Test was performed at the legs Saint-Petersburg – Moscow – Saint-Petersburg round trip. Scania was loaded by container trailer with 40’ container and 3 ton load inside at first leg and no load while coming back. Outside temperature 0…3 degrees, trip period 11-13.12.2014, trip full length 1462km
Client company representative was present in cockpit throughout all trip. At the same time similar diesel only Scania equipped with remote fuel metering system performed the same trip.
Dual-fuel Scania was fueled in full before the start. Diesel fuel consumption was measured using fueling stations meters, CNG consumption – using CNG fueling station meters. The rest of diesel and CNG was measured at the end of the trip by fuel level in the tank measurement and press gauge respectively.
Diesel fuel cost was 31,15 ruble per liter, CNG cost varied from 13,6 rubles per nm3 to 14,90 rubles.
Test results ( substitution rate – 62%, financial economy – 22% ):
| Dual-fuel Scania | Diesel-only Scania | |
|---|---|---|
| Diesel fuel consumption, Liters | 185 | 438,6 |
| Diesel fuel expenses, Rubles | 5762 | 13662 |
| CNG consumption, nm3 | 338,9 | – |
| CNG expenses, Rubles | 4816 | – |
| Fuel total expenses, Rubles | 10578 | 13662 |
| Fuel total expenses, Rubles | 10578 | 13662 |
| Diesel fuel consumption per 100 km, Liters | 10,8 | 30 |
| CNG consumption per 100 km, nm3 | 25,2 | – |
One of the fueling station at the middle of the trip charged 170 bar instead of 200, so we became out of CNG while going back and 122km we went using diesel only. So clear dual-fuel result would be better even.