About a week ago I found the instant trip recorder on my used 2017 F type S AWD with 28,000 miles on it. And although fuel economy was the last thing considered in the purchase I found
the trip recorder simple to use and interesting so I started watching it.

I live outside Chicago and drive 9 miles to work on surface streets through 4 different suburbs to get to work. I have about a half dozen different routs I can take so
I thought it would be interesting to see which was the most fuel efficient.

I leave early in the morning so there is no stop and go traffic and it is a typical drive with about two dozen traffic lights that are mostly green at that time. I don't need the A/C on
and I left the stop/go switched on. Conservative driving but not crazy slow either. After a weeks worth of trips I averaged 22 to 24 MPH and my gas mileage was 27.3 to 27.6 MPG.

If you can believe the recordings this amazed me as I had a 6 cylinder Ford Fusion, that at best, got 22 MPG.

If the numbers are correct this car continues to impress me in ways I would have never expected.

JMS

 

If you are relying on the Jag's computer to tell you mpg, it is likely optimistic by 10 - 20%. Use the paper and pencil method to see if you get the same numbers.

 

I wondered about the start/stop feature, so make that test in a future week. One of the Car Mags documented a .5 mpg benefit, not enough for me to offset the annoying re-start of the feature.

 

Of course, the benefit will only exist if there are a lot of stops on your journey. I find it unnerving when I stop and everything goes quiet, so I turn it off as soon as I fire mine up - I started decades ago (half a century in fact!) on unreliable cars that were often difficult to start, and I still have that dread!

 

Im sure you could get a few better still on longer highway trips. Two weeks ago I drove my 2017 premium from Cape Canaveral to New Mexico. I don't remember the exact distance, but around 1500 miles. I averaged 30.2 mpg with an average speed of 80 mph. I daily drive the car over a mountain range twice daily (to/from work), and still average around 30 mpg from my house to work and back. It helps that the car coasts down the mountain very efficiently, which balances out the low mpg on my way up the mountain. Then there are the times I put it in dynamic and sport shift and rip around town. Don't get nearly as good fuel economy then.

These 6 cylinders can be very efficient, and as much as I see people buying this type of car act like efficiency doesn't matter, the truth is, it really does. That is, if people are concerned about their children's future, at all. It's not just about "well I can afford the gas so it doesn't matter", as I've heard some people argue in the past.

I have a racechip gts black and bluetooth box coming. I'm interested to see how much that will affect fuel economy on the various settings, in the same driving conditions.

 

I like the adrenaline avitar

 

I'm surprised someone recognized it so quickly. I've only had it up for about a week.

 

When I was using my own car for work, getting a 'fixed' cents-per-mile reimbursement with rapidly increasing gasoline costs, I started using some hypermiling techniques. My changed behavior netted me about 8% MPG improvement.

To this day I like to observe my MPG on our cars that have indicators. (Yes, the F is optimistic by ~ 1.5 MPG compared to the calculated math.) On a recent trip from NJ to Watkins Glen Int'l and back, our V6 saw 31.5 MPG indicated (29.5 calculated). (It was raining and foggy so I wasn't flogging the speed limits...) 445 miles on the tank, and DTE was still 75 miles!

++++++++++++

Regards stop/start/ECO, we have a number of very long traffic lights in our area. After watching the video linked below (which says that the break-even point for ECO is ~ 7 seconds of idling) I let the engine stop on the longer light cycles. (I have also become adept at letting the car creep up to a short red light so that the engine doesn't shut down.)


All of us are competitive in one way or another....

 

I'm with you scm every time the car shuts off it take me back to the 'old days' and I get that little sinking feeling in my stomach.

When I am not trying to set a fuel economy records the start/stop is turned off.

It is interesting to see the comments about others' mileage..

 

Hey SS4pk, what do you think of your Evoque? Their forum is not as thorough as the FT.

The "0h no" feeling of an engine dying at a stop goes back to my earliest Jaguars over 40 years ago.

 

That reminds me of the first time I was in a car with stop/start technology. I was picked up by the salesman at the airport in his BMW SUV to go and view the soon to be mine 07 XKR.

When we got to the first set of traffic lights the engine 'stalled'.

My initial reaction was oops, that is a bit embarrassing then I realised why it happened

 

The stop/start feature doesn't bother me at all. So far, it has been entirely unobtrusive. Even in 100+ degree weather, I still stay comfortable with the engine off for the duration of my longest stoplights, so I simply have no need to burn fuel while stopped at a light.