Mpg

AndyJacobs · 8th June 2018, 11:18

My ZT 190 has been returning poorer and poorer MPG of late. It was down to about 25mpg over a tank using brim to brim for calculating.

I decided to throw caution to the wind and chucked £6 at a bottle of injector cleaner a few weeks ago.

My use is very constant. I drive around 35 miles a day x 2 with pretty much the whole time averaging about 40mph according to Google Maps. I drive through a couple of villages, a lot of 60mph and a short stretch of motorway. In the morning, I get about .5 miles from work and sit in a queue for around 5 mins.

The MPG has been improving steadily over the last few tanks with the last one being 29.5mpg which I think is pretty good going. I managed 380 miles before I had to fill up this morning.

Has anyone else had any experience like this?

Tracker · 8th June 2018, 12:35

I keep a careful check on my mpg using brim to brim calculations and I get a consistent 29 mpg on my ZT 180 auto. I admit to making few concessions to economical driving (I enjoy the performance too much!) but my daily journey is mostly motorway cruising when the mpg is definitely at it's best. If I am doing more pottering around town the mpg drops quite a bit. Given the size of engine and weight of the car, I don't think you can complain at these figures.

SCP440 · 8th June 2018, 14:35

Worth checking the air filter. A lot get left a lot longer than is advisable and this can dramatically effect how your engine performs. I had a Focus owner recently with the same complaint, I pulled out the air filter to find it was almost black. The owner was surprised and told me he was sure it was replaced on the last service or at least he was invoiced for it.

m2n · 8th June 2018, 17:32

Brim to Brim! Surely all that extra weight in the tank will affect mpg?

Jim Jamieson · 8th June 2018, 18:16

And I thought I was doing fine at 26mpg mind you I’m only tottering about locally.
My first longest run in the Zircon will be to Gretna next month.

There’s a lot goes into getting better mpg including driving style effective brakes ie not sticking, proper tyre pressures and overall weight, you would be surprised just how much unnecessary weight that’s carried around in the car.

maxi_crawf · 8th June 2018, 19:01

I had a run to and back to Edinburgh last December, sticking at about 3K rpm so about 65 mph measuring brim to brim I got just shy of 32 mpg in my 190.

RattyB · 8th June 2018, 19:56

Avoid supermarket fuels and get 'em serviced regularly by a garage who's office isn't a pickup truck with the engine running.

Personally I'm a great advocate of 6,000 mile oil changes. Quality oil changed regularly is the best mechanic you can have.

Edit: If you want to use a fuel cleaner, RedEx is the only one worth bothering with, and it is best mixed with a half full or quarter full fuel tank.

bl52krz · 8th June 2018, 20:40

I have used Redex since I came out of nappies. Both in m/ cycles and cars. Tried one or two others but always went back to Redex.I had my car on the T4 at the nano meet at Four Ashes two months ago, and at 98000 miles, they are still working ok .Got to be down to Regular servicing and Redex, or luck?

Jim Jamieson · 9th June 2018, 19:39

Yes Redex for me too, I’ve just put my second bottle into the Zircon this morning and perhaps it’s this nice warm weather but I’m now up 28 mpg so happy with that.
I’ve used supermarket fuel for the last 20 years on my cars and never had a problem but I agree on the regular servicing ie oil changes.

RattyB · 9th June 2018, 19:57

Quote:

Originally Posted by Jim Jamieson

Yes Redex for me too, I’ve just put my second bottle into the Zircon this morning and perhaps it’s this nice warm weather but I’m now up 28 mpg so happy with that.
I’ve used supermarket fuel for the last 20 years on my cars and never had a problem but I agree on the regular servicing ie oil changes.

You probably never has any problems with supermarket fuels because you are a user of RedEx.

8th June 2018, 11:18	#1
AndyJacobs Regular poster MG ZT 190 Join Date: May 2013 Location: Andover Posts: 73 Thanks: 14 Thanked 5 Times in 4 Posts	Mpg My ZT 190 has been returning poorer and poorer MPG of late. It was down to about 25mpg over a tank using brim to brim for calculating. I decided to throw caution to the wind and chucked £6 at a bottle of injector cleaner a few weeks ago. My use is very constant. I drive around 35 miles a day x 2 with pretty much the whole time averaging about 40mph according to Google Maps. I drive through a couple of villages, a lot of 60mph and a short stretch of motorway. In the morning, I get about .5 miles from work and sit in a queue for around 5 mins. The MPG has been improving steadily over the last few tanks with the last one being 29.5mpg which I think is pretty good going. I managed 380 miles before I had to fill up this morning. Has anyone else had any experience like this? __________________ --- 2003 MG ZT 190 in Trophy Blue

