Sr/t180 Mpg Poll

[OldSkoO1]

my signature sould show my MPG as tracked since the beggining of April.

Odd, your sig says 37.5mpg but your page on fuelly says 31.2mpg

Thats absolutely terrible, unless your doing v.short town / traffic journeys. I've tried my best to get crap economy but i've never dropped below 36.

[Aurissimo]

apologies for late reply...

Fuelly.com can provide the results in UK MPG and US MPG, the 31MPG is in US METRIC....

(Look at the top left corner and click UK instead of US, i don't know why it defaults to US....)

My signature was picked from the Fuelly.com website, you can collect the code to generate that banner, and then paste it on your signature box on forums. have a look around the website

I have had 8 fuel ups with TESCO diesel and I have got 37mpg, I have now switched to BP Super diesel and i will keep using it for the next 8 fill ups and see the difference it makes...

In this tank i am already achieving 41mpg so I think there is going to be a noticeable difference

By the way I drive 128 miles/day , 90 of them on the M1 38 in straight A roads, I don't go above the speed limit (+10%+1.... ), weekends are driving around town, aprox 20miles tops, car is never loaded during the week, and weekends it is just me the missus, baby and pram... tyres checked weekly and set to nominal + 1 PSI using my callibrated tyre gauge, and tyres are original Dunlops...

Consumption is Sh!te, but then you do have a big turbo who probably likes a drink and could swallow small babies... in order to deliver the 180 PS and 400 Nm...

[OldSkoO1]

apologies for late reply...

Fuelly.com can provide the results in UK MPG and US MPG, the 31MPG is in US METRIC....

(Look at the top left corner and click UK instead of US, i don't know why it defaults to US....)

My signature was picked from the Fuelly.com website, you can collect the code to generate that banner, and then paste it on your signature box on forums. have a look around the website

I have had 8 fuel ups with TESCO diesel and I have got 37mpg, I have now switched to BP Super diesel and i will keep using it for the next 8 fill ups and see the difference it makes...

In this tank i am already achieving 41mpg so I think there is going to be a noticeable difference

By the way I drive 128 miles/day , 90 of them on the M1 38 in straight A roads, I don't go above the speed limit (+10%+1.... ), weekends are driving around town, aprox 20miles tops, car is never loaded during the week, and weekends it is just me the missus, baby and pram... tyres checked weekly and set to nominal + 1 PSI using my callibrated tyre gauge, and tyres are original Dunlops...

Consumption is Sh!te, but then you do have a big turbo who probably likes a drink and could swallow small babies... in order to deliver the 180 PS and 400 Nm...

I did a run down the A50 the other weekend, good 30-40mins and was doing between 65 and 70mph in 6th and getting between 56mpg and 62mpg each time i checked. Of course as soon as i hit the town it averaged out high 40's, then i hit the peak district with monster hills and that dropped to high 30's by the end of my trip :D

Just for fun i put the instant read out on when i was trying to climb a very steep hill coming out of castleton by mam tor and it was giving me 8mpg :D

I didnt fine tesco all that good. However i get no difference between vpower and normal Shell diesel. I would try normal Shell diesel, it would give as good MPG as BP ultra but cost the same as Tesco, at least it does here.

[Aurissimo]

ok but for scientific research I will keep 8 BP ultra diesel and then switch to Shell... I have them all within my daily route so I can plan it ...

I hope this "scientific "research will prove the theory of fuels... at least in my books...

***UPDATE*** 29/05/09

9th fuel up now brings the average from 37 to 37.4 (over 9 fill ups) last tank average was 41.mpg

another tank of BP ultimate diesel let's see what happens...

[illegalhunter]

40+mpg i cant wait . My type R was doing 27mpg 250/60 miles to the tank . Roll on tomorrow @12

[OldSkoO1]

40+mpg i cant wait . My type R was doing 27mpg 250/60 miles to the tank . Roll on tomorrow @12

You will be one of the few that are happy with 40mpg.

I get in the 40's too but there are quite a few people here who are v. disappointed they aren't getting the combined 45mpg. Or 50+ on a run.

I had a supercharged t-sport before that did about 25mpg and a t-sport that was about the same as your type-r. I'm happy with a t180 and low 40's.

