Hijet Fuel Economy

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Hijet Fuel Economy

Post by HighlyJetted on Wed Jan 21, 2015 10:18 pm

As its popped up a few times before I thought I would start a fuel consumption thread.

Please post your own findings to see how the bigger picture is for Hijet owners.

I have done my experiment over 3 full tanks of fuel, with my typical spirited driving style, which is mostly commuting down bendy bumpy B roads, and stop start town traffic. Approximately 16 miles each way 5 days a week. Nipping out round town at dinner, picking up cars, some times towing a car back to the workshop if need must. Also a couple of 40 mile drives thrown into the mix too.

62287 filled 23.93 litres
62468 filled 24.05 litres
62625 filled 23.19 litres
Now just refilled again at 62797

Total Mileage 510 miles
Total Fuel used 71.17 litres (15.65 UK Gallon)

32.58 miles per gallon

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Re: Hijet Fuel Economy

Post by PFM on Thu Jan 22, 2015 11:08 am

Every time one of my vans is filled, the mileage is noted on the receipt and the info transferred to a spreadsheet so I have a bit more data to share than most.

My own use is mainly around town with the occasional longer trip. In town most trips take about 10-15 mins, with a break in between, up to about 160 miles a week, and I try to drive as economically as possible without getting silly over it.

The delivery van does short, stop-start door-to-door drives round town 3 mornings a week, totalling about 80 miles a week. Current driver has been with me since 2007.

Me: 1995 '993 - Running average gradually increased from about 33mpg in 2003 to 39.55mpg in 2013 at 99k miles.

Me: 2008 1.3 - Running average 39.75mpg from 2013 to date (at 26,606 miles)

Driver: 1998 '993 - Running average 32.69 from 2004 to 2014 (at 91k), though was hitting 35mpg in the earlier years.

First me then Driver: 2002 1.3 - Running average 33.08 from 2013 to date, now at 59,950 miles (though I now think it had a speedo change at 38k, so more like 98k now)

My impression is that mpg increases with mileage if driven sensibly, and that short stop-start trips hurt consumption badly.

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Re: Hijet Fuel Economy

Post by Gra on Thu Jan 22, 2015 2:09 pm

Typically 32mpg on petrol and 28mpg on gas.

Mine is a working vehicle so more often than it is carrying a load. It's used on sort trips, normally no more than 12 miles and often in heavy traffic.

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Re: Hijet Fuel Economy

Post by Logi on Thu Jan 22, 2015 6:32 pm

My old van was better, i'd reckon high thirties, new van seems like low thirties, old van had 120k, new one has 18k so i reckon PFM is right. 

(or as i tend to drive the newer one harder?)

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Re: Hijet Fuel Economy

Post by HighlyJetted on Thu Jan 22, 2015 7:23 pm

If I drive mine for long journeys gently, I have known to get early 40's in it.

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Re: Hijet Fuel Economy

Post by danielfrisbee on Sun Feb 14, 2016 2:32 am

I took my new Hijet on a trip the last few days from London down to east sussex, (lewes),a couple of small trips there to the seaside etc and then back to London. The fuel gage doesn't work. Anyway, I filled up £30 at £1 a litre before leaving, drove about 130 miles, possibly closer to 120, and then filled it up when I got back to see what I'd used. Cost almost exactly £30 to fill up. To cut a long story short, that's around 19mpg.

19mpg!!???

that's what I'd expect from an old Rolls Royce or something. I did race it a bit, did between 60 and 80 on the motorway, but HighlyJetted says he's getting 30mpg when stamping the pedal.

Any ideas why it would be so low? I'll look tomorrow to see if the petrol tank leaks, but I suppose it might just need servicing..? It sounds fine and is almost silent when ticking over. I'd like to be able to get it up to at least 30mpg.

I'm one of the fools who believed the 60mpg that gets bandied about on hijet ads- silly me--

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Re: Hijet Fuel Economy

Post by HighlyJetted on Sun Feb 14, 2016 10:02 am

Something is wrong with it. Like pretty much every hijet on the market. (some thing actually meaning lots of little things) (and maybe one or two big things)

1.3 or 993?

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Re: Hijet Fuel Economy

Post by PFM on Sun Feb 14, 2016 10:21 am

Noway 60mpg. One of my 1.3's does around 38mpg, the other 32 (different driver). How accurate are your figures though - you say 'about 130 miles, possibly closer to 120', did you not write the start and end mileage down? Was it exactly 30 litres you put in each time?