8th June 2018, 12:35	#2
Tracker Loves to post MG ZT Join Date: Sep 2015 Location: Dunmow Posts: 350 Thanks: 139 Thanked 83 Times in 72 Posts	V6 mpg I keep a careful check on my mpg using brim to brim calculations and I get a consistent 29 mpg on my ZT 180 auto. I admit to making few concessions to economical driving (I enjoy the performance too much!) but my daily journey is mostly motorway cruising when the mpg is definitely at it's best. If I am doing more pottering around town the mpg drops quite a bit. Given the size of engine and weight of the car, I don't think you can complain at these figures.

8th June 2018, 17:32	#4
m2n Gets stuck in Rover 75 2004 Contemporary SE 2.5 Auto Join Date: Feb 2018 Location: Preston Posts: 513 Thanks: 67 Thanked 56 Times in 46 Posts	Brim to Brim! Surely all that extra weight in the tank will affect mpg? __________________ To have and not need, than need and not have. Eve was born on: Tuesday 14th September 2004 @ 07.54.23 Date of first Registration: Friday 24th September 2004 She was the: 103,715th 75 to run off production line, out of 112,381 She was the: 382nd 75 2.5 V6 Contemporary SE to be made out of 686 She was the: 1,415th 75 in Firefrost Red (code CEV) to be made out of 2,089 Firefrost Red 75's

8th June 2018, 19:56	#7
RattyB Regular poster Rover 75 Join Date: Oct 2016 Location: BOGNOR REGIS Posts: 78 Thanks: 16 Thanked 2 Times in 2 Posts	Avoid supermarket fuels and get 'em serviced regularly by a garage who's office isn't a pickup truck with the engine running. Personally I'm a great advocate of 6,000 mile oil changes. Quality oil changed regularly is the best mechanic you can have. Edit: If you want to use a fuel cleaner, RedEx is the only one worth bothering with, and it is best mixed with a half full or quarter full fuel tank. Last edited by RattyB; 8th June 2018 at 19:59..

8th June 2018, 20:40	#8
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,387 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	I have used Redex since I came out of nappies. Both in m/ cycles and cars. Tried one or two others but always went back to Redex.I had my car on the T4 at the nano meet at Four Ashes two months ago, and at 98000 miles, they are still working ok .Got to be down to Regular servicing and Redex, or luck? __________________ Great Barr, Birmingham.

8th June 2018, 14:35	#3
SCP440 I really should get out more....... MG ZT-T 260 Join Date: Feb 2016 Location: Witney Posts: 2,504 Thanks: 6 Thanked 910 Times in 571 Posts	Worth checking the air filter. A lot get left a lot longer than is advisable and this can dramatically effect how your engine performs. I had a Focus owner recently with the same complaint, I pulled out the air filter to find it was almost black. The owner was surprised and told me he was sure it was replaced on the last service or at least he was invoiced for it.

8th June 2018, 18:16	#5
Jim Jamieson This is my second home Rover less ! Join Date: Jun 2011 Location: Tarbolton Posts: 3,442 Thanks: 393 Thanked 888 Times in 542 Posts	And I thought I was doing fine at 26mpg mind you I’m only tottering about locally. My first longest run in the Zircon will be to Gretna next month. There’s a lot goes into getting better mpg including driving style effective brakes ie not sticking, proper tyre pressures and overall weight, you would be surprised just how much unnecessary weight that’s carried around in the car.

8th June 2018, 19:01	#6
maxi_crawf Posted a thing or two R75 Saloon Conn CDT SE, MG ZT190+ Join Date: Nov 2006 Location: Kingston-upon-Hull Posts: 1,960 Thanks: 823 Thanked 426 Times in 274 Posts	I had a run to and back to Edinburgh last December, sticking at about 3K rpm so about 65 mph measuring brim to brim I got just shy of 32 mpg in my 190.

9th June 2018, 19:39	#9
Jim Jamieson This is my second home Rover less ! Join Date: Jun 2011 Location: Tarbolton Posts: 3,442 Thanks: 393 Thanked 888 Times in 542 Posts	Yes Redex for me too, I’ve just put my second bottle into the Zircon this morning and perhaps it’s this nice warm weather but I’m now up 28 mpg so happy with that. I’ve used supermarket fuel for the last 20 years on my cars and never had a problem but I agree on the regular servicing ie oil changes.

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