If you want good MPG and 180bhp + then your looking at a lighter 120d or a 123d which will do mid - high 40's over a tank.

[illegalhunter]

Ive did 150 miles since yesterday getting 38 mpg, mostly town driving.

[Rick D4D]

Ive did 150 miles since yesterday getting 38 mpg, mostly town driving.

Hi, yes thats about what we get last week I went to Scotland and managed 45.4mpg doing no more than 75 so I think that is about the limit of my car, maybe as the engine frees up more we will get a bit better ;)

[Aurissimo]

My engine has now done ... 56,000 so it is "very free" and it is still cr@p...for economy.

as for illegalhunter you'll probably get 35mpg the first month or so, until you realise the new facts

The 180 has all the ooomph below 4000rpm ( I know this was a bit of a no-go area, or go through it very quickly, on your type-R)

you'll have to adjust to the new engine sound ( the higher the revs the lower the power ...I used to use the rev sound to judge my gear changes... )

You don't need to do so many gearchanges... very lazy car...

I know I had a major culture shock re-aligning my driving from Japanese rev-friendly petrol cars ... to my first diesel with a rev range half that of my old !Removed!...

probably why i still can't get the fricking thing to do more that 40mpg...

[illegalhunter]

In the last month of owning my R i spent £312 on fuel. The trip to work today 27 miles 44mpg, awesome

[OldSkoO1]

In the last month of owning my R i spent £312 on fuel. The trip to work today 27 miles 44mpg, awesome

54 miles a day in a type-r; thats quite a bit in petrol i must say!

Don't know if you put v-power in your CTR but i had to use v-power in the compressor but the t180 runs best on Shell extra which is dirt cheap but the best fuel to use round here.

Also you can chip your SR180 - see the sr180 feature article here : http://www.tunit.com/newsletter/summer2008.pdf

It is a very small jump in power but a big extension to the power band and torque which makes the difference. The power band is doubled and runs well within the 180bhp the engine is "officially" rated for.

[Rick D4D]

In the last month of owning my R i spent £312 on fuel. The trip to work today 27 miles 44mpg, awesome

54 miles a day in a type-r; thats quite a bit in petrol i must say!

Don't know if you put v-power in your CTR but i had to use v-power in the compressor but the t180 runs best on Shell extra which is dirt cheap but the best fuel to use round here.

Also you can chip your SR180 - see the sr180 feature article here : http://www.tunit.com/newsletter/summer2008.pdf

It is a very small jump in power but a big extension to the power band and torque which makes the difference. The power band is doubled and runs well within the 180bhp the engine is "officially" rated for.

last week when I went to Scotland in the T180 I did just short of 900miles and used £92 diesel witch was about 1.01 a ltr (2 x tanks) the same places in the CTR last year with the same type of driving cost me close to £168 for petrol at a £1 ltr (4 x tanks but the tank is about 7ltr smaller on the CTR). I would imagine even if the SR180 does not give the Toyota MPG figures you will be very very happy in comparison to the CTR for the mpg.

[Aurissimo]

3rd tank of BP ultimate and I am definetely getting around 4 mpg. MORE than TESCO.

That is nearly an extra mile per litre of diesel(around 0.8 mile extra /litre) . which means on a 47 litre fill up I get a further 42 miles per tank easy!!! that's around a gallon saving and when you take the extra cost of the fuel... that's a saving of around 2 quid per tank maybe a bit more... and this is with the more expensive fuel...

So ... better economy, and hence better running costs overall with the more expensive fuel...

5 More tanks and I will get that average up to 40 ... the challenge is on...

Then I'll move to Shell normal and see what that does...

[Rick D4D]

I got 46.7mpg today (personal best) why driving from Mansfield to Lincoln and back, I will admit the foot was very light but the sunroof was open full and the drivers window down.

[redeye666]

I got 46.7mpg today (personal best) why driving from Mansfield to Lincoln and back, I will admit the foot was very light but the sunroof was open full and the drivers window down.

