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Fuel Economy

BlockLike said:
Approximate 10mpg improvement on the daily commute compared to when I first bought it just from being less heavy on the throttle.

Also, not using ECO mode.

Not bad
uoEsIHv.jpeg
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Hello Block Like,
Where are you running that from? Is that on the Elgrand directly? Is that your console screen (ICE system) or are you running that on your phone. Only because I can see a mobile signal icon. Wondering what app you are using.
Thanks 🙂
 
CKapasa said:
Hello Block Like,
Where are you running that from? Is that on the Elgrand directly? Is that your console screen (ICE system) or are you running that on your phone. Only because I can see a mobile signal icon. Wondering what app you are using.
Thanks 🙂
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It's on the Elgrand directly. That symbol shows up when you pair your phone over Bluetooth.

It's a Xanavi converted system, which is why the figures are in MPG.
 
Jen&Stimpy said:
How much was the Xanavi system, randomly watched the installation video last night.
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They stopped making them, but they originally cost around £1000 new.

I was lucky and picked one up on eBay for £200. It was a happy accident as the breaker didn't know it was a Xanavi converted unit and I thought I was just buying it as standard.

They're just OEM units with the software changed, so it's a straight swap
 
I'm getting 13mpg on LPG (well that was the calculation chatgpt came up with 😀)
 
I've never really been able to consistently get better than 6.3km / L for mixed driving
 
LPG will always be a lower mpg than petrol as it has to inject more fuel for the same power output.
 
Elgrand2007 said:
I'm getting 13mpg on LPG (well that was the calculation chatgpt came up with 😀)
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LeStempy said:
LPG will always be a lower mpg than petrol as it has to inject more fuel for the same power output.
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Reading the quoted posts together someone who doesn't know about LPG might get the incorrect impression MPG on LPG is much lower than MPG on petrol.

Incorrect because MPG on LPG for our Elgrands is around 10% lower than MPG on petrol, so it isn't much lower at all and the slightly lower MPG on LPG is more than offset by the lower cost of the fuel.

If someone drives an Elgrand and only gets 13mpg on average on LPG they would only get 14.3mpg on average on petrol so are still better off running on LPG.

It still costs me as much to run my 3.5 Elgrand on LPG as it would cost me to run a smaller diesel vehicle that could do 38mpg.

Not that this would matter much to anyone who only drives a fuel miles per year, if you were only to drive 100 miles per year you'd still be paying a lower than average fuel bill if your car only did 1mpg on petrol or diesel.
 
Karl said:
Expect poor economy. Really. I'm not gonna lie to you.

They are a 2 tonne bus with pretty appalling aerodynamics and large engines. They are designed for comfort and luxury, not for cheap motoring.

As a brief run down:

E50 QD32 3.2 Diesel - 26mpg average. 18mpg around the doors. 36mpg on long runs at 55.

E50 ZD30 3.0 Diesel - 28mpg average. 20mpg around the doors. 40mpg on long runs at 55.

E50 VG33 3.3 V6 - 18mpg average. 14mpg around the doors. 28mpg on long runs at 55.

E50 VQ35 3.5 V6 - 16mpg average. 12mpg around the doors. 28mpg on long runs at 55.

E51 VQ25 2.5 V6 - 22mpg average. 18mpg around the doors. 32mpg on long runs at 55.

E51 VQ35 3.5 V6 - 20mpg average. 16mpg around the doors. 30mpg on long runs at 55.

These are worst case scenarios. If you are getting less than this, you have a problem (either with your engine or your right foot). If you go into buying an Elgrand with these figures in mind, then you won't be swearing 6 months down the line when you are on first name terms with every petrol station attendant within 30 miles of your house.
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me driving at 70 got around 5.8l/km which is 13.64mpg. i didnt floor it like crazy. wonder if others also have this or is 20mpg only realistic at 55
 
My long term average is 7.2 km/l. This is over a rolling ten fill ups. Don't rely on the onboard fuel calculator too much, use an app like Fuelly to record long term consumption.
 
kingbee said:
me driving at 70 got around 5.8l/km which is 13.64mpg. i didnt floor it like crazy. wonder if others also have this or is 20mpg only realistic at 55
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Has yours been chpped for mph?
 
kingbee said:
me driving at 70 got around 5.8l/km which is 13.64mpg. i didnt floor it like crazy. wonder if others also have this or is 20mpg only realistic at 55
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That's really bad, on a long run my old e51 is over fueling and get's around 8.7, my new one 10.4 at 70mph
 
Just got better than 6km/L towing my heavy boat over Welsh mountains and doing 65/70mph on motorways... And that was on LPG at 86p per litre.

It costs me less per mile to tow my boat or caravan fully loaded over mountains running on LPG than it costs people who run on petrol to stick to 55mph on a steady motorway cruise ;)
 
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