nellv
Posts: 3
Joined: Thu Feb 25, 2016 6:32 am

Petrol only mpg

Thu Feb 25, 2016 6:38 am

I've had my outlander g4h now for 2 weeks.

I'm due to have a charging point installed in a few weeks time, so I've not actually been able to charge yet as I can't get the car within 5 metres of a power point at the moment, and too afraid to use an extension cord.

I'm using the car on petrol only, and on a mix of both motorway and town driving I'm only achieving a MPG of under 20pmg. Is this right? Please somebody tell me I'm going to see a vast improvement once I can charge regularly!

onlynik
Posts: 39
Joined: Thu Jan 14, 2016 3:16 am

Re: Petrol only mpg

Thu Feb 25, 2016 6:48 am

It's about what I get in town on petrol only.

Last night, zero charge, snowing, frozen screen, drove to the shops, I managed 6.4 mpg. (had heater, stereo, heated seats and steering wheel on)

Carnut
Posts: 260
Joined: Fri Nov 20, 2015 2:35 am
Location: Poole Dorset

Re: Petrol only mpg

Thu Feb 25, 2016 6:55 am

Gosh! That isn't very good. What motorway speeds are you doing? is your 'CHARGE' button switched ON? If so switch it OFF. Turn the heater off and use the leccy seats to warm up. Press 'ECO' as well as that will diminish exuberant acceleration and slow down the A/C , which won't come on if the heater is OFF. click the right hand paddle 'til 0 shows on the centre readout and use the coasting ability of the car.
On the 'TRIP' screen (the one showing MPG Miles per KW & total range etc) press button at the bottom left of the screen. This will give you a 'forever' MPG if it is showing 'MANUAL" that is trip only and will reset itself after about 4 hours. So press "MANUAL" and that will then show "AUTO" in that mode it will be the MPG since it was last manually zeroed.
Don't trust the total available range. PHEV has a small tank! I last bought petrol over a month ago! I charge up about every other day and am showing 73mpg after resetting the meter last time I filled up.(petrol)
I use only a 13amp plug for charging, which suits me fine and a waterproof socket cost me £12. I drilled a hole in the wall of the house and it's fine. Never taken over 5 hours from dead flat. (so saying it never actually goes dead flat. There is always enough voltage retained to start the I.C.E.
Lastly.....don't panic. I bought mine in November and have only just sussed everything out. I am getting about 34-36mpg round town.
Last edited by Carnut on Thu Feb 25, 2016 9:45 am, edited 1 time in total.
2015 Glacier Blue. PHEV Gx4h. Osram Nightbreakers, Dashcam.Cherished Plate. Image

All contentious comments should be taken with a pinch of salt!

maby
Posts: 3033
Joined: Fri Jul 18, 2014 4:46 am

Re: Petrol only mpg

Thu Feb 25, 2016 7:20 am

You should be able to do a fair bit better than 20mpg. Ours is effectively driven as a petrol car due to pattern of usage even though we do have a charging point - my weekday use is pure EV but probably less than 20 miles per week while my weekend use is around 250 miles which is done with no charging capability - and hence drowns out the EV use. We have a lifetime average fuel consumption of about 44mpg.

Repeated short journeys are the best case scenario for EV use and the worst case for petrol use - the engine starts and never gets the opportunity to properly warm up or get any reserve charge into the battery. I just got back from a short trip - perhaps four miles - on a flat battery - and it was showing about 20mpg at the end. If I had driven 30 miles, that would have been showing closer to 40mpg.

Fuel consumption is also very dependent on speed - drive it as a petrol car at 40mph and it will return 45mpg, possibly a bit better. Drive it at 80mph and you'll be dipping down to 30mpg...

greendwarf
Posts: 2327
Joined: Tue Aug 05, 2014 1:32 pm

Re: Petrol only mpg

Thu Feb 25, 2016 1:58 pm

I find a more relaxed driving style helps - even in petrol mode coasting in B0 will help as the engine will shut down if left long enough. So be prepared not to keep at a set speed and allow the speed to tail off before hitting the gas again to wake up the engine. However, I also find using the cruise control more economical than my right foot on motorways. :?

Claymore
Posts: 406
Joined: Fri Oct 02, 2015 3:22 am
Location: Chesterfield, Derbyshire, UK

Re: Petrol only mpg

Thu Feb 25, 2016 4:24 pm

greendwarf wrote:I find a more relaxed driving style helps - even in petrol mode coasting in B0 will help as the engine will shut down if left long enough. So be prepared not to keep at a set speed and allow the speed to tail off before hitting the gas again to wake up the engine. However, I also find using the cruise control more economical than my right foot on motorways. :?
Food for thought.....I did a 80 mile each way trip a few days ago and managed to get a 13 amp refuel overnight before my return. This trip is probably about 80% motorway.

On the way 'down' I decided to use the cruise control and set it at the breakneck speed of 60 mph (a rather more stunning 96 for our Continental readers).

As an aside I read most of the threads on here and noted a graph from Anko recently in response to a question (I think) about the 'sweet spot for engine rpm re charging and so on. It appeared to me that the 'sweet spot' was pretty much in the area that motor manufacturers for many decades have known was the most efficient speed for a car, namely precisely 56 mph (89.6 kph) and that, going back decades, was the speed at which the best achievable fuel consumption was achieved.

