![]() The only thing that remains to be determined at a later date is reliable fuel consumption data, our sample being fat too small. However, in all honesty, it was enough to get an idea. Count the time needed for snapping some photos, and that leaves a preciously short test drive. I should mention that our time was limited to one hour with the vehicle. We'll see what the fuel economy is like on the road once sufficient real-world testing can be done. The work that's been done behind the scenes is aimed at making the Rogue the most fuel-efficient SUV in its class, and that's the goal that's been achieved - at least on paper. It’s necessary to explain what’s been done on the technical level, because the arrival of a new engine in the second year of marketing of a model is not trivial. In addition, improvements to the oil pumps mean that in all circumstances (at low or high speeds), the transmission's “gear” changes are more efficient. Among other things, the company says friction has been reduced by 32 percent. ![]() To go with all this, Nissan has also revised its continuously variable transmission (CVT). These are aimed at improving the engine's vibration isolation. And as for the vibrations that can accompany 3-cylinders, the 2022 Rogue's block benefits from a new mounting system consisting of two lower torsion bars. It's technical, but it does have the potential to improve performance. Then, for their part, new, textured valve lifters reduce friction to improve the block's fuel efficiency. For example, a new high-pressure injection system helps produce better acceleration, as does a stainless-steel cylinder bore wall liner. ![]() To achieve this, Nissan has made a few tweaks to its approach. With this new powertrain, the VC Turbo's technologies focus on three things: acceleration, fuel economy and emissions. Variable compression, which changes from low to high, means that you get maximum pep when you push the throttle, and then optimal fuel economy when you drive smoothly. As a reminder, the VC Turbo offers several advantages on paper.
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