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Re: Hijet Fuel Economy

Post by Logi on Sun Feb 14, 2016 10:59 am

I get sixty mpg regularly, though I'm absolutely knackered pushing it the last 25 miles....... Wink

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Re: Hijet Fuel Economy

Post by danielfrisbee on Sun Feb 14, 2016 11:02 am

Sorry no, my figures aren't exact. The way I was working it out was to see what it cost to fill up after the trip to get a cash amount for the distance travelled. Not super accurate but definitely a lot lower than 30mpg and I'd say its under 20, though I'll make a note of the millage now, and seeing as the tank is now full at £30 (£1.03 a litre) I can figure it out next time I fill up. It's a 1.3 1999 mpv with 74,000. The temp gage is just above middle so I think that's ok.


Last edited by danielfrisbee on Sun Feb 14, 2016 11:07 am; edited 1 time in total

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Re: Hijet Fuel Economy

Post by danielfrisbee on Sun Feb 14, 2016 11:05 am

Though I hadn't run out of petrol.. And if the tank only holds around 25 litres perhaps that's a clue that the tank leaks? Though presumably it would have dribbled all over the forecourt. Though I didn't look so I guess it could have..

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Re: Hijet Fuel Economy

Post by HighlyJetted on Sun Feb 14, 2016 11:08 am

The most prolific cause of hijet poor MPG, is a leaking petrol tank.

Crawl underneath and check for damp spots on the tank.

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Re: Hijet Fuel Economy

Post by danielfrisbee on Sun Feb 14, 2016 11:20 am

Thanks, yes I'll do that this afternoon -

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Re: Hijet Fuel Economy

Post by danielfrisbee on Sun Feb 14, 2016 2:06 pm

just poked at the fuel tank, no leak that I could find. The van does smell a bit petroly though. Another thing I thought it might be is that the tyres were really flat for the first half of my trip, like 50-60 miles. To the point where the handling was pretty sloppy, however I didn't realise how flat until I picked up four people and it became apparent air was very needed so pumped up to 35 at the front and 45 at the back, handled much more nicely.

Is it possible motorway racing with flat tyres might have sucked all that extra petrol?
Seems a bit odd, but would be a nice and simple diagnosis that's already resolved with the new air..

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Re: Hijet Fuel Economy

Post by HighlyJetted on Sun Feb 14, 2016 2:24 pm

If you do above 70 on the motorway, the fuel economy always sucked on mine. Doing 85/90 was thirsty business.

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Re: Hijet Fuel Economy

Post by maralions on Sun Feb 14, 2016 6:16 pm

Fran does 34-36mpg, a mix between the motorway, usually about 35 miles, and trips around town.
There is a strong smell of petrol quite a lot especially when I've just filled up. I absolutely don't go over the click now to reach a round number... the other day I filled it and parked a little wonky at the Co-op and came back to a dripping cap and a puddle on the floor!

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Re: Hijet Fuel Economy

Post by HighlyJetted on Sun Feb 14, 2016 8:39 pm

Leaking from the cap is very typical.

That's why I sell new caps on ebay Wink

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Re: Hijet Fuel Economy

Post by maralions on Sun Feb 14, 2016 9:00 pm

I see... and would you have a link for such a cap?

Also... can you recommend a good (but cheapest!) thermostat?

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Re: Hijet Fuel Economy

Post by HighlyJetted on Sun Feb 14, 2016 9:27 pm

I only use these thermostats as I have had problems with Circoli ones, do not use Circoli!! http://www.ebay.co.uk/itm/Nipparts-J1536001-NEW-Thermostat-Applause-Charade-Sportrak-Hijet-Terios-1300cc-/171691398566

But I have ran out, I bought about 40 from Nipparts europe, as that was the minimum order quantity! I only really wanted 1 for a job, but I knew they would sell slowly. Probably only made about £2 each on them, then there is the ebay fees costs, and the packing costs, invoicing and taking them to the post office. I won't be selling any more.

Fuel caps here:- http://www.ebay.co.uk/itm/Daihatsu-Hijet-Piaggio-Porter-Locking-Fuel-Filler-Cap-BRAND-NEW-Fuelcap-Keys-/172084139406?hash=item281103958e:g:iBoAAOSw-jhULA3C

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Re: Hijet Fuel Economy

Post by maralions on Mon Feb 15, 2016 10:05 am

Would this one be ok?

http://www.ebay.co.uk/itm/Nordic-Thermostat-Genuine-OE-Spec-Cooling-System-Replacement-/351419672268?fits=Model%3AHijet&hash=item51d23ea6cc:g:ligAAOSwo3pWcArH

Sorry for all the questions, don't want to get it wrong and I can't find another Nipparts one!

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Re: Hijet Fuel Economy

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