I have to say I was a little worried that I would be getting 30mpg in this car, got mine today, picked it up from the dealership went into town for a spot of lunch roads was very congested - then a slow cruise home as was following someone and over the 66 mile trip avg 52.6mpg, now I know it won't stay that good coz I won't be driving like that all the time

I guess a daily commute to work over a week maybe a more realistc real world mpg.

[OldSkoO1]

Mine also does 50 odd mpg on a nice A-Road cruise / situation like you explained, even with a tiny bit of town driving.

However, get it into rush hour traffic, more town stuff and congested a-roads and it will go down to low 40's.

Still fine with me :)

[redeye666]

Mine also does 50 odd mpg on a nice A-Road cruise / situation like you explained, even with a tiny bit of town driving.

However, get it into rush hour traffic, more town stuff and congested a-roads and it will go down to low 40's.

Still fine with me :)

Yeah it went down on my way to work and more so way home due to rush hour traffic, avg counter is still sitting at 48mpg so still pretty happy. I did put my toe down on a large hill and it started dropping pretty fast.

If it can maintain 40mpg+ on my daily slog I will be more than happy.

[Rumbly]

Does anybody know if fuel consumption meters are actually very accurate, and does the accuracy vary from car to car of same make and model?

A while back I took note of fuel used between fill ups and milage travelled. Can't remember the exact figures but fuel consumption meter read 50.x mpg, while working it out from milage and fuel used gave 54.x mpg, a difference of around 4mpg.

Working it out from fuel used and distance travelled without accurate measurement of volume and distance is always a bit dodgy as you really don't know if you actually got the ammout of fuel read from the pump, or if the odometer is even very accurate.

Just wordered if anybody had done any accurate testing?

[T Sport 1978]

I have been playing with the settings that was covered in the 130% post a while ago.

Well, i have found my optimal setting in regards to MPG accuracy.

It is 95%.

Now my computer is stating to within 1-2MPG differnce after confirming with manual calculations.

[Aurissimo]

ok but for scientific research I will keep 8 BP ultra diesel and then switch to Shell... I have them all within my daily route so I can plan it ...

I hope this "scientific "research will prove the theory of fuels... at least in my books...

***UPDATE*** 29/05/09

9th fuel up now brings the average from 37 to 37.4 (over 9 fill ups) last tank average was 41.mpg

another tank of BP ultimate diesel let's see what happens...

***UPDATE*** 31/07/09

I am now tired of this experiment so I will report my findings to date...

I have completed 20 fill ups whilst trying to keep my driving consistent through out to eliminate driving variations. the driving routes have been exactly the same, with some small variation on weekends, but the bulk of total mileage (8084 miles) is done using set roads i use to commute to work.

20% A roads, 75% Motorway, 10% city. OVERALL consumption rate can be seen below in my Fuelly banner.

I have done

8 fill up with TESCO average mpg across all 8 = 36.9mpg

7 fill up with BP ULTIMATE average mpg across all 7 = 40.2 mpg

5 fill up with BP NORMAL average across all 5 = 38.4

So

I gain 1.5 mpg from Tesco to BP , which on a 50L tank (11 gallons) would give me a further 16 extra miles.

I gain 3.3 mpg from TESCO to BP ultimate , which on a 50L tank ( 11 gallons) would give me 36 extra miles

In money terms :

Tesco Average Price per gallon 4.69

BP Normal Average Price per gallon 4.58 (I know!!!...cheaper than TESCO)

BP Ultimate Average Price per gallon 4.97 ( ouch...)

So

The extra 16 miles in using BP normal would have cost me a further 2 quid of tesco fuel...

The extra 36 miles in using BP ultimate would have cost me a further 4.57 quid of tesco fuel...

considering it cost me on average to fill up 50 litres

Tesco Fuel 11gallons @ 4.69£/gal = 51.5 quid

BP Normal 11 gallons at 4.58£/gal =50.38 quid (take away 2 quid to match Tesco fuel range = 48.38 quid)

BP ULTIMATE 11 Gallons at 4.97£/gal = 54.67 quid (take away 4.57 quid to match tesco fuel range = 50.10 quid)

CONCLUSION

Fuel consumption is better with BP Ultimate ( wow! amazing fact, I'd never guessed that one... , I know...)

but then if you translate this onto actual money saved to you... I would save more money overall buying BP normal diesel, than using Tesco Fuel

And even the more expensive BP ultimate will be more cost effective that TESCO cheap stuff, or thereabouts... so why buy the cheap stuff...

