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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Jul 2016
Posts: 240
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Jul 2016
Posts: 240 |
I run Shell V-Power 99RON. Best I have seen was a long motorway run (20 miles+) at 60MPH constant was 30MPG, normally no more than 27 no less than 24  Car leaves a large splatter on unburnt fuel when cold, I wonder where Morgan get the combined of 40MPG from? I am looking at getting a custom map done next when my bank balance recovers
2015 Yellow +4
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Joined: Jun 2014
Posts: 263
Learner Plates Off!
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Learner Plates Off!
Joined: Jun 2014
Posts: 263 |
The early GDI's had an issue with the ECU which they had a recall. My 2014 GDI had this problem and had to go back to the dealers for an upgrade/patch if I remember.
My current 2017 +4 does mid 40's on motorway runs.
2017 Metallic Black +4 GDI
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Joined: Oct 2008
Posts: 2,125 Likes: 37
Talk Morgan Expert
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Talk Morgan Expert
Joined: Oct 2008
Posts: 2,125 Likes: 37 |
I run Shell V-Power 99RON. Best I have seen was a long motorway run (20 miles+) at 60MPH constant was 30MPG, normally no more than 27 no less than 24 Car leaves a large splatter on unburnt fuel when cold, I wonder where Morgan get the combined of 40MPG from? I am looking at getting a custom map done next when my bank balance recovers My 2016 Plus 4 was doing similar mileage in the early days, but I had it remapped and now average 36. The recent run back from MOG19 was nearer 40mpg.
Last edited by Alan Patterson; 03/07/19 05:47 AM.
Regards
Alan
AP08 MOG
2016 Plus 4 GDi - Mazda Soul Red Metallic
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Joined: Jan 2011
Posts: 5,549 Likes: 67
Charter Member
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Charter Member
Joined: Jan 2011
Posts: 5,549 Likes: 67 |
Sorry chaps, I don't measure it. When the super reliable fuel gauge (!!!) says fill me I do however it must be around 40mpg which I think is brilliant when you build in the fun factor.
Here for a good time not a long time!!
Reg
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Joined: Jul 2007
Posts: 3,838 Likes: 9
le Asbo du Bling Talk Morgan Addict
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le Asbo du Bling Talk Morgan Addict
Joined: Jul 2007
Posts: 3,838 Likes: 9 |
I can't comment in terms of miles per gallon but in clubsport tune and on track in the challenge series we are managing a very respectable 0.7 - 1 litres per minute. Which with my very rough maths for Brands Hatch works out around 1l/ 2 km. It does put a smile on your face though. 
Slowly going green
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Joined: Jul 2016
Posts: 240
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Jul 2016
Posts: 240 |
Hi Alan
Where did you get the remap done? What was the cost etc?
As a side question was you power and torque figures afterwards?
Rylan
2015 Yellow +4
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Joined: Nov 2017
Posts: 697 Likes: 7
Talk Morgan Regular
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Talk Morgan Regular
Joined: Nov 2017
Posts: 697 Likes: 7 |
And how has it changes the feel / sound / drivability of the car?
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Joined: Jul 2016
Posts: 240
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Jul 2016
Posts: 240 |
Well since having my manifold changed to a Librands sports one things have improved.
On a long run today I saw 44MPG and didn't drop below 41. The car is still rich but a custom map should solve that.
It shows how bad the standard manifold was on my car then!
2015 Yellow +4
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Joined: Dec 2008
Posts: 22,366 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,366 Likes: 354 |
That's very interesting. I would love to get anywhere near 40!
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: May 2019
Posts: 87 Likes: 8
Just Getting Started
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Just Getting Started
Joined: May 2019
Posts: 87 Likes: 8 |
Interesting, I've covered 1,600 miles in my new Plus4 GDI since I collected it early May. A mixture of long runs at 60-70mph, country lanes and a couple of hundred miles of short trips around town and locally. I use normal unleaded and calculate mpg fill to fill. So far it has been averaging 36.5mpg which seems pretty good to me. I spend a fair bit of time in our powerboat around Poole and with a 300hp outboard we are lucky if we get 2.5mpg ......
AlyMatt
2019 Ivory Plus4
Last edited by AlyMatt; 21/07/19 05:02 PM. Reason: mis-spelling
AlyMatt
2019 Ivory Plus4
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