Fuel economy

[emax]

Last night my son and I had a 30km drive to an appointment, my son drove. We rode country roads, some narrow, winding, uphill and downhill, but also four-lane sections, an overall mix. With average traffic in the Odenwald where we live.

It was his first ride in the Grenadier and he didn't attach much importance to low fuel consumption. Just a relaxed ride. However, he is a really good driver.

It came to 10.2 l/100km = 27.7 mpg / uk.

 

[emax]

My Hilux did around 25/26 mpg (native) but with it's fitted 'chip' I get around 37 mixed and over 40 on motorways (9.5ltr/100km native and 6ltr/100 on motorways).

Hopefully you don't have to stop every 20 km to dump a liter of fuel.

 

[Miki]

Wow, what chip is that?

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I first discovered the benefits with my companies Passat and then in an Audi TT (same engine).
The chipped, VAG, 2ltr diesel offers around 10 to 15mpg improvement on short(ish) runs and around 20 on long/motorway.

Taking it easy down the M74/M6 I can get approaching 70mpg from the Audi TT Quatro (driving like grandad) and above 43 in the Hilux.
Those figures drop if I get a little heavy with the right foot or i'm towing with the Hilux, but in general I have been more than impressed with the chips performance and overall cost savings.
I used to drive regularly to Rambouillet in France, a distance of around 700 miles so the saving wasn't inconsequential.

 

[Tomdoc]

Miki that's very interesting. Here Grenadier chip is the diesel version. I wonder how Ineos would take to this at servicing? They have certainly been quick off the mark - also do a petrol version.

 

[Arkaig]

PETROL AND DIESEL TUNING BOXES - clearly these are modifications to the vehicle and at least in the UK require to be notified to one's insurer. What are the insurance company attitudes to the fitting of these types of devices?

 

[YellowLab]

So it's double bullshit. Wrong units and wrong numbers assigned. You're right.

Will adding 2xBS 'double bullshit' turn into a positive - like negative numbers do?

 

[Cheshire cat]

PETROL AND DIESEL TUNING BOXES - clearly these are modifications to the vehicle and at least in the UK require to be notified to one's insurer. What are the insurance company attitudes to the fitting of these types of devices?

There are sound reasons for tuning a vehicle. Taking the UK as an example. High grade fuel always available, temperate climate, reasonable roads. The engine does not face the stresses of deserts and varying fuel quality. In return, it is not unreasonable to access a bit more power and torque or simply to smooth out the power delivery. All without compromising the longevity of the engine.

 

[Arkaig]

There are sound reasons for tuning a vehicle. Taking the UK as an example. High grade fuel always available, temperate climate, reasonable roads. The engine does not face the stresses of deserts and varying fuel quality. In return, it is not unreasonable to access a bit more power and torque or simply to smooth out the power delivery. All without compromising the longevity of the engine.

What you suggest may well be so, but would nevertheless negate any INEOS warranty - my comment related to a notifiable insurance modification that would otherwise void cover under a motor insurance policy.

 

[emax]

There are sound reasons for tuning a vehicle. Taking the UK as an example. High grade fuel always available, temperate climate, reasonable roads. The engine does not face the stresses of deserts and varying fuel quality. In return, it is not unreasonable to access a bit more power and torque or simply to smooth out the power delivery. All without compromising the longevity of the engine.

That's exactly what sensors are for and modern motor management takes into account.

 

[Tazzieman]

What you suggest may well be so, but would nevertheless negate any INEOS warranty - my comment related to a notifiable insurance modification that would otherwise void cover under a motor insurance policy.

I would speak to the insurance company first.
Not that I'm likely to need such a mod.
But it might increase the premium , and subsequent owners would have to disclose (assuming they knew).
As for IA warranty, who knows?
Read the small print!

 

[Miki]

Miki that's very interesting. Here Grenadier chip is the diesel version. I wonder how Ineos would take to this at servicing? They have certainly been quick off the mark - also do a petrol version.

It's not a new engine is it ?
The B58 (or B57) BMW engine has been around for a while so it's a no brainer really.

