The Best Engine Air Filter in the World and Why

Engine air filter. The Best Engine Air Filter in the World and Why, DIY with Scotty Kilmer. Engine air filter replacement. Car engine air filter. OEM air filter vs aftermarket. Are OEM air filters better than aftermarket? Are reusable air filters good? Are k&n air filters bad for your car? Are k&n air filters worth it? Engine air filters explained. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years. Scotty Kilmer, gives you a chance to win a car product, by entering in this weekly giveaway.

⬇️Scotty’s Top DIY Tools:

▶If you don’t want to listen to me or have a high performance or off-road vehicle:

Mechanic Monday Official Rules:
1. The Mechanic Monday Giveaway will begin July 23rd at 7 am CST and run for six days, ending on July 29th at 9 am CST.
2. There will be one winner of an OEM engine air filter valued between $15-$80 depending on the make, model, and year of the winner's car.
3. To enter, simply leave one non-offensive comment in the video below.
4. Only one comment per entrant is allowed and more than one comment will not increase your odds of winning.
5. Must be 18 years or old at the time of entering this giveaway OR have your parents’ permission.
6. This giveaway is open worldwide.
7. Any offensive, obscene, or lude comments will be ineligible to win the giveaway.
8. The odds of winning are based on how many people enter the giveaway.
9. The winner will be chosen at random.
10. The winner will receive a reply to their originally posted comment in the video and will also be announced in a newly posted comment by Scotty around Sunday 9 am CST. The winner will be required to respond to Scotty’s comment within 24 hours or their win will become void and a new winner will be chosen at random.
11. The winner will be required to give Scotty their full name and mailing address to receive the prize.
12. Entrants that use computers, programs, or any other means of cheating by adding additional comments through more than one account, will be ineligible to win the giveaway.
13. Standard mailing time from the win date and the date received, will depend on the winner’s geographic location.
14. This giveaway complies with all applicable federal, state, and local laws, rules, and regulations, including U.S. sanctions.
16. This giveaway is in no way sponsored, administered, or associated with YouTube. Entrants are required to release YouTube from any and all liability related to this giveaway.
17. Privacy notice: any and all personal data collected from the entrants and winner will only be used to announce the giveaway winner. The winner’s full name and address will only be used to mail the giveaway prize to the winner and nothing else. If you do not agree to these terms, then do not enter the giveaway.

⬇Things used in this video:
2. Common Sense

Scotty on Social:

This is the people's automotive channel! The most honest and real car channel around, never any sponsored content, just the truth about everything! Learn how to fix your car and how it works. Get a chance to show off your own car on Sundays. Or show off your own car mod on Wednesdays. Tool giveaways every Monday to help you with your own car projects. We have a new video every day! I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.

►Here's our weekly video schedule:
Monday: Tool giveaway
Tuesday: Auto repair video
Wednesday: Viewers car mod show off
Thursday: Car vs Car Contest AND Live Car Q&A
Friday: Auto repair video
Saturday: Second Live Car Q&A
Sunday: Viewers car show off

►Second Daily Upload Every Afternoon of Live Car Q&A videos as well!

Scotty Kilmer is a participant in the Amazon Influencer Program.
#savagescotty

[scottykilmer]

⬇️Scotty’s Top DIY Tools:


If you don’t want to listen to me or have a high performance or off-road vehicle:

⬇Things used in this video:
2. Common Sense




Scotty on Social:

[johnferguson]

QUICK TIP: Use a Sharpie pen to write the date and the mileage that the filter was changed on the side of the new filter when you change it. That way you don't have to guess how long it's been on the car.

[ZEPRATGERNODT]

From a long term K&N employee...
Ever since Goldman Sachs Merchant Banking Division bought the company, many of the raw parts have been sourced and manufactured in China.
The cloth (filtering membrane) is nothing like how it used to be.
It’s more or less a marketing company now selling on its past reputation and history.

[Eagles]

When I first saw you on UTube, I thought you were just another nut on here. But, after watching you on several more videos, I’m beginning to think you’re one of the smartest mechanics I’ve seen. Lots of good videos. Keep up the good work.

