1999 Nissan Frontier Xe King Cab Auto 4cyl on 2040-cars

Auto blog

Recharge Wrap-up: Honda releases "Green Dealer" Guide, Tesla's China president steps down

Honda has released its "Green Dealer" Guide to the public. The guide, which is used to outline ways for Honda and Acura dealerships to be more environmentally responsible can also help other businesses take the same steps to green up their practices, save energy and even save money in the process. The guide, which ranks dealers based on a points system, provides incentive to dealerships to implement the environmentally practices, but it also helps Honda assert itself as a leader for green business. Read more at Automotive News or in the press release below. Nissan Leaf owners in the UK love their car, and aren't looking back at their fossil-fueled past. According to a survey by Nissan, 93 percent use the EV as their main family vehicle. 89 percent report saving money driving, 64 percent prefer it to driving a conventionally powered car and 95 percent would recommend the car to a friend. Most said they wouldn't go back to a gas or diesel car. One owner even gave up his Aston Martin for a second Leaf so he and his wife wouldn't argue over who got to drive the EV to work each day. That's love. Read more at Next Green Car and at Hybrid Cars. Renault has outlined its future sustainable mobility plans, including two pieces of technology going into production cars soon. Renault will put a smaller, more efficient electric motor into production, as well as a three-cylinder dual-fuel gasoline/liquid petroleum gas engine. The HYDIVU prototype will help Renault research mild hybrid technology for light commercial vehicles. The VELUD project will look into making the last mile of urban deliveries more sustainable. Renault is also testing a two-cylinder, two-stroke diesel engine for small vehicle platforms. Read more in the press release below. Tesla's China president has resigned. Veronica Wu had been in charge of the company's operations in China for the past nine months, and with her leaving the company, Tom Zhu will step into the role. Jochen Siebert of Shanghai-based JSC Automotive Consulting says that, "Tesla counts on China as one of their main drivers of growth after California, and it might have been more difficult than they thought." Tesla states it is still "confident in the Chinese market," where it has sold the Model S since April. Read more at Bloomberg.

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.

2013 Nissan Pathfinder: March 2013

Over the past few months, we've talked a lot about how our long-term 2013 Nissan Pathfinder functions as a daily-driver, long-hauler and all-weather warrior. And so far, it's earning high praise from most of us for being a well-rounded, pleasant vehicle in these regards. But the vast majority of people who actually go out and buy a Pathfinder will do so because of its people-and-stuff-carrying abilities. Nissan specifically engineered the new Pathfinder to be a softer, more widely appealing crossover than the sort of rugged SUV that it was before, and in doing so, the company is hoping its new CUV will find homes in the garages of many American families.
We needed to get some family impressions of the new Pathfinder, and fast.
Thing is, many of us Autobloggers live the kid-free life - at least that's true of most of us in the Detroit area where the Pathfinder currently resides. We have no doubts that the Pathfinder will get a proper family road trip workout from west coast editor Michael Harley after it shuffles over to the left side of the country, and it might also do a jaunt to North Carolina this summer with executive editor Chris Paukert and his family before it leaves the area, but in the meantime, we needed to get some family impressions of the new Pathfinder, and fast.