# 2015 Ford Escape - Why turbos?

**URL:** <https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315>\
**Category:** Maintenance/Repairs\
**Tags:** ford\
**Created:** [April 2, 2020, 2:00pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315 "2020-04-02T14:00:57Z")\
**Posts on this page:** 17\
**Page:** 2

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**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\
**Post date:** [April 13, 2020, 1:56pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/21 "2020-04-13T13:56:13Z")

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> [@oldtimer-11](#):
>
> The smaller turbo motors get better fuel economy on the EPA cycle, but people don’t drive like the EPA cycle.

The manufacturers do not care. Their goal is to meet the letter of the law and no more. And sometimes not even that if they think they can get away with it (lookin’ at you, VW).

As long as the law continues to allow for non-realworld testing to meet its standards, they will keep playing these games.

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**Author:** ![thegreendrag0n](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thegreendrag0n/32/9265_2.png) [@thegreendrag0n](https://community.cartalk.com/u/thegreendrag0n)\
**Post date:** [April 13, 2020, 2:02pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/22 "2020-04-13T14:02:37Z")

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> [@shadowfax](#):
>
> As long as the law continues to allow for non-realworld testing to meet its standards, they will keep playing these games.

Nobody will ever be happy with EPA figures.

For the test to be relevant, it has to be repeatable, so it has to be formal.  
You can always find whatever test procedure was used to be “artificial” to compare to “real world driving”.  
It will always be a driver who drives in “binary mode” with one of the pedals down the the ground, either gas of brake and another person taking eternity to accelerate.  
Both will find EPA figures artificial.

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**Author:** ![thegreendrag0n](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thegreendrag0n/32/9265_2.png) [@thegreendrag0n](https://community.cartalk.com/u/thegreendrag0n)\
**Post date:** [April 13, 2020, 2:55pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/23 "2020-04-13T14:55:44Z")

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dealing with my lemon Honda Accord (it is in litigation now, BTW), I was given two same model year CR-Vs as loaners - one with older 2.4L normally aspirated engine and one with 1.5 turbo.

I had quite an extensive “test drive”, as I logged almost 1500 miles on these

in the real-life driving, 1.5L turbo was beating 2.4L “classic” one on all accounts: it had better acceleration and better MPG, both in city and on highway and by a good margin

the only thing which annoyed me in 1.5 turbo was the distinct high-frequency mosquito buzz on the turbo, it was faint, but because of that probably even more annoying

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**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\
**Post date:** [April 13, 2020, 3:15pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/24 "2020-04-13T15:15:41Z")

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> [@thegreendrag0n](#):
>
> For the test to be relevant, it has to be repeatable, so it has to be formal.

Formal is fine, unrealistic is not. The top speed for highway mileage testing is 60mph. The top speed on many highways is 10 higher than that, and in some states it’s 20 higher.

Additionally, the cars are tested inside on a dyno, so wind resistance is not a factor. They’re tested without the AC running, which does not reflect real-world use.

Specifically regarding the turbos, they’re there to make the car accelerate faster, which encourages people to push the go-pedal harder. But that’s not how they’re tested, and the car makers know this, so they get a free mileage bump that isn’t reflected in the real world.

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**Author:** ![thegreendrag0n](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thegreendrag0n/32/9265_2.png) [@thegreendrag0n](https://community.cartalk.com/u/thegreendrag0n)\
**Post date:** [April 13, 2020, 3:19pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/25 "2020-04-13T15:19:46Z")

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On my last examples, I was able to get EPA numbers on both CR-Vs, highway miles were clocked on 65-75.  
On my [lemon] Accord Hybrid, I can easily get highway figure of 48MPG, but by no means can get to that EPA-promised 48 in city, 45-46 is the best I can clock, and yes, once AC is on, I can barely even get to 40 MPG

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [April 13, 2020, 3:20pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/26 "2020-04-13T15:20:13Z")

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My two similar turbo 4 cylinder sedans… An '01 Saab 9-5 and '14 Audi A4. Both produce similar HP and torque. The Audi’s engine is 300 cc smaller and rated 10 hp lower but direct injection. Both weigh about 3600 lbs. Both are similar in size and aero drag. Both are similar in 0-60 mph times.

Both cars consistently beat their EPA highway economy ratings by at 10% and the Audi is 10% overall better than the Saab was and is AWD. Doesn’t matter whether I’m driving or my wife (they were both her cars) the results are the same.

It has not been my experience that the EPA tests are overly optimistic with turbocharged cars. As always, the driver is the biggest factor in the mpg story.

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**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\
**Post date:** [April 13, 2020, 5:46pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/27 "2020-04-13T17:46:36Z")

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In addition, the EPA test isn’t meant to predict what your mileage will be. It is designed to allow comparison between similar vehicles so that the buyer can make an informed choice. Sometimes manufacturers have gamed the system an they were caught eventually. IIRC, Hyundai had overly optimistic gas mileages in some of their vehicles about 8 years ago and made changes eventually to their methods to provide more accurate estimates.