[AnarchyRazerX]

Never really could get a definitive answer about OEM vs Aftermarket Air Filters. You saved me some bucks Scotty, Thanks!

[esotericbinauralbeats]

This is the best page on car mechanics I've ever seen!

[Orion]

“And you’re wasting money!” And Starbucks appears. I’m dead

[marcsam]

I watch his entire videos just to see Scotty ring the bell.

[johnsmind]

I've been watching vids on filters for months learning. This video is great for two reasons. It explains exactly what you should do and shows proof why on the OEM pleats. The other is the oil on filters and how it clogs the air flow and ruins a very needed sensor. Pay attention all! Thanks my friend.

[JimGriffOne]

Stock air intake systems are tuned to give a boost to power around the 2-3k rev region on petrol cars while losing power at the lower and higher rev bands. The way pressure waves travel through the intake system, resonances can build up and this can actually be beneficial for NA cars where, at certain revs, the intake will *push* more air into the cylinders than it would ordinarily do. Narrowing of the air intake pipe (impedance control) is used to cause a higher air speed for forcing more air into the cylinders, but this reduces the capacity for instantaneous air flow. It improves efficiency in the daily driving rev range on NA engines but at the cost of some potential power.

Tuning intake systems requires a lot of knowledge, maths and computer modelling to get right, so whacking any old aftermarket filter system onto the car will likely end up with not much gain for a high cost.

For those that like to get the revs up to redline and/or use the vehicle at the highest power point, a well-designed after market intake system and filter can actually boost power by a few % (in the region of 1%-4% depending on the vehicle). This is because they usually have shorter and larger diameter intake pipes that have less 90º bends. More air can flow and it can flow more instantaneously. This usually improves throttle response too. However, there is a cost. They will usually decrease power in the lower to mid rev range, decreasing the efficiency of the engine, as it was specifically designed to work best at a specific air flow rate and rev range.

I'll mention cold air intakes too, that they can improve volumetric efficiency by having a higher mass of air in the cylinders. Simply put, cooler air is more dense, so you can fit more air into the cylinders for a bigger bang with more fuel. Most filter systems are designed with this in mind so aftermarket filters won't usually improve volumetric efficiency by much.

*tl;dr - If you just want to do daily driving, stick with the stock air system but think about the possibility of a better quality air filter. If you're going to mod your car, you probably know all of the above already (except the maths involved in tuning an intake system and the acoustics involved). Perhaps something interesting to learn about.*

[HonestFinance]

Thanks. I use AEM reusables because they don’t require oil, but I should just use OEM.

[fred]

Wix & STP had both in my 2013 Prius C. They look exactly like OEM cost around $20 and worked great!

[Call_MeJD]

I didn't know the water and oil system. Thank you for the history lesson.

[hectorrodriguez]

His videos are not only full of great knowledge, they background pictures makes them hilarious!

[snarine]

When you said, “wasting money” and put the Starbucks coffee, I lost it! That was hilarious!

[gelf]

My experience with K&N cleanable filters is that no matter how well you clean them, they are still going to retain some level of dirt and grime. This will eventually built up over time despite periodic cleaning and will progressively cause deteriorating performance. As Scotty said, oil and grease is not supposed to be in an intake meant for cold air so putting in an oiled filter is counterintuitive to basic mechanics. Overall stick with oem paper filters, they are the simplest and safest option.

[MonaichFother]

People forget to give the inside of the air box a good clean too before changing the filter.

[shawnbeck]

I have been using the K and N air filters for a very long time on many different car engines 4 and 6 cylinders. If you follow the directions and don't over oil the air filter. I find my engines ran better and the sound changed. When going full throttle. Its worth every dime. I cleaned and re oiled my air filter every other oil change. Shawn

[Cotton]

Wix or Purolator make a good many of OEM filters. Either are excellent.

[SevenFortyOne]

Image of a Starbucks Grande Late enema right when you said "wasting money" = perfect image analogy. thanks for the laugh!