mileage

[new@zoom]

first tank...22.4mpg
fuel light came on with ~~3.5 gallons left in tank

[Igodeep]

That's good for a first tank. It takes about 7,000 to 12,000 miles (depending on how you drive and altitude) to break in the MZR DISI engine. I avg about 17-19 mpg, but it's getting better with every fill up. The nice thing is that it's only a 16.5 gallon tank and I've never spent more than $45 to fill it using 91 octane or better.

[billybklyn]

New CX-7 owner, do we HAVE to put in the 93 octane or can we fwt away with 89 ??

[CXRabbit]

Yes, you HAVE TO put in 91 or better octane (I personally always stick with 93). DO NOT put 89 or 87 in the car. Turbo engine requires 91 or better.

[billybklyn]

Thanks rabbit... just checking 91 or better it will be.

[AWmustang]

That's good for a first tank. It takes about 7,000 to 12,000 miles (depending on how you drive and altitude) to break in the MZR DISI engine. I avg about 17-19 mpg, but it's getting better with every fill up. The nice thing is that it's only a 16.5 gallon tank and I've never spent more than $45 to fill it using 91 octane or better.

Mine has an 18.2 gallon tank.

[Spyderman955i]

15-16 mpg pretty consistantly, but I drive like an idiot....

[Spyderman955i]

With the A/C on... About the price of premium gas. Just calculate what the difference is (About $.10-$.20 per gal.) over the price of a fill up and it is usually less than the price of a car wash. Well worth it in a car like this. The poor performace of the cheap stuff is not worth the savings. And if you didn't enjoy performance, you wouldn't have bought this car!

[Raider]

We get 22 to 25.5 MPG with 93 octane in our FWD CX-7. And that is after all the mods were installed. 19,000 miles since last July, too!

[Spyderman955i]

Also, we live at altitude, where turbo motors are far less efficent than at sea level. Anyone who lives in the mountain states feel free to chime in with your MPG experiences.

[erhayes]

My CX7-T FWD yielded 21.24, 21.69 & 20.95 mpg on the 3d-6th full tanks. I have seen no appreciable difference after the first 700 miles. My driving consists of Suburban S & G and some 1 mile runs at 45 mph + a 10 mile highway cruise at 70mph for each full tank. AC on 80% here in Florida. I'm happy and my results agree quite well with the EPA rating as it has done with my last three vehicles. I have noticed that my throttle tip-in from idle is quit sensitive and took some getting used to in-order to achieve a smooth acceleration. This just off idle issue seems to be a problem for some drivers who report very poor mileage regardless of how easy they think they drive. In addition; I've seen absolutly no difference in mileage between 91 & 93 octane. I now use only 91 when availiable. Good driving to all. Ed

[j007w]

I have had 2 fill-ups so far since I bought my 2007 Sport couple weeks ago. Both times I had exactly 22mpg and I can't be happier. When I read that I could be seeing 14 or so mpg I was horrified (originally wanted to buy a Prius) since my previous vehicle, Ram 1500, did no better. Would installing the TCMP, BOV, etc. help in mileage as well as performance? Thanks

[mikomi]

i was seeing 12mpg at first. Haha. But I was super lead footed. Now with a lot of willpower and self-restraint, I am at 22mpg.

[brakeheart]

My Zoom Zoom with 3500 miles on it gets 15 to 16 mpg. Even when I drive it Good.. I have climate control, would it help to turn it off, & if so how would I make it like a regular heater etc?? & not activate the ac??

[gpd323]

14 to 17 MPG only. One long trip to Portland and we got 19 mpg. That was easy freeway.

I don't know how the hell you are getting over 20 mpg. Maybe its the AWD system causing some losses on my 7? But, its an on demand AWD.

Here is maybe why the AWD possibly get less mileage. The rear driveshaft and differential are always turning. So there is some drivetrain losses from that. Its not until some front wheel spin is detected that the clutch packs in the ITCC diferential come into play. But I think part of our horrible mileage is the rear diff is always under power (being driven, not actually driving the rear wheels), regardless of whether the rear diff is actually driving the rear wheels.

Most automatic cars coast well, and going down hills you usually have to apply the brakes some to keep the speed from going up. The AWD 7 seems to have this resistance (which I like BTW) so it does not speed up going down hills. Maybe thats part of the AWD system and causing some of the mileage loss?

Mileage has not improved over time. It still sucks.

[MAZOOM]

It's not on demand, its completely Active and is always on.
It does not have to detect silppage to work.

[gpd323]

Well, yes it is kind of. The ITCC rear diff is always driven by the rear driveshaft. Its always spinning, so that causes some drivetrain friction. But the actual connection between the rear diff and axles are open and not connected till the systen detects a spinnig wheel and loss of traction

The rear axles are open untill the front wheels loose traction and then the rears come into play and can be powered one side ot the other, or both, or direct 50-50 front to rear as needed.