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [April 13, 2020, 5:53pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/28 "2020-04-13T17:53:11Z")

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Let’s say the EPA numbers were exactly right, on average. Then there’d be millions of people upset that they were getting less than the average.

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**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [April 13, 2020, 6:22pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/29 "2020-04-13T18:22:54Z")

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> [@shadowfax](#):
>
> The top speed for highway mileage testing is 60mph. The top speed on many highways is 10 higher than that, and in some states it’s 20 higher.
> 
> Additionally, the cars are tested inside on a dyno, so wind resistance is not a factor. They’re tested without the AC running, which does not reflect real-world use.

Actually, wind resistance is taken into account.  
Straightforward calculation, given the coefficient of drag.

> **[Detailed Test Information](https://www.fueleconomy.gov/feg/fe_test_schedules.shtml)**
>
> EPA tests vehicles by running them through a series of driving routines, or schedules, that specify vehicle speed for each point in time during the laboratory tests.

" Beginning with 2008 models, [three additional tests] are used to adjust the city and highway estimates to account for higher speeds, air conditioning use, and colder temperatures."

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [April 13, 2020, 6:25pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/30 "2020-04-13T18:25:29Z")

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I know some turbo cars appear to benefit from the EPA test, but the Jetta I rented for a month (1.4 L turbo, great performance) got better than the 40 mpg highway EPA rating, typically getting 45 mpg on the highway. That eliminates any need for a diesel option.

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<div class="post-metadata">

**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\
**Post date:** [April 13, 2020, 6:33pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/31 "2020-04-13T18:33:10Z")

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> [@circuitsmith](#):
>
> Actually, wind resistance is taken into account.
> 
> [Detailed Test Information](https://www.fueleconomy.gov/feg/fe_test_schedules.shtml)

I’m not saying you’re wrong, but nothing on the page you linked to indicates that any sort of accounting for wind resistance is being used. It says they have 3 new tests which account for faster speeds, AC, and cold outside temperatures. It also does not say anything that I could find about whether or not those three new tests are somehow factored into the city and highway numbers that you see on the window sticker, or if those numbers still continue to reflect only the standard city/highway tests.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [April 13, 2020, 6:38pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/32 "2020-04-13T18:38:42Z")

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> [@texases](#):
>
> That eliminates any need for a diesel option

That’s because VW is incapable of designing a diesel engine that can meet emission standards without cheating.

 ![](https://global.discourse-cdn.com/cartalk/original/3X/f/9/f9be85ee65c825b7aceec7938328d2e442deba64.jpeg)

Tester

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<div class="post-metadata">

**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [April 13, 2020, 6:49pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/33 "2020-04-13T18:49:35Z")

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> [@shadowfax](#):
>
> nothing on the page you linked to indicates that any sort of accounting for wind resistance is being used

Um, you have to dig a little deeper if you want details.

> **[How Vehicles Are Tested](https://www.fueleconomy.gov/feg/how_tested.shtml)**
>
> Fuel economy is measured under controlled conditions in a laboratory using a standardized test procedure specified by federal law. Manufacturers test their own vehicles—usually pre-production prototypes—and report the results to EPA. EPA reviews the...

“Engineers adjust the amount of energy required to move the rollers to account for wind resistance and the vehicle’s weight.” [/hand-holding]

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<div class="post-metadata">

**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [April 13, 2020, 6:51pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/34 "2020-04-13T18:51:39Z")

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> [@Tester](#):
>
> That’s because VW is incapable of designing a diesel engine that can meet emission standards without cheating.

True, but I’m saying even if their diesels didn’t cheat they wouldn’t be the best option for high mpgs.

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**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\
**Post date:** [April 13, 2020, 6:54pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/35 "2020-04-13T18:54:15Z")

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> [@circuitsmith](#):
>
> [/hand-holding]

Just because you didn’t link properly doesn’t mean you have to be rude about it. Thanks for correcting your bad initial link.

Now, got numbers for how much resistance is added, and whether or not it accounts for the actual aerodynamics of the vehicle being tested or is just a generic fudge factor?

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<div class="post-metadata">

**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [April 14, 2020, 12:23am UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/36 "2020-04-14T00:23:58Z")

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> [@shadowfax](#):
>
> Just because you didn’t link properly doesn’t mean you have to be rude about it. Thanks for correcting your bad initial link.

The first link was an overview.  
The second link was easy to find from the first, if only you’d make a little effort.  
If you’re not fully satisfied with my service, you can have your money back. 😜

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [April 14, 2020, 4:47pm UTC](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315/37 "2020-04-14T16:47:32Z")

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> [@Tester](#):
>
> Free horsepower.
> 
> Tester

Nothing free about it. But worth the extra cost and complexity.

[Previous page](https://community.cartalk.com/t/2015-ford-escape-why-turbos/162315.md?page=1)
