2007 Chevy Silverado Crew Cab Ltz Z71 Navigation Dvd Sunroof on 2040-cars

Auto blog

How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

2015 Chevrolet Silverado Custom glitzes up volume model [UPDATE]

UPDATE: The original prices listed in Chevrolet's press release did include destination charging, despite not being specifically called out as such. We've edited the story to reflect this. The Chicago Auto Show's reputation as the home of special edition debuts grows stronger today, as Chevrolet is complementing the news that it'd unveil the Silverado Midnight Edtion and Colorado GearOn special editions in the Windy City with the debut of the Silverado Custom. And yes, it's different than the higher-spec Custom Sport that debuted just last month in Detroit. What's so custom about the Silverado Custom, you ask? Well, not a whole lot. The new truck is based on the popular Silverado LS Double Cab, and adds, among its most noteworthy features, a set of 20-inch, five-spoke wheels. From there, chrome is the order of the day, with shinier front and rear bumpers, mirror caps and door handles. The top portion of the front bumper, which is finished in black plastic on the standard LS, is matched to the body color on the Custom model. Standard LS interior features, like the 4.2-inch MyLink system with 4G LTE wireless internet, 40/20/40 cloth front seats, remain in place on the Custom, while it's a similar story with the powertrain. Choices below the sheetmetal will force buyers to choose between a 5.3-liter V8 or a standard 4.3-liter V6, and two- or four-wheel drive. Chevy is pricing a V8-equipped Silverado Custom 4x2 at $33,820 (including $1,195 in destination charges). Adding four-wheel drive brings the price up at $37,800, although as we said, selecting the 4.3-liter V6 will yield a more affordable Custom. Check out the full press release on the newest member of the Silverado clan, available below. 2015 Silverado Custom: Back to Basics, with Style $33,820 starting price for a well-equipped double-cab V-8 CHICAGO – Chevrolet takes aim at the heart of the pickup market with the Silverado Custom, which offers Chevy Truck capability and dependability in a stylish package, priced within reach of many truck customers. "The economic recovery has led to booming sales of high-end pickups like the Silverado High Country," said Sandor Piszar, marketing director for Chevy Trucks. "But there are also millions of customers in the heart of the market who want a great looking, well-equipped truck at an affordable price.

Submit your questions for Autoblog Podcast #323 LIVE!

We're set to record Autoblog Podcast #323 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #323
Lamborghini Veneno