Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Hybrid => Topic started by: Ozzie on February 26, 2019, 10:06:36 PM
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Whilst fuelling the car, for some reason the pump nozzle didn't cut out, and the tank overflowed. I then ran it to zero range +8 more miles, the trip meter read 438 miles, so managed 430 miles on a very full tank. This included around 200 miles on motorways and 12 hours of driving lessons.
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Hi,
Do you remember what fuel did you use? BP, Shell, normal or premium?
How much of fuel did you put at the occasion?
Thank you
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Hi,
Do you remember what fuel did you use? BP, Shell, normal or premium?
How much of fuel did you put at the occasion?
Thank you
Sainsburys normal, the tank wasn't empty when filled to overflowing so it was £36 and a few pence to overflow.
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According to my records the best I did on one tank was 451 miles of mainly open road motoring before filling up. However, as I could get only 30.3 litres into the tank there was still plenty in reserve (a matter of filling up when convenient). The next best was 438 miles when I filled up as the car claimed only 13 miles remaining. On that occasion it took 33.5 litres to refill so still a decent reserve.
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According to my records the best I did on one tank was 451 miles of mainly open road motoring before filling up. However, as I could get only 30.3 litres into the tank there was still plenty in reserve (a matter of filling up when convenient). The next best was 438 miles when I filled up as the car claimed only 13 miles remaining. On that occasion it took 33.5 litres to refill so still a decent reserve.
From what I have seen ( even on my motorbike ) 'miles remaining' is till you get onto reserve fuel. I am glad Honda are conservative on this because I have seen on some car comparisons that some cars like Mini and Fiat 500 give you less than 20 miles warning ( which to me is far too little ) - these days fuel stations are like hospitals - more than 20 miles apart but when you eventually find one they are big :(
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I regularly manage 430 miles +, if I wait until the fuel light comes on. But I don't have a hybrid.
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I regularly manage 430 miles +, if I wait until the fuel light comes on. But I don't have a hybrid.
Ironically, the "fuel efficient" hybrid gets a smaller tank of 40 litres although it seems only 33 litres of it is usable as it shows empty with 7 litres left.
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That makes a difference. Mine is 42 litres.
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I think car makers aim for a certain range from a tank so a more efficient car will get a smaller tank capacity. Carrying extra fuel is a weight penalty and makers try to squeeze last grams out of weight, even to the extent of not supplying a spare wheel....... and sometimes even skimping on sound deadening.
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That makes a difference. Mine is 42 litres.
A minimal difference though.
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Well, just done my first tank full since getting my Hybrid and here are some facts and numbers.
Things to note:
1. All journeys were a minimum of 30 minutes in drive time, often longer
2. Most journeys were either in crappy stop start London traffic or around London's A406 road (it's a large ring road that goes around London basically)
3. I drove like a saint, ensuring my dash was glowing green whenever possible and using cruise control too where applicable
4. I bought 4 new Dunlop tyres (probably should have bought the Michelin Energy Savers, but too late now!)
Result? Not great I don't think. I managed 343 miles. I then brimmed the tank and managed to get 32.1 litres into it (at £1.239 per litre). So basically 48.5MPG (on board computer shows 51.3MPG, so the car over reads by 6%).
Views? I see some folk on here are getting 450 miles, so I am 100 miles short :(
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What I have found with the on board computer of my Mk 1 is it does not show a constant error. It can read plus and minus (I have even had it spot on), so I would continue to calculate your mpg figures.
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Well, just done my first tank full since getting my Hybrid and here are some facts and numbers.
Things to note:
1. All journeys were a minimum of 30 minutes in drive time, often longer
2. Most journeys were either in crappy stop start London traffic or around London's A406 road (it's a large ring road that goes around London basically)
3. I drove like a saint, ensuring my dash was glowing green whenever possible and using cruise control too where applicable
4. I bought 4 new Dunlop tyres (probably should have bought the Michelin Energy Savers, but too late now!)
Result? Not great I don't think. I managed 343 miles. I then brimmed the tank and managed to get 32.1 litres into it (at £1.239 per litre). So basically 48.5MPG (on board computer shows 51.3MPG, so the car over reads by 6%).
Views? I see some folk on here are getting 450 miles, so I am 100 miles short :(
48.5 is not bad for the north circular I would have thought, and significantly better than a non-hybrid Jazz in the same conditions. As for total range, you clearly had some fuel left.
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Result? Not great I don't think. I managed 343 miles. I then brimmed the tank and managed to get 32.1 litres into it (at £1.239 per litre). So basically 48.5MPG (on board computer shows 51.3MPG, so the car over reads by 6%).
Views? I see some folk on here are getting 450 miles, so I am 100 miles short :(
48.5 mpg looks very good for your driving conditions. If you want better you have to do some open road cruising (but not too fast as that also hits the mpg). The hybrid system will improve the mpg for urban driving compared to a non-hybrid system by recoverings some of the energy lost when braking and using it to help with the next acceleration. However, the relatively feeble motor/generator used in Honda's IMA system must limit its ability to recover and reuse energy.
