V6 vs V8 MPG debate - Page 2 - Ford Mustang Forum
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Quote:
Originally Posted by rzoltek View Post
What's the big MPG debate between V6 vs V8?
From what I've read, the new 2011 V6 gets up to or around 30 mpg highway and around 20 city. Let's say 25 mpg average for the V6.
For the purpose of this comparison, we'll use 20 mpg average for the V8 GT- 15 mpg stomping between stoplights, 25 on cruise control on the highway.
I drive about 18,000 miles per year or 1,500 per month, between my work commute and pleasure.
I'll figure gas at $2.90 per gallon for this comparison.
The difference between the V6 "bonus" and the V8 "penalty" is only $522.00 per year (that is just ten bucks per week!).
And for guys that drive lots less miles, the difference is less.
I'll drive the SUV camping (it gets 18 mpg average) and I'll drive the four wheel drive in our Chicago winters.
As far as the $5,000.00 purchase price difference, Edmunds and Kelley Blue Book prove it comes back at resale.
And as far as insurance goes, "mature" good drivers don't pay much more for GT vs V6. I got a quote for a full year at only $600 with 250/500 limits (includes multi vehicle and homeowners policy discounts).
So there doesn't seem to be much reason to "skimp" on the V6.
Your insurance numbers are not realistic for the average driver, but yes, for some of us (and I'm one of them) they could be. I still don't see how the V6 is "skimping". I drive on the most congested roadways in America day in and day out. I can barely find room to tap into my 305hp. The GT, which I did drive, is awesome. But, honestly, where I live it's useless.

And there is absolutely no resale data on the 3.7L Mustang V6 generation of vehicles. You are assuming they will retain residual value at the same clip as older models but there is no way to know that at this point. It's just as possible that the 5.0 Coyote engined vehicle will lose more residual value if fuel costs creep back above $4. You may not be concerned with the cost of gas, but look at what $4 gas did to the value of used SUVs. The consumer market in general is very aware of this cost difference.

So...people...buy the Mustang you want, for whatever reason you want, and just enjoy it.

FYI...I get around 22 in heavy stop and go commuting (more stop than go) and probably a combined 25ish when in mixed driving.

Have a great day everyone.


2011 V6 Premium Convertible. Pony Package, 6AT, Red Candy Metallic, Black Top, Stone Leather.
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I've got 500 miles on my manual 5.0 with 3.73 and I'm averaging 15.3.


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Buying a v6 is not skimping, they are cheaper and make more sense to some people. Not everyone craves to drive a 400 HP v8 and that's not why they bought the Mustang. The first Mustangs were a far cry from a performance/muscle car. Some people just like they way they look and others don't even know a GT exists.

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Totally agree with Rowdy. And kick that 25 mpg out the window. My last 3 tanks I am averaging 32.4 mpg with the last tank going 33.8. That's V6 mileage so let's kick this topic to the side of the road.

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post #20 of 26 (permalink) Old 07-08-2010 Thread Starter
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Hi Old Shadow,
What kind of driving do you mostly do, to obtain that 32.4 mpg?
You must do mostly highway cruising to get that.
What about other guys, V6 or GT.
What average mpg are your 2011's getting?
And what octane are you using?
MPG isn't the only criteria for choosing between V6 at V8, but if the difference in terms of daily $$ is very narrow, it shouldn't factor into the decision. I'm being devil's advocate because I'm making this decision myself right now!
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Quote:
Originally Posted by Ebony5.0 View Post
I'm a member of the "drive it like you stole it" break-in camp and have let it out a couple of times. Still, for normal driving, I upshift between 3700 and 4500 rpm. While that's not babying the car, it's not exactly flogging it. If I'm getting 10 mph at that shift point, I don't think the fault is entirely my own. I will say that some posters on another forum told me that their cars mileage increased dramatically from 500 to 1000 miles and that their cars had significantly worse mileage early in the cars' life. We'll see.
3700-4500 RPM!?!?!? So pretty much your the fastest person to the next stop light. I'd love to see you drive. I didn't know 10mpg was possible in any of the S197 cars. I average 20+mpg with my GT and I get on it occasionally. If your seriously getting 10mpg you might want to check and see what kind of trail your leaving behind... I'm guessing theres a fat trail of gasoline. Hope no one lights a match when your around!