Aside from that the performance seemed better and more consitent with the BP ultimate ( in terms of accelerations, idling feel etc) where the BP normal and Tesco you could notice the car running slightly better or worse depending where you got the fuel...so more variability in the fuel quality grade.

So whilst it is not a great difference it proves in my mind that the source of diesel will have a noticeable effect, and shall be sticking with BP ultimate, unless the price difference increase significantly, in which case I will go back to BP normal.

Goodbye Tesco ( unless they are planning TESCO ultimate?)

[OldSkoO1]

Did you alternate your fill ups from the different suppliers?

I can have as much as 4mpg difference through the seasons.

How did you drive? Changing with the green arrows, slow acceleration etc?

I concluded that Shell extra is best for me (so Shell equiv. of your findings), sometimes i get ultimate if it isn't much more. But i also concluded that accelerating with about 50% gusto (so fairly quickly), and keeping the rev's between 1.8 and 2.6k RPM (max torque) was better on fuel than tootling up to 1.8k and changing gear and keep the rev's low. I forced myself to drive like this once and the MPG was no better, the second time i gave up after half a tank, i couldn't stand it.

Slow driving for MPG is probably no better because your accumulating soot because your not running at max compression and therefore the heat isn't high enough. So to compensate the 5th injector kicks in more to burn off the soot in the DNPR and that uses a fair bit of fuel. Also another reason apart from sanity, not to drive like a granny is, the compression in the cylinders, soot build up which can cause injector and EGR valve problems. It is always good to take it right through the rev range regularly too.

So not only is MPG better or the same keeping it between 1.8k - 2.6k RPM it may help keep the engine functioning nicely. I'm a big advocate of getting up to speed pretty quickly and then sticking at that speed steady at around 1.8k - 2k RPM. Any accelerating is then done in the max torque range where the engine essentially is working most efficiently.

[Aurissimo]

Did you alternate your fill ups from the different suppliers?

I can have as much as 4mpg difference through the seasons.

How did you drive? Changing with the green arrows, slow acceleration etc?

I did not alternate fuels to ensure the fuel study was representative, in theory i should discard the first 2 tanks as they would be mixed of previous and new type of diesel but the error is probably not that noticeable...

the seasons of course will have an effect but this has taken place in a short period of time so the effect is negligible.

driving mode is "my driving mode". trying to drive to green light or to another fixed parameter would require special concentration to meet that everytime...and to do this consitently over 20 refills would be a nightmare... it is more reliable to just drive like you normally do... I drove, my style but trying to ensure i stuck to speed limits +10% +1 so perhaps i crept up to 77mph sometimes...sorry officer!

I know i am heavy footed sometimes , but the heavy footedness would have been constant through out... to put it simply I am not an economy type driver, I like to keep up with traffic, but also keep good safe distances so i don't use brakes much on the motorway...

tyres where always checked (weekly) and checked against my callibrated gauge ( not the fuel station dodgy meteres)

I think the next step to increase MPG is go for "eco" tyres but then the extra hardness (they have to be to be lower rolling resistance) will affect noise in cabin, grip, and feel... so I am not sure if I i need that extra few MPG to sacrifice grip, comfort and wet weather performance. (currently running Dunlops SP01 as per toyotas spec.)

[Rick D4D]

I have been playing with the settings that was covered in the 130% post a while ago.

Well, i have found my optimal setting in regards to MPG accuracy.

It is 95%.

Now my computer is stating to within 1-2MPG differnce after confirming with manual calculations.

could you tell me how to do this and it will be interesting to see what mine is set at and what it says i get if i change it to the same as yours then what i get

[monty2]

There is a lot of opinions on this so I thought a poll would be a good idea. I myself am very disappointed with the mpg to what I thought we would get.

I tow a caravan with my 2.0D4D and get between 29-33 dependending on motorway or ordinary roads

about town low forties touring mid fifties

Which is about 30% better than the 1.8 Avensis I used to have