K&N Air Filter installed, MPG dropping? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Ray_32 · 09-04-2013, 07:00 AM

I'm getting 11.3L/100km here but I do drive very spiritedly and live in a big city with VERY heavy traffic. Had a TRD air filter installed but not much difference in terms of fuel consumption.

StormTrooper · 09-04-2013, 11:12 AM

I didn't notice any change between filters....

Temp swings and or the use age of the ac and your right foot have large impacts.

I'm usually around 28-30 calculated or 32 on the readout.

TheseColorsDontRun · 09-04-2013, 11:30 AM

I have a Perrin drop-in and have noticed zero change in mpg. My dash readout has been pegged at 33.3 for the last few tanks, with the actual mpg being whatever is in my sig.

enwave · 09-04-2013, 12:04 PM

I run a K&N drop-in and Q300 catback. Mixed driving yields around 35mpg. 37 with heavier freeway driving.

http://i.imgur.com/pEXijEW.jpg

BRZerk · 09-05-2013, 03:07 PM

its all about driving habits. i was averaging ~30 mpgs before my exhaust went on. now its ~25...... lol

TONYpepperon1 · 09-05-2013, 03:15 PM

Quote:

Originally Posted by BRZerk

its all about driving habits. i was averaging ~30 mpgs before my exhaust went on. now its ~25...... lol

Ahhhhh! Don't tell me that! I'm at 30 mpg now and my catback is en route.

cfusionpm · 09-05-2013, 03:48 PM

Quote:

Originally Posted by TONYpepperon1

Ahhhhh! Don't tell me that! I'm at 30 mpg now and my catback is en route.

It's not that it will directly affect MPG, you'll just want to put your foot down more often. :P

Spartan65 · 09-05-2013, 04:28 PM

Quote:

Originally Posted by enwave

I run a K&N drop-in and Q300 catback. Mixed driving yields around 35mpg. 37 with heavier freeway driving.

http://i.imgur.com/pEXijEW.jpg

What application is that?

enwave · 09-05-2013, 06:16 PM

Quote:

Originally Posted by Spartan65

What application is that?

I'm in the private beta for Automatic, found at Automatic.com. It's been great so far, but no support for really detailed info out of the OBD port. Definitely for general consumer use.

Spartan65 · 09-06-2013, 12:53 AM

Quote:

Originally Posted by enwave

I'm in the private beta for Automatic, found at Automatic.com. It's been great so far, but no support for really detailed info out of the OBD port. Definitely for general consumer use.

That app looks like it might call the police if you get freaky in the car on the road.

rikdrt1 · 09-06-2013, 01:16 AM

Quote:

Originally Posted by TONYpepperon1

Ahhhhh! Don't tell me that! I'm at 30 mpg now and my catback is en route.

I don't think that's all true - must be other factors.
my catback didn't change a thing - I was getting 35-40 on the stock tires.
when I changed the tires/rims - then that will mess sht up bit time. just saying.

BRZerk · 09-06-2013, 10:48 AM

Quote:

Originally Posted by rikdrt1

I don't think that's all true - must be other factors.
my catback didn't change a thing - I was getting 35-40 on the stock tires.
when I changed the tires/rims - then that will mess sht up bit time. just saying.

i was saying my mpgs went down because my foot was also going down. hard.

...lol

enwave · 09-06-2013, 10:50 AM

Quote:

Originally Posted by Spartan65

That app looks like it might call the police if you get freaky in the car on the road.

Only in the event of an accident. Things like spinning out, etc. are not reported. But if I plan on tracking or being a little crazy, I can always unplug the device from the OBD port temporarily and all is well.

Luckily I tend to not do anything stupid in the street.

BOND007_LTK · 02-13-2018, 10:11 PM

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.

09-04-2013, 11:30 AM	#17
TheseColorsDontRun Keep calm and drive on Join Date: Sep 2012 Drives: 2013 WRB BRZ Limited 6M Location: Mt. Airy, MD Posts: 404 Thanks: 56 Thanked 169 Times in 119 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	I have a Perrin drop-in and have noticed zero change in mpg. My dash readout has been pegged at 33.3 for the last few tanks, with the actual mpg being whatever is in my sig. __________________ Build thread Last edited by TheseColorsDontRun; 09-04-2013 at 07:15 PM.

09-04-2013, 12:04 PM	#18
enwave That headunit though... Join Date: Jun 2013 Drives: 2013 Subaru BRZ Limited SSM Location: Provo, UT Posts: 520 Thanks: 304 Thanked 297 Times in 185 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	I run a K&N drop-in and Q300 catback. Mixed driving yields around 35mpg. 37 with heavier freeway driving. http://i.imgur.com/pEXijEW.jpg __________________ 2013 BRZ Limited SSM 6AT Phantom ESC 1.5Dump + E85 + OFH + Q300 Eibach Pro-Kit + Michelin PSS (stock size)

09-05-2013, 03:07 PM	#19
BRZerk Some guy in a white car Join Date: Jan 2013 Drives: 2013 SWP BRZ Limited Location: Oakmont, PA Posts: 393 Thanks: 70 Thanked 79 Times in 56 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	its all about driving habits. i was averaging ~30 mpgs before my exhaust went on. now its ~25...... lol __________________ 2013 Subaru BRZ Limited 6MT - Satin White Pearl

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09-04-2013, 07:00 AM	#15
Ray_32 Member Join Date: Aug 2013 Drives: '12 Toyota 86 (RED) MT Location: Malaysia Posts: 74 Thanks: 9 Thanked 36 Times in 16 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I'm getting 11.3L/100km here but I do drive very spiritedly and live in a big city with VERY heavy traffic. Had a TRD air filter installed but not much difference in terms of fuel consumption.

02-13-2018, 10:11 PM	#28
BOND007_LTK Member Join Date: Aug 2017 Drives: 2013 brz Location: toronto Posts: 68 Thanks: 0 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	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.

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