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Discussion Starter · #1 ·
So, I think I am just looking for confirmation, but I am going to ask anyhow.

I just got my 2013 Cruze LTZ auto a few weeks ago, has approximately 700 miles on it at this point. My mileage has been horrendous about half highway driving right around 60-65 mph and half driving around town, but no stop and go traffic jams or anything. I have hit right around 25mpg for the first 2.5 tanks of fuel. That doesn't even equal what my 2011 Scion TC auto was doing (26-27mpg).

I hope it's something that will improve as the car gets "broken in" a bit? I bought the car expecting to be in the 30+ range, since I had a 2003 Corrolla manual transmission that got me close to 35 in similar driving. I believe they both had similar EPA ratings.

Thanks for the help guys.
 

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I've lived in Amherst and driven all around the Buffalo region. Most of the traffic there is stop and go, and when it's not stopped it's speeding. 65 mph is about the slowest one wants to go even on the 290 or the 90. And don't get me started on how many moronic traffic lights there are on Transit or Niagara Falls.

Also, we just went through some very cold weather, and your car is brand-new. Given the traffic, the weather, and a new car, 25 mpg is typical. Give it a few thousand miles to break in and warm up. Your fuel mileage should come up into the low 30's by springtime.
 
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Also don't forget the "Winter Blend" gasoline. I am watching my MPG take a nosedive also with the cold and Winter Blend. I was up closer to 30 now I am hoping for 28. I have 32000 on car so it is broken in! I have told myself if you closely monitor the instant MPG, it will drive you "Crazy" There are ups and downs. That is why it is called an Average. As long as your car is not "drinking" gas, I would not worry about it.
 

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I actually avoid NFB like the plague... I live right near it too. And I drive 290 almost everyday, it's weird for weeks traffic will move at 65+ and then the State Troopers are everywhere and traffic barely moves 60 for a few weeks.

The "winter blend" is something I had never heard of until reading a few of these threads.
 

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Colder outside temps really hurt MPG, it takes more than twice as long for the engine/cat to reach operating temp. When cold all engines run rich & burn allot more gas. Are you idling the car to warm it? doesn't matter if its in your driveway or in stop & go traffic the effect is the same.... bad MPG. From the extra idling I do in the winter & longer warm up times I have lost 4-8MPG from my summer averages.

Most have noticed an increase in MPG once the motor/car gets 4,500-8,000miles.
 

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Yes, give it time, it will improve. Mine steadily increased the entire time over the first 1100 miles before it somewhat leveled off. I've pretty much sat on a plateau since (unless I take a highway trip), but even though the engine is breaking in, the temps fell at the same time. It should be interesting to see what the same drive will bring in the spring/summer. Currently have almost 5200 miles on it.
 

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I actually avoid NFB like the plague... I live right near it too. And I drive 290 almost everyday, it's weird for weeks traffic will move at 65+ and then the State Troopers are everywhere and traffic barely moves 60 for a few weeks.

The "winter blend" is something I had never heard of until reading a few of these threads.
LOL, the worst part of the 290 is where it dumps into the 90. 3 lanes into 1, and traffic is backed up well past Main during rush hour. I don't know why they haven't changed that since it's the dumbest design possible. It's amazing that there are so few accidents there...

Yep, the gasoline blend changes every fall and spring. They want more volatiles in winter gas to help it start more easily in the cold, and less volatiles in the summer so they don't make smog. The winter blend does reduce fuel economy a bit.
 

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LOL, the worst part of the 290 is where it dumps into the 90. 3 lanes into 1, and traffic is backed up well past Main during rush hour. I don't know why they haven't changed that since it's the dumbest design possible. It's amazing that there are so few accidents there...

Yep, the gasoline blend changes every fall and spring. They want more volatiles in winter gas to help it start more easily in the cold, and less volatiles in the summer so they don't make smog. The winter blend does reduce fuel economy a bit.
This country really needs to hire some transportation engineers from Germany or Austria or something. Their roadways are just fantastic.

I think the VDOT engineers here must come up with their ideas for road "improvements" when drinking moonshine.

Your mileage will definitely get better in a few thousand miles, and once the transmission learns your driving habits.
 

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Winter ! I am just triing to keep the car clean . With all the road salt used today it has become a choir around here to keep the different types of calcium build up off of the body and under carriage I did prep the car before the winter season
 

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Winter ! I am just triing to keep the car clean . With all the road salt used today it has become a choir around here to keep the different types of calcium build up off of the body and under carriage I did prep the car before the winter season
I don't even bother to wash my car in the winter, as soon as I do it will snow again or warm up & spray the sides with salt water while driving. Think my first wash this year will be about march 15th. Has rained every month at least once, so I have seen the paint a few times peaking out from under the salt build up.

By the time it starts to rust I will be driving something else.
 

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Well bro I kept a 1997 rodeo in pristine condition for 12 years I can do the same thing with this car .
besides it gives me some thing to do with my spare time .
 

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Mine initially was getting around 30 but after tune I'm getting about 34. I don't see half the miledge others do, but then again most of them are Eco models or in some cases LTs - Maybe the weight of the LTZs? Who knows.... but I'd be super happy with 35.
 

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IS it a winter blend in Florida ?
 

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Update every thing
 

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First, as others have said your mileage will improve as the engine breaks in. My ECO took over 5,000 miles to get going. While you're waiting, read the initial posts and first few responses of the two stickied threads in the Fuel Economy sub-forum. One is by XtremeRevolution and the other is mine. XR's talks about how to get better fuel economy and mine talks about winter impacts on fuel economy.

And yes, Florida has a winter blend.
 

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1. Wash it, debris on mine Does drag it down a lot.
2. Get the app for ur smartphone & stay off the boost(or get a vac/boost gauge)
3. After some 6-10k mi it will improve, mine went up about 6mpg
4. Increase tire # check for center wear issues & lower accordingly.
5. I suggest 87 oct fuuel, for me any higher is a waste.
6. Use synthetic oil.
7. Learn where the car does the best. Tedious I know but rewarding.

Gluck
 

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5. I suggest 87 oct fuuel, for me any higher is a waste.
The engine will run on 87octane, but the computer de-tunes making less power. On the steep grade hills around here driving my automatic that's the difference between the motor downshifting to 5th on 87octane & staying in 6th with 91-93octane. Most see 2-4mpg better averages with premium.

Allot of gas stations premium also contains no ethanol which means more energy per gallon. Pure gas 114,000BTU, 10% ethanol 112,500BTU. More energy per gallon = higher MPG without even changing your driving habits.
 

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More ethanol = less knock though. There is SOME benefit to it.
This is true, even with 91octane I was getting some knock when going from no/low load to medium/high load in the 1700-2200rpm range. Switched to 93octane with 10% ethanol and have not heard anything since.
 
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