Read this about the rear ITCC diff.

http://www.jtekt.co.jp/products/drive/pdf/torsen2003.pdf

[Raider]

Our mileage went up with the CAI and TMIC upgrades. Perhaps the engine breathing better makes it more efficient, more power, better mileage? I am not sure.

[MAZOOM]

It does not operate like a Torsen, this system is Haldex like and is FordMoCo Developed.
http://i18.tinypic.com/6p89mxd.png
http://i7.tinypic.com/86y7f43.png
http://i16.tinypic.com/8by0x1i.png
And yes I know this is from the MS6, the AWD systems are one in the same.

[gpd323]

Our mileage went up with the CAI and TMIC upgrades. Perhaps the engine breathing better makes it more efficient, more power, better mileage? I am not sure.

That seems very possible. Open the intake, better flow thru the IC (less airflow restriction), open up the exhaust and improvements should follow in mileage.

I hesitate to mod the 7. But I have found the boost solenoid and I'll tap in a boost gauge to see whats really going on. I suspect the boost is limited in certain conditions and I bet its tapered off at higher RPM's? So, I'll tap in the gauge, and then bypass the ECU boost solenoid with a Greddy ProFec B and try to keep the boost at whatever max it did stock. 14 psi or so? If it hits fuel/boost cut, I can drop it down a bit. I have the CAN protocol scanner to see the MIL's.

[gpd323]

And yes I know this is from the MS6, the AWD systems are one in the same.

Yes the AWD systems are the same, but the 7 has a completely different program. The 7 has no rear diff cooler either, or different PTO selections. Its a dumb unit until the fronts slip.

It does however work with TC and stabilty control if you whip it around alot.

But merrily driving down the road, the rear diff is just along for the ride. And to me causing some additonal drivetrain loss in the process.

[MAZOOM]

There is a power control unit for the rear diff, so there is no drivetrain loss.

EDIT: It does not need to slip for power to be diverted to the rear, you can floor it and power will be diverted to the rear, if you are in the dry and to floor it through maybe a puddle in 1ST the system will send power to the rear and slam on the brakes.

[gpd323]

There is a power control unit for the rear diff, so there is no drivetrain loss.

What I mean about DT loss, is the rear diff is always spinning and causing friction. IE: less gas mileage. I don't mean its not operating.

DT loss= differential friction.

[MAZOOM]

Oh well whatever, my point is that it operates nothing like a torsen and is always on it's
a continuously variable full-time AWD drive system, not a Torsen, which ONLY operates when the front wheels slip, which is why the RAV4 still has torque steer problems, unlike the CX-7 AWD.

[gpd323]

FYI= Torsen made the rear ITCC for the 7 and Speed6. Yes it a Torsen, but no, its not the mechanical version.

The ITCC is also on many Volvo's, Fords and etc..

Cheers, and beer me!

[Mitman]

I just bought a new 07. I'm only getting about 18.5 mpg on the hwy. I was really hoping for at least 20. Does it improve?

[warrusty]

2008 GT FWD, getting around 20mpg with 80% highway 20% city. Pleasantly surprised (much better than my RX-8!)

[AWmustang]

It get 15 mpg winter, 17 summer.

Maxed out on a roadtrip once at 21mpg.

[Dutch]

New 2008 GT about 1100 miles ... two tanks (not including the dealers tank).

First tank about 50/50 (city/hw) with 20.6 mpg.

Second tank 30/70 (city/hw) with 21.7 mpg.

Since most of these miles were during the break-in period, we drove more conservatively. I expect the mpg would improve if I continued to drive the same way, but there isnt a chance in hell of that! I cant wait to REALLY drive my CX-7. :cool:

[shadow1]

Best I have seen with 80% highway (not winter time) was 20 mpg. Now with mixed driving in the winter, I only see 17-18 mpg.

[liviu.gheorghe]

When you calculate your milage, what type of gallons are used - US or Imperial?

[mikomi]

We use US gallons.

[liviu.gheorghe]

I see 12 mpg in the city. It has only 2500 miles and I hope I will see an improvement in time.

[MAZOOM]

Well that's no good, heavy foot? Even with mine I avg 15mpg, which isn't good but I like gasing it up, off the throttle VERY light driving at almost hiway speeds I got a whopping 22MPG, but that's not what I got the CX-7 for so I'm content with the 15MPG.

[liviu.gheorghe]

Well that's no good, heavy foot? Even with mine I avg 15mpg, which isn't good but I like gasing it up, off the throttle VERY light driving at almost hiway speeds I got a whopping 22MPG, but that's not what I got the CX-7 for so I'm content with the 15MPG.