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Shifting in the 3700 to 4500 rpm range is hardly getting on a car that has a 7000 rpm redline and doesn't hit peak torque until 3500. What's the point of having 412 ponys and 395 lb feet if you don't use them?

BTW, my impressions of the 2011 is that the torque/power curve is radically different from that of earlier mustangs, which hit peak torque much earlier in the rev range. The 2011 drives alot more like a high-end European or Japanese sports car.

Just an opinion.
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Quote:
Originally Posted by Ebony5.0 View Post
Shifting in the 3700 to 4500 rpm range is hardly getting on a car that has a 7000 rpm redline and doesn't hit peak torque until 3500. What's the point of having 412 ponys and 395 lb feet if you don't use them?

BTW, my impressions of the 2011 is that the torque/power curve is radically different from that of earlier mustangs, which hit peak torque much earlier in the rev range. The 2011 drives alot more like a high-end European or Japanese sports car.

Just an opinion.
Ponies come from Gasoline. Producing 400 HP can easy gulp down over 30 gallons an hour. If you use them expect to pay. Nothing unusual there. The magic comes from having 412 ponies available and yet remaining efficient enough to not needing many of them for overcoming the overhead of having them.

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Quote:
Originally Posted by Ebony5.0 View Post
Shifting in the 3700 to 4500 rpm range is hardly getting on a car that has a 7000 rpm redline and doesn't hit peak torque until 3500. What's the point of having 412 ponys and 395 lb feet if you don't use them?

BTW, my impressions of the 2011 is that the torque/power curve is radically different from that of earlier mustangs, which hit peak torque much earlier in the rev range. The 2011 drives alot more like a high-end European or Japanese sports car.

Just an opinion.

I used to drive a 1996 Integra and a 2000 Honda SI (all 5sp manual ) and now with my 2011 Mustang 5.0 6spd manual it feels very much like my previous cars (but more powerful of course). In my Integra I up-shift at 3500rpm and in my SI at 2500rpm (redline on both cars is 7500rpm). Right now, I'm still getting used to down shifting from 6 to 5 because it so easy to go to 3 by mistake.

With my 2011 Mustang 5.0, I upshift at 3000rpm in city driving and 3000-3500rpm on the freeway. I've had the car for only a week and it has only 400 miles and averages 16mpg.


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2011 Mustang 5.0, 6spd manual, Sterling Gray Metallic, 401A spec,
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Quote:
Originally Posted by Ebony5.0 View Post
Shifting in the 3700 to 4500 rpm range is hardly getting on a car that has a 7000 rpm redline and doesn't hit peak torque until 3500. What's the point of having 412 ponys and 395 lb feet if you don't use them?

BTW, my impressions of the 2011 is that the torque/power curve is radically different from that of earlier mustangs, which hit peak torque much earlier in the rev range. The 2011 drives alot more like a high-end European or Japanese sports car.

Just an opinion.
Either way, 3700 to 4500 rpms, is still 3700 to 4500 RPM's lol. You're not going to get good gas mileage shifting in that range. I understand the whole thing of "whats the point of the power if you dont use it," but its kinda pointless to use it nonstop.

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Quote:
Originally Posted by rzoltek View Post
Hi Old Shadow,
What kind of driving do you mostly do, to obtain that 32.4 mpg?
You must do mostly highway cruising to get that.
What about other guys, V6 or GT.
What average mpg are your 2011's getting?
And what octane are you using?
MPG isn't the only criteria for choosing between V6 at V8, but if the difference in terms of daily $$ is very narrow, it shouldn't factor into the decision. I'm being devil's advocate because I'm making this decision myself right now!

ya same how did you get that? You must have the 2.73 gears correct?

I'm using 87 octange in my V6 (3.31) and best saw 26MPG straight hwy driving for 3 hours.

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