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Thanks for everyone's replies. :D
Since my original post, I have refuelled the tank and also done a service on the car, consisting of Honda Hybrid Oil and a new Honda filter. The temperature is also slightly better, I recall it was around 5 to 10 degrees every time I got into the car.
What puzzles me is the MPG I read some Toyota Yaris Hybrid owners are getting, up to 70 MPG! :o
Form my limited research, it seems to me the differences are (happy to be corrected of course!) as follows........
The Jazz Hybrid came out in 2011 (1.3 litre), the Yaris Hybrid in 2012 (1.5 litre). Unless you are standing still or moving at walking pace, the engine on the Jazz does not switch off and the electric motor only assists. However, in contrast, the Toyota’s Hybrid system can drive on (a) electricity only (b) engine only (c) both together at the same time.
I have read that up to 500 miles on 30 litres is possible.
Honda came out with the original Insight in 1999 (they were the first I think), they have (or had?) an F1 team, they have built some incredible cars (Honda NSX, for example) and spend untold amounts on R&D. I'm surprised the Toyota can better it in the MPG stakes.
Oh another thing - I test drove a Yaris Hybrid - I only drove a poverty spec version and I have an HX so hardly a fair comparison, but overall the interior in the Jazz is far nicer.
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In both cars, petrol is the only source of energy. So improved mpg comes only from running the engine in the most efficient way, and energy recovery while braking. 70 mpg sounds extreme, and certainly not achievable on the North Circular!
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I think that the Yaris is a size smaller vehicle than the Jazz so I would expect a better mpg irrespective of the hybrid system. Another factor is that Toyota coupled their hybrid systems with an Atkinson cycle petrol engine which increases the fuel efficiency at the expense of performance. However, more ccs plus a more powerful electric motor than used in the Jazz's IMA system more than offsets the reduced engine performance.
As an aside, Honda used a part Atkinson cycle engine in the Mk 3 Jazz and this is somewhat gutless at the lower end of the rev range but is very economical if driven at a steady 40 mph https://www.theaa.com/about-us/newsroom/fuel-economy-record-attempt (https://www.theaa.com/about-us/newsroom/fuel-economy-record-attempt). A hybrid would struggle to achieve this mpg under those conditions as the battery adds to the weight but provides little benefit.
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The new Honda CR-V hybrid uses a much bigger 2 litre engine running in Atkinson mode, mainly acting as a generator. Presumably this design philosphy will feed through into a new Jazz hybrid in due course.
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Toyotas have a lot more experience of hybrids, i quite liked the automatic hybrid yaris when i tried one but it's noticibly smaller inside than the Jazz.
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I found the Yaris too small and dark, the Auris is a bit big, but like the 3 bears, the Corolla might be perfect for my next tuition car.
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I am pretty sure with the my hybrid Jazz (2014) you could get 500 miles to a complete tank full (40litres). In my normal Jazz 1.4EX I can get over 100 after the fuel light comes on giving the normal a range of about 400 miles. So far in the Hybrid Jazz I have had close to 500 before I bottled out and refuelled. The fuel light came on at about 400. Another time when I am close to that again and the conditions are suitable and safe I will take petrol with me and run it until it stops and report an example of an absolute range. BTW if you turn off the ECO and put gear shift to S (for second, according to the book) you too can get over 117, but consumption obviously suffers for that period, but it drives like a go kart and is fantastic. Off to Europe again in Jazz for D-Day anniversary.
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I regularly get 410 - 450, before the light comes, on in my non-hybrid Jazz.
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Hello, I hope everyone is well.
As an update, I have done just over 1,000 miles in my Jazz now, which has resulted in 3 full tanks of petrol.
Observations:
1. I could never really get more than about 32 litres into my tank
2. The on board computer MPG vs. real world tank to tank method seemed to vary by 6% to 11%
3. The very best I could manage, driving like an absolute saint was a real world 52.3MPG (on board screen showed 56.4, so a difference of 8%)
4. The journeys were all very similar - some congested stop start traffic but also some A roads with cruise control on 40mph due to roadworks and average speed cameras
5. My average for the 3 tank fulls is as follows;
48.5MPG (screen showed 51.3MPG)
52.3MPG (screen showed 56.4MPG)
50.5MPG (screen showed 56.1MPG)
Summary: the Hybrid Jazz in mixed conditions, in mild weather, does a real world 50MPG
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Another update - managed 424 miles on a full tank this month, which is a real world 57.5MPG (computer showed 62.4, so +8% over read). I drove about 10 to 12 miles once the orange light went on and probably could have done more but was a little nervous, so stopped to fill the car up. 33.4 litres went in, so there was a good gallon at the bottom there somewhere!
At £1.26 a litre that's about 9p a mile which is damn impressive.
Granted we have had some very warm weather in Aug and the journeys were mostly A road stuff at 40 mph, overall its a brilliant little car, glad I joined the club folks!
:)
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3 out of the last 4 of my top ups have been more than 470 miles. And I don't have a hybrid!
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OK, I'm gonna keep a 5 litre fuel can in the back of the car for next time in order to try and beat my record, I might stretch to 450 I think (fuel tank capacity is 40 and I only managed to pump in 33 litres so at least a gallon left in there somewhere).