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This is normal for me most of the time, unless I use the AC or am in like stop and go traffic. Or if I'm just beating on her hard for the entire tank, then I'll get 190 or so. This is also on Ethanol free gas. Engine has.. 21k on it.
Just for reference..
Wow that's pretty good. I get 190-210 at the 1/4 tank mark pretty consistently.
I get about 18 mpg with my stock 2011 R3 around town. I redline at least once per day and generally shift about 5-6K. I owned a 2005 with aftermarket cold air intake that gave me trouble with the mass airflow sensor. I switched back to factory and it ran great, but I got slightly less mpg than the 2011.
Make sure you open it up now and then. More ports open with higher RPMs. Also there are components (some pulling vacuum) that only operate under high load. I'm sure you can find more detail on this forum than I can give you. Good luck! And most important. Enjoy driving the car. You didn't buy it for the mpg, I hope.
Last edited by ironhacker; 06-23-2016 at 09:34 AM.
That's still not normal.
I drive very 'enthusiastically', fast starts, hard stops, downshifting constantly, high speeds at high revs and I average 14-15 mpg.
BigCajun is right - if your ignition system (colids, plugs, wires, ECM reset) including the air inlet (clean filter, MAF sensor cleaned with MAF cleaner only) is in well maintained condition, your average mpg (city/hwy combined) should be about 15mpg.
While I would like to get better gas mileage, I'm mostly concerned about it because to the best of my knowledge it can be a warning sign for bigger problems.
Don't want to jack this thread but I have a quick question. Seems like the K&N intake is unpopular here. Would a K&N filter in the stock air box be ok?
Don't want to jack this thread but I have a quick question. Seems like the K&N intake is unpopular here. Would a K&N filter in the stock air box be ok?
Yes, the paper OEM style filter is fine.
It's the K&N intake that disrupts the MAF sensor.
Don't want to jack this thread but I have a quick question. Seems like the K&N intake is unpopular here. Would a K&N filter in the stock air box be ok?
Yeah it's fine. On par with OEM. OEM may filter better for the same flow.
On the subject of MPG, I recently had my all time best of 21.5mpg on a 3 hour long highway drive at 81mph sustained with 3 passengers. No altitude change. On BFG Rivals (don't ask).
Normal mixed cycle for me is 18.8mpg.
I'm also having my all time worst now communting through the city every day, 15mpg. I can't imagine worse circumstances than creeping red light to red light.
That 242mi on 2/3 of a tank is damn impressive
So 11mpg is "something wrong" territory in my book. Did the OP get rid of that K&N intake yet?
So 11mpg is "something wrong" territory in my book. Did the OP get rid of that K&N intake yet?
The AEM went on last week. Car is noticeably punchier, especially at lower RPMs. Runs smoother, too. I did the brake pedal dance to reset the memory and burned one tank of gas that I didn't count as the car re-learned the fuel trims and everything. Currently, I'm at half a tank and 104 miles (about half of that is highway). So, an improvement, but that still seems on the low side for me...
Final update from me: The car is now getting somewhere around 20mpg highway and 15-16 city, so I think it's safe to say that BigCajun was right and the K&N was messing with the MAF sensor. There are probably more things that I could refresh/tweak - I haven't been able to drop the cat yet (bolts were stuck and I didn't have the time to break them loose) - but I think that the K&N intake was the main culprit.
As far as things go in the acoustics department, the AEM does have a nice growl, but I do miss the awesome howl that the K&N had wide open around 7k RPM.
Good news - I've seen a fair bit of issues with dirt and dual sport motorcycles running K&N air filters. They somewhat work until the oil is clogged then let the dirt pass through. The pressure drop difference also plays a minor issue on carbureted bikes and idling. Better off paper filter replaced more often than a K&N filter any day.
I just bought a 2008 Series I, with the 6 speed MT. I expected not-so-great gas mileage, but I'm getting around 11.5 MPG... surely this can't be normal! I do like to redline the car about once or twice every time I drive it, but I'm not thrashing it everywhere I go. Also, this is mostly suburban driving, with some highway and city thrown in here and there.
The car has under 19k on it. I just replaced the plugs, coils and wires. No white or black buildup on the plugs; just the usual light brown. I also cleaned the MAF sensor and the air filter. It seems to idle ok - the revs sit at around 850 and there will be a very slight pop or drop in revs every half minute or so, but it runs pretty well otherwise. The cat doesn't glow after a hard drive. No CELs. Power seems fine and it starts hot and cold instantly.
Only mods worth mentioning here are a catback exhaust, and a K&N v2 air intake.
Any ideas?
I get the same lousy car mpg ...I didn't expect 20, but I am getting 165 miles out of a 15.9 gallon tank
I have replaced so many vacuum this and that and ecg equipment ...still no better mpg
I get the same lousy car mpg ...I didn't expect 20, but I am getting 165 miles out of a 15.9 gallon tank
I have replaced so many vacuum this and that and ecg equipment ...still no better mpg
If you can't be specific about what was replaced, it's hard for anyone to help you.
Did you replace the ignition coils?
Did you read this thread?
If it is idling fine (cold and hot), starts hot and cold well, no CEL codes active (check past ones), and you are able to run it up to 8500 rpms through all of the gears then you may need to: (1) replace your air filter, (2) clean your MAF with MAF specific cleaner, (3) reset your 'puter to have the car relearn fuel trims.
City gas mileage stinks nomatter what - here's my tracker of MPG vs. city driving extent. I replaced my plugs, wires, and coils (OEM C) at about 44K miles. I haven't reset the computer yet but have cleaned the MAF twice a year and added a new air filter once per year. Note how mileage is creeping down over time - I bet if I measured compression & CAT temps over time it would correlate well with cumulative (CUML) MPG.
Last edited by wannawankel; 12-22-2017 at 07:40 AM.
06-23-2016, 07:29 AM