PETROL AND DIESEL TUNING BOXES - clearly these are modifications to the vehicle and at least in the UK require to be notified to one's insurer. What are the insurance company attitudes to the fitting of these types of devices?

As the 'chip' is not a permanent modification (like a remap for example) then it's up to you.
I told my insurers I had a chip and they were really not interested, they thanked me but said they were only really interested if the ECU was 'remapped' and that this would not increase/affect my premium.

The aim of the chip is to increase fuel economy, offer better drivability and control and increase the torque for better towing.

I would be very surprised this type of modification would 'negate any INEOS warranty'.
Can you expound on that @Arkaig ?
What do you think the chip could do to your BMW engine that would damage it ?

 

[Cheshire cat]

What you suggest may well be so, but would nevertheless negate any INEOS warranty - my comment related to a notifiable insurance modification that would otherwise void cover under a motor insurance policy.

As I mentioned, always worth making sure insurance company is aware. Doesn’t always seem to affect the insurance premiums which is good news. Currently I have no plans with regard to mapping my vehicle.

 

[255/85]

I would be very surprised this type of modification would 'negate any INEOS warranty'.
Can you expound on that @Arkaig ?
What do you think the chip could do to your BMW engine that would damage it ?

Interjecting here that...

TANSTAAFL

 

[bemax]

Yesterday I tried to drive in a efficient way on the Autobahn. I set the cruise control to 86 km/h to get the speed of a normal truck (83 gps speed) and went off to my meeting. It is possible to get a 7 in front of the comma if you set the cc to 70-80 km/h. But then it is no fun as all trucks had to overtake.
The Grenadier can be driven efficient if it is in the 8th gear at lowest rpm and you do not have to accelerate. Braking is strictly forbidden as it kills precious kinetic energy…
By the way 8.0 litres per 100 km means 29.4 miles/US gallon and 35.3 miles/UK gallon
(Setup: Fieldmaster diesel, no winch, rocksliders, steps,rai or roof rack. Empty car)

 

[Tazzieman]

Frugal!

 

[grenadierboy]

Yesterday I tried to drive in a efficient way on the Autobahn. I set the cruise control to 86 km/h to get the speed of a normal truck (83 gps speed) and went off to my meeting. It is possible to get a 7 in front of the comma if you set the cc to 70-80 km/h. But then it is no fun as all trucks had to overtake.
The Grenadier can be driven efficient if it is in the 8th gear at lowest rpm and you do not have to accelerate. Braking is strictly forbidden as it kills precious kinetic energy…
By the way 8.0 litres per 100 km means 29.4 miles/US gallon and 35.3 miles/UK gallon
(Setup: Fieldmaster diesel, no winch, rocksliders, steps,rai or roof rack. Empty car)

Bemax

This was the usual expected speed for the W460 G Wagen when launched in 1979, through most of the 80's.

It was expected that a 4WD would be driven similar to a light truck (at least in Germany)

 

[Morle]

I have now driven about 3000 km in the Fieldmaster petrol version, 2000 long distance and about 1000 short distance, my average consumption was 17l/100km.

 

[gkhaldi]

I have now driven about 3000 km in the Fieldmaster petrol version, 2000 long distance and about 1000 short distance, my average consumption was 17l/100km.

Without a trailer? Loaded? Seems high on consumption compared to what I'm getting over 2.000km (mostly 100-300km stretches) at an average of 12.3l/100km

 

[bemax]

Without a trailer? Loaded? Seems high on consumption compared to what I'm getting over 2.000km (mostly 100-300km stretches) at an average of 12.3l/100km

You own a petrol as well? My diesel Fieldmaster takes short to 12 liters/100 km as an average (including towing!)

 

[gkhaldi]

You own a petrol as well? My diesel Fieldmaster takes short to 12 liters/100 km as an average (including towing!)

Yup. A petrol Trialmaster with 2K on the odometer. I drive her gently and once engine, tranny and transfer case are good and well up to temperature I push her a bit so that she doesn’t end up with a lazy engine.

My average consumption is around 12.3. Next month I got a 3K trip over 4 days so I’ll get a better idea how she performs on longer trips. End of the year I have an 11K trip planned over 3 weeks with 5K off road. X fingers