take some abuse. Not just a drag car.

 

[Shelbyv8]

The only time a high flow air filter makes a difference is at full throttle. The rest of the time the driver's foot controls the air flow.

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