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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications Horrible MPG
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      06-22-2019, 02:20 PM   #1
CC424
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Horrible MPG

Just like the title says....I'm experiencing horrible gas mileage since I switched over to MHD Stage 2 93 OCT. Average MPG say 14.5. I have a vrsf downpipe, chargepipe, bms air filter, and Magnaflow axle backs. Is this normal?
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      06-22-2019, 02:27 PM   #2
ezaircon4jc
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Originally Posted by CC424 View Post
Just like the title says....I'm experiencing horrible gas mileage since I switched over to MHD Stage 2 93 OCT. Average MPG say 14.5. I have a vrsf downpipe, chargepipe, bms air filter, and Magnaflow axle backs. Is this normal?
More fuel delivery = fewer miles per gallon.
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      06-22-2019, 02:34 PM   #3
CC424
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Understand that....anyway to change it with the tune? Not even driving in sport. Love to have comfort like normal and sport more aggressive.
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      06-22-2019, 05:06 PM   #4
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Cant have best of both worlds.
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      06-24-2019, 10:49 AM   #5
etnsandman
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It really is all in how you drive it. I commute and my average is around 19 mpg on stage 2 93 octane and a little lower on the e30 map.
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      06-24-2019, 06:53 PM   #6
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Quote:
Originally Posted by ziekxq View Post
Cant have best of both worlds.
Yes, you can. Its called diesel.

I have a 330hp/525lb-ft e90 which gets 29mpg around town, and will do 0-60 in the under 5 second range. My 550ix is a guzzler compared to the D, and performance is better, but not a lot better. Especially since the 550i takes some time to spool. My 550ix driving probably more conservatively averages about 15mpg.. My X5M is 13 mpg. So yeah you can have performance and economy just not a gas engine.
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      06-24-2019, 08:00 PM   #7
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Quote:
Originally Posted by Thecastle View Post
Yes, you can. Its called diesel.

I have a 330hp/525lb-ft e90 which gets 29mpg around town, and will do 0-60 in the under 5 second range. My 550ix is a guzzler compared to the D, and performance is better, but not a lot better. Especially since the 550i takes some time to spool. My 550ix driving probably more conservatively averages about 15mpg.. My X5M is 13 mpg. So yeah you can have performance and economy just not a gas engine.
Where did diesel came in this conversation? But okay thanks for giving your input.

Maybe my post sounded generic to all cars than towards his car and setup.
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      06-25-2019, 05:24 AM   #8
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Originally Posted by etnsandman View Post
It really is all in how you drive it. I commute and my average is around 19 mpg on stage 2 93 octane and a little lower on the e30 map.
True statement. Took the car on a short road trip to Oklahoma and on the highway if I gassed it then coasted, I got 21 mpg. I just have to change the way I drive normally.
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      06-25-2019, 09:33 AM   #9
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I'm using map 5 on my car just a muffler delete and K&N Cone, in the city i still get 18 mpg if I drive normal... hwy is 27-28mpg
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