I went to the dealer and he said it will get better after 5000 miles. Hope he is right.
On the other hand things are not so bad because I'm not paying for the gas - the company I work for is. :)

[HaynIlandboi808]

I get around 23mpg. I can go about 430miles on a full tank before my yellow light comes on. I don't have ne mods to my engine all stock..

[MAZOOM]

FWD though right?

[Crash]

I get around 23mpg. I can go about 430miles on a full tank before my yellow light comes on. I don't have ne mods to my engine all stock..

Miles or KM's? I'm getting 450km's to a tank; then the yellow light comes on...Miles to KM's means that you're getting 688 to a tank; if correct, I'd LOVE to know what you're doing!!!

My calculations put me at 13 litres per 100kms. I travel about 70% highway.

As I'm new to the CX7 I've been monitoring driving habits and fuel consumption. My "informal" studies have found that:
110km's per hour = 450 km's to a tank (babying it on the highway / city).
130 km's per hour = 450 km's to a tank (for this, I beat the hell out of it).

Moral of the story is that I can have a lot more fun with zero consequence!

The only "mod" I've done is to add a K&N filter.

[HaynIlandboi808]

Miles or KM's? I'm getting 450km's to a tank; then the yellow light comes on...Miles to KM's means that you're getting 688 to a tank; if correct, I'd LOVE to know what you're doing!!!

My calculations put me at 13 litres per 100kms. I travel about 70% highway.

As I'm new to the CX7 I've been monitoring driving habits and fuel consumption. My "informal" studies have found that:
110km's per hour = 450 km's to a tank (babying it on the highway / city).
130 km's per hour = 450 km's to a tank (for this, I beat the hell out of it).

Moral of the story is that I can have a lot more fun with zero consequence!

The only "mod" I've done is to add a K&N filter.

Its Miles... yeah i wish i was getting 688miles per tank hehehe..
and yeah its FWD.

[Crash]

did you just simply turn off the turbo? What's your secret?

[MAZOOM]

You can turn off the turbo by staying under 2000RPM's, I achieved 22mpg that way but never again, It was SO boring.
Manual mode too.

[HaynIlandboi808]

did you just simply turn off the turbo? What's your secret?

I keep my light foot on tha pedal now..haha..now that the premium gas here is 3.99/gal. so i fill up on super tuesdays and fridays to get the 6cents off/gal.

[MAZOOM]

Wow, it's only 3.39 here.

[Shaz]

Just filled up mine tonight at Speedway @ 3.58/gal of Premium fuel. Costs me $53.71 for 15 gals. Good thing I have a coupon for 10 cents/gal off.

[godelfin]

Just completed a roadtrip from Los Angeles to Sacramento this weekend. I kept refilling the tank when it would reach about 1/2 empty and I checked the mileage at each refueling. The first stretch I got an astonishing 25mpg... the remainder of the trip I average around 22mpg. My stock CX-7 is an AWD and I used 91 octane gasoline. I am still scratching my head about the 25mpg. The only explanation I can come up with is that I filled up the tank very early in the morning while it was still cold, right before a heatwave that drove temps up into triple digits this weekend. Maybe if it had been cooler I would have kept a consistent 25mpg, but who knows. I was using cruise control for about 98% of the trip, cruising the highway at an average 65 mph.

My 2007 CX-7 now has 12,500 miles on it, three weeks after I purchased it.

[shekshishekki]

I seem to be stuck around 19.5mpg on my new 08 cx7. Two fill ups so far and both have been 19.5. When i drive i try to keep the RPM under 2500. My friend says the MPG will improve as the car gets some more miles on it. Lets hope so...cuz premium in my area is at LEAST 3.99/gal and even those are becoming rare.

[Cue]

Took a trip from Calgary to Great falls for the long weekend, and got 22 MPG cruising at 70mph.... Love long driving with this car!!.... cept it was a 5 hour trip and by the afternoon, temps were soaring and car was driving like a little B&*@#.... When the intake temps are above 90, and boost temp is above 115, car performs in limp mode....

[Sorrento CX-7]

Converting Kilometers to Miles here... and with a 24,000 km (15,400 mles) old engine:

City milage, and living in a crazy filled with traffic city, 18.5 mpg, at an altitude of 2100 feet asl.

Highway 21 mpg, driving at 81 mph with cruise control but at an altitude of 7545 feet asl (driving from Zacatecas to Saltillo), which of course hurt milage a lot; at sea level I think I could reach higher numbers easily.

The older the engine the better milage... up to a certain point of course.

If only I could keep the rpm below 3,000... but what's the fun in that???? :D