What is the formula for LPG consumption
Actual consumption: Dacia Duster TCe 100 Eco-G LPG version in the test
The Dacia Duster is one of the most popular small SUVs in Europe. The car has recently been available again in a LPG version. Under the hood of the LPG variant is the (modified) 1.0-liter turbo engine with three cylinders and 101 hp.
This Dacia Duster 1.0 TCe 100 Eco-G is the protagonist of our weekly consumption test this time. On our standard test route from Rome to Forli, he needed 7.65 liters of LPG per 100 km. The LPG Dacia is not one of the best in the category, but it is not a disappointment either. The costs for 100 kilometers with (German) liquefied gas prices currently average EUR 0.57 per liter at EUR 4.36. With a full LPG tank (33.6 liters) we could have covered 439 kilometers with this consumption.
Not exceptionally economical, but low in cost
A comparison of the new 1.0 TCe 100 Eco-G with the previous version suggests itself. The predecessor had a 1.6 liter naturally aspirated engine and needed 7.60 liters / 100 km on our standard route in March 2019. This means that there is practically a tie between the old naturally aspirated version and the new turbo version, although the standard consumption of the 1.0 liter engine is significantly lower. Obviously, the displacement advantage of the 1.0 TCe doesn't matter on our standard route and at the fairly constant pace we drive. You can read more about this below when it comes to consumption in different driving situations.
Two LPG models not available in Germany performed better than the new Duster 1.0 TCe 100 Eco-G in our consumption test: the Opel Crossland X 1.2 LPG (6.45 liters) and the Kia Sportage 1.6 GDi Eco LPG (6.65 liters ). The Dacia Duster 1.5 dCi with diesel engine also consumed only 4.60 liters / 100 km in our test in 2018, which at the current German diesel price (1.09 euros / liter) would amount to 5.01 euros per 100 kilometers - a little more than with the new LPG model.
More driving fun thanks to the 1.0 liter turbo
The tested car has the (Italian) Comfort equipment and some extras such as metallic paint, automatic air conditioning, reversing camera and the comfort package. In Germany, the Comfort version costs 14,037 euros, the comfort package is already included in this country.
The Duster is a spacious, practical trolley that can be used to comfortably transport people and luggage. In addition, there is the lively 1.0-liter turbo, which always pushes well as soon as you get going and is very pleasant to drive. The known weak points are the materials and some elements that could be improved, especially in the cockpit. A sixth gear for the manual transmission would also be useful.
Consumption in different driving situations
The low consumption of the Duster 1.0 TCe 100 Eco-G in typical driving situations is surprising. Due to the lack of an on-board computer, we have calculated the consumption at the pump (using the "from full to full" method). We have calculated the LPG range from the LPG consumption and the LPG tank size. In addition, there is the range thanks to the 50-liter petrol tank. Under all conditions, the small three-cylinder with turbo in LPG operation is more economical than the old four-cylinder vacuum cleaner; it consumes over 30 percent less.
- Mixed operation in and out of town: 6.2 liters / 100 km, 540 km range
- Motorway: 8.8 liters / 100 km, 380 km range
From the official data sheet
|model||fuel||power||Emission standard||CO2 emissions|
|Dacia Duster 1.0 TCe 100 Eco-G 4X2 Comfort||Super / LPG||101 hp||Euro 6d-TEMP-EVAP-ISC||111 g / km in LPG mode, 125 g in petrol mode||6.8 liters LPG / 100 km, 5.5 liters Super / 100 km|
Test vehicle data
Vehicle: Dacia Duster 1.0 TCe 100 Eco-G 4X2 Comfort
German list price (without extras): 14,037 euros (with 16% VAT)
Test date: July 17, 2020
Weather (departure / arrival): clear, 32 degrees / clear, 25 degrees
Total driven: 861 km
Average speed on the Rome-Forlì route: 80 km / h
Tires: Bridgestone Turanza T005 - 215/60 R17
Consumption and costs
On-board computer display: not available
Consumption determined at the pump: 7.65 l / 100 km
Average of these values: 7.65 liters / 100 km
Fuel price: 0.57 euros / liter (LPG)
Fuel costs: 4.36 euros / 100 km
More about LPG:
And this is how we determine the consumption
If you ask a friend about the consumption of their car, they will likely give you a figure that does not claim to be scientific. Perhaps he has read the value from the on-board computer, or he has kept his fuel bills and calculated a consumption from them.
We determine our test consumption in a similar way: It is the mean of the on-board computer value and the consumption determined at the petrol station. The test cars are always driven by Fabio Gemelli from Motor1.com Italy. The journalist often travels from the editorial office in Rome to his home town of Forlì (in Emilia-Romagna) for the weekend.
He deliberately drives the cars sparingly: He stays just below the maximum speed (on the Italian motorway: 130 km / h), avoids sudden acceleration and braking and drives with foresight. The test route Rome-Forlì is around 360 kilometers long and comprises 65 percent Superstrada (motorway-like expressway, speed limit between 90 and 110 km / h), 25 percent Autostrada (motorway, speed limit 130 km / h), five percent Strada Statale (federal road, speed limit 90 km / h) and five percent city traffic.
The Apennines are crossed, so the route also contains gradients. The average speed is usually 70 to 80 km / h. At the end of the route, our tester notes the on-board computer display and calculates (for cars with a combustion engine) the consumption at the petrol pump.
"From full to full" is measured, where full means: Refueling ends with the first click of the nozzle. Then Fabio calculates the mean. However, we calculate the costs based on the German prices (average costs according to ADAC at the time of publication).
For electric cars, we use the on-board computer consumption and an average electricity price of 30 cents per kWh (rounded average price for 1 kWh of household electricity in Germany according to BDEW, as of 7/2019). For natural gas and LPG vehicles, the average price is shown on www.gas-tankstellen.de.
Gallery: Dacia Duster TCe 100 Eco-G (2020)
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