Assuming that the laws of physics haven't changed a lot recently imagine that Mitsu decided to pitch the PHEV's most efficient charging rpm at that which it might be turning at if engaged to the front wheels at precisely 56 mph (my vivid imagination has been marvelled at for eons!)

With this fiction firmly set in my mind that is the reason I set 60mph on the CC (speedo exaggeration + ease of setting = close enough!)

On this trip on the M1 we enjoy a fairly long 50mph section (both ways).

Anyway, whilst actually using the CC and after we had become a petrol car (not long - 12 miles then save engaged- in the current temperatures) I was getting a bit depressed watching the fuel consumption heading steadily south and started trying to play with the brake paddles. You learn something new with this thing nearly every day and I don't know why it surprised me to note that whilst the CC is engaged you can't select B1or B0 (I know...but it took me a couple of seconds to figure out why).

I disengaged the CC and started managing the energy myself (including using regen braking) and the fuel consumption stabilised and occasionally increased to 50 mpg and slightly above. I had engaged 'save' with 5 miles range left.

Had a couple of local jobs to do after arrival but before charging and was down to 0 range.

On the way back didn't use CC at all and when we went ICE decided to use 'Charge' as the motor was running anyway and apart from a few overtaking manoeuvres kept pretty much to 60 mph again.

Cancelled 'Charge' when 12 miles range achieved and upwards progress appeared to have slowed, as expected (I'm hopeless at reading the number of bars on the battery icon).

Hit 'Save' again at 5 miles range remaining and removed that when entering our town limits.

Arrived home with a mile or so range remaining and average fuel consumption for the return 55mpg.

I was quite pleased even though there was a steady southerly over the period that would have hindered the first leg and favoured the second. Otherwise the conditions, temperatures and traffic densities were pretty much identical.

In both cases the fuel consumption figures were stable on arrival, in other words they were sustainable over longer journeys.

Unscientific yes, no readouts or graphs, but, as they say, mustn't grumble!

;)

JimB
I do not question but merely seek enlightenment.

'16 GX4H, Orient Red, Gen 3 Glasscoat, Bonnet Lettering, Chrome Pack, Protection Pack, Front and Rear Sensors.

Sunder
Posts: 86
Joined: Fri Nov 13, 2015 3:05 am

Re: Petrol only mpg

Thu Feb 25, 2016 5:50 pm

onlynik wrote:It's about what I get in town on petrol only.

Last night, zero charge, snowing, frozen screen, drove to the shops, I managed 6.4 mpg. (had heater, stereo, heated seats and steering wheel on)
Have I don't the conversion right? 6.4mpg = 2.7km/L?

What are you doing, burning it as a liquid fuel rocket to propel you, or using it to pay your sedan chair bearers to carry the car around the snow?

Once my charge is out, I generally get around 16km/L average: More for start/stops and 110km/h zones, and less for smooth 70-80km/h zones.

greendwarf
Posts: 2327
Joined: Tue Aug 05, 2014 1:32 pm

Re: Petrol only mpg

Fri Feb 26, 2016 1:07 am

Sunder wrote:
onlynik wrote:It's about what I get in town on petrol only.

Last night, zero charge, snowing, frozen screen, drove to the shops, I managed 6.4 mpg. (had heater, stereo, heated seats and steering wheel on)
Have I don't the conversion right? 6.4mpg = 2.7km/L?

What are you doing, burning it as a liquid fuel rocket to propel you, or using it to pay your sedan chair bearers to carry the car around the snow?

Once my charge is out, I generally get around 16km/L average: More for start/stops and 110km/h zones, and less for smooth 70-80km/h zones.
If I recall correctly, your handle indicates an antipodean location - so none of the energy burning elements used by onlynik in addition to motive power. ;)

maby
Posts: 3033
Joined: Fri Jul 18, 2014 4:46 am

Re: Petrol only mpg

Fri Feb 26, 2016 1:11 am

Sunder wrote:
onlynik wrote:It's about what I get in town on petrol only.

Last night, zero charge, snowing, frozen screen, drove to the shops, I managed 6.4 mpg. (had heater, stereo, heated seats and steering wheel on)
Have I don't the conversion right? 6.4mpg = 2.7km/L?

What are you doing, burning it as a liquid fuel rocket to propel you, or using it to pay your sedan chair bearers to carry the car around the snow?

Once my charge is out, I generally get around 16km/L average: More for start/stops and 110km/h zones, and less for smooth 70-80km/h zones.
I assume he is talking about quite a short run. Starting from cold and running a couple of miles to the shops and back, I can easily come in at worse than 10mpg. This improves a lot after the first ten or fifteen miles.

Carnut
Posts: 260
Joined: Fri Nov 20, 2015 2:35 am
Location: Poole Dorset

Re: Petrol only mpg

Fri Feb 26, 2016 4:07 am

I posted* on 'Battery range' before I read Claymore's. Most interesting I shall run a comparison and report back

*I will also be doing a long round trip(200miles, therefore 178 on hybrid) with no charging facilities on mostly fast A roads. I am not expecting much over 25MPG. We shall see!! :?
2015 Glacier Blue. PHEV Gx4h. Osram Nightbreakers, Dashcam.Cherished Plate. Image

All contentious comments should be taken with a pinch of salt!

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