K&N Air Filter installed, MPG dropping? - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Zentec · 02-13-2018, 11:30 PM

On my 17 86 I have an k&n drop in and nitrogen in tires I run 93octane gas and live in the desert. Crushing on the highway at 72mph I average 44+mpg now in the cool months.

I have found that with these 3 things I increased 9-13mpg depending on temps and driving style. In town I average 25mpg.

Side note I have tested this on wrx, Imprezas, b9 tribeca, and s2ks and have seen increases across the board and no decrease.

Anthonyc77 · 02-14-2018, 12:38 AM

Quote:

Originally Posted by Zentec

On my 17 86 I have an k&n drop in and nitrogen in tires I run 93octane gas and live in the desert. Crushing on the highway at 72mph I average 44+mpg now in the cool months.

I have found that with these 3 things I increased 9-13mpg depending on temps and driving style. In town I average 25mpg.

Side note I have tested this on wrx, Imprezas, b9 tribeca, and s2ks and have seen increases across the board and no decrease.

What tire pressure?

Sapphireho · 02-14-2018, 12:42 AM

Quote:

Originally Posted by Zentec

On my 17 86 I have an k&n drop in and nitrogen in tires I run 93octane gas and live in the desert. Crushing on the highway at 72mph I average 44+mpg now in the cool months.

I have found that with these 3 things I increased 9-13mpg depending on temps and driving style. In town I average 25mpg.

Side note I have tested this on wrx, Imprezas, b9 tribeca, and s2ks and have seen increases across the board and no decrease.

And we care because....

Zentec · 02-14-2018, 01:25 AM

Quote:

Originally Posted by Anthonyc77

What tire pressure?

35psi all around on 225 45/17

mjanmohammad · 02-14-2018, 01:37 AM

Quote:

Originally Posted by BOND007_LTK

I noticed drop of about 1 l/100 which is about I bekieve 2-3 mpg after I installed the drop in. Pretty sure I installed it right. Spent a fair amount of time for full seal and proper box alignment.

Have winter tires vs summer tires and longer trips of highway. Will spray maf cleaner and reset ecu in the summer. Will lyk.

Holy necro bumping a 5 year old thread...

BOND007_LTK · 05-09-2018, 10:07 PM

Quote:

Originally Posted by BOND007_LTK

I noticed drop of about 1 l/100 which is about I bekieve 2-3 mpg after I installed the drop in. Pretty sure I installed it right. Spent a fair amount of time for full seal and proper box alignment.

Have winter tires vs summer tires and longer trips of highway. Will spray maf cleaner and reset ecu in the summer. Will lyk.

So that drop of 1 L/100 km was due to my winter tires because I put my summer back on and I'm getting around 7.7 L/100km average again which was when I have summer tires but not the K&N drop in filter..

IF there is any drop in mileage, it's negligible, maybe 0.3 L/100 km.

*At all times, I calculated mileage using the speed control at different speeds. Don't ask me what those numbers are, I deleted my stats by accident but I'm confident adding the K&N filter doesn't affect mileage much, if at all.

BOND007_LTK · 05-09-2018, 10:08 PM

Quote:

Originally Posted by Zentec

On my 17 86 I have an k&n drop in and nitrogen in tires I run 93octane gas and live in the desert. Crushing on the highway at 72mph I average 44+mpg now in the cool months.

I have found that with these 3 things I increased 9-13mpg depending on temps and driving style. In town I average 25mpg.

Side note I have tested this on wrx, Imprezas, b9 tribeca, and s2ks and have seen increases across the board and no decrease.

Wrong thread buddy. This is mileage with VS without K&N filter. That's the only factor that changes.

Lantanafrs2 · 05-09-2018, 11:13 PM

I wonder how many airboxes aren't sealed properly with "drop in" filters?

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02-13-2018, 11:30 PM	#29
Zentec Senior Member Join Date: May 2017 Drives: 2017 Toyota 86 Location: Las Vegas Nv Posts: 214 Thanks: 194 Thanked 78 Times in 63 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	On my 17 86 I have an k&n drop in and nitrogen in tires I run 93octane gas and live in the desert. Crushing on the highway at 72mph I average 44+mpg now in the cool months. I have found that with these 3 things I increased 9-13mpg depending on temps and driving style. In town I average 25mpg. Side note I have tested this on wrx, Imprezas, b9 tribeca, and s2ks and have seen increases across the board and no decrease.

05-09-2018, 11:13 PM	#36
Lantanafrs2 Senior Member Join Date: Jan 2018 Drives: 2013 frs red Location: South Florida Posts: 3,570 Thanks: 2,579 Thanked 3,132 Times in 1,684 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	I wonder how many airboxes aren't sealed properly with "drop in" filters?

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