RS mileage

[Macehammer]

You're tuned though, right?

My work commute is ~ 8 miles one way. Probabl 40ish mph average plus traffic lights. That's what kills mine.

I'm running the Stock/Performance Select-a-tune. All my recent tanks have been grandma driving the Stock map.

Yeah that short of a commute is gonna kill you. Try as best as you can to keep the rpms as low as possible.

 

[RSTURBO]

Ive put about 800 miles on my RS 6M. Average so far has been 30MPH mostly city driving and on 91 octane and stock tune. But I do a lot of upper gear pulls when getting up to speed and still enjoying the new car. So you could say that rating is mostly "sport driving" around town

 

[Red_RS]

what's the difference between coasting in gear and coasting in neutral that you see?

Okay, Eric, what am I doing wrong(or does the RS not have the injector shutoff when coasting in gear, maybe?). I only got 34mpg on this tank which is worse than the week I drove 100% city. 80% of this tank was highway.

 

[Eric Smit]

Okay, Eric, what am I doing wrong(or does the RS not have the injector shutoff when coasting in gear, maybe?). I only got 34mpg on this tank which is worse than the week I drove 100% city. 80% of this tank was highway.

what was the weather like? what were your highway speeds?

 

[Red_RS]

Rain one day. Weather has been mild. I haven't run the a/c or rolled the windows down. I just ran the fan. Highway speeds were the same as always. 55 for about half of my commute 65 the rest of the way (to work). Stop and go about 2/3 if the way home which puts me back into the 55 MPH zone for the rest of the way(although it usually stays around 45mph. People get used to going 10mph and then 45 seems really fast, I guess). The DIC showed better numbers by coasting in gear, but the gas pump tells a different story. I will have to keep experimenting and see what yields the best results over time. :/

 

[Macehammer]

I think I just got 37-38mpg granny auto tranny 87 octane, check the mpg competition thread.

 

[Dirt55]

Man! After reading this thread I ran out to look at the window sticker (folded up in glove compartment) to see if it has 40 MPG. It doesn't, states 34 highway. Was hoping I could get a check too :sadbanana:

 

[Insanika]

The bonus is though, you CAN get close to 40 at least. I parked the car last night at 205 miles on the tank and the DIC said 39.5

 

[dkennedy1989]

I get about 32 in my RS without a tune and going 75 on the expressway.

Sent from my DROID RAZR using Tapatalk 2

 

[Insanika]

Mine's tuned, but in stock mode and on hilly highway 36 both ways. My average lately with summer gas has been about 34.

 

[Macehammer]

I've put about 150-200 miles on this current tank. I'm at like 38.9mpg.

That's driving in Performance Tune, no CC, around 65mpg on hilly roads, hilly highways, but mostly highway.

I'm coming to the conclusion that, as many have stated before, select-a-tune isn't really beneficial. Perf mode seems to be able to get just as good mpg as stock tune, and better than Eco tune, if you drive it right.

Maybe select-tune would be worth it for blue-pill - red pill. Since I am not there yet, maybe one of the Children of the Corn can say...

 

[Insanika]

Agreed, although I think it's been confirmed that the ECO tune for the 1.4 is really just the stock tune..

My first 125 miles were all above 40

 

[Macehammer]

The Eco tune and the Stock tune (I have had them both) did not perform the same for me, caveats to this are, the Eco was loaded on my select-a-tune in my initial tune file, the Stock loaded on my select-a-tune on my dialed in tune file.

That may be a difference.

I have had smart-octane on both tune files, so that is no different... my mileage has improved since dial in, but mpg on 87-91-93 is no different per map.

I'd be willing to say there are no economic benefits to running higher octane whatsoever. This is my experience, only. I enjoy driving on 93 more, and it has some added utility in traffic situations, but that's about it.

I have heard claims of working out 1-2 mpg higher on 93 compared to 87. I'm not seeing it, and I am convinced I have a pretty good benchmark to weigh it against, of course be speculative, your mileage may vary.

Nonetheless I can do 38mpg fairly easily. If you keep your throttle slow and steady, your speed legal, and you avoid traffic jams, you should be able to also.

 

[ShadowRS]

Hey, new to the forum. I just bought my Sonic last week, and my first tank was roughly 31 mpg for my average.... This one is now 36...... That's with about 80% highway.

Higher octane shouldn't have much of a big difference on these cars with a stock tune.

I get good mpg's by utilizing the strong gearing and short shifting a lot. Sure, you gotta shift a lot more often, but it's fun and you get good mpgs.

 

[KGB Pilot125]

got 7400 on my auto RS and have been averaging 30.254 according to my driver diary app on Shell 91.

Best has been 42 worst has been 26

only mod is a K&N air filter in stock box

 

[ShadowRS]

Since you have experience, do you think your K&N filter helps out at all?

 

[NR552]

Just took my first real road trip with my RS, San Diego to Vegas... 75 mph on cruise the entire way, netted 32.62 mpg (DIC display 34). Drove to the Hoover Dam and back, and the DIC was @ 40 until we hit city trafffic. The return home yesterday @ noon was pretty uneventful running the speed limit the entire way home (some bumper to bumper in Riverside and in San Diego)... the DIC displayed 42 mpg when we stopped in Baker, CA for some beef jerky. Final results at fillup, the DIC showed 38.8 mpg, it was 37.3 actual (2 clicks past first gas shut off). Very good gas mileage, considering the hill, headwinds, crosswinds, and bumper to bumper traffic.

:banana:

 

[rstheiner]

I've had my RS for about a week now. I've been getting 35mpg going 80mph on the freeway with the AC on. I could easily get more if I didn't have to follow traffic.

 

[klb1.8]

With my commute rather hilly high elevation driving i get about 32mpg but im not slow so thats probably why its lower

 

[radian]

35 MPG for city driving. Around 38 MPG for 25% highway driving. Actual mileage, calculated by comparing odometer reading and volume of fuel consumed. So far, quite impressed.