1984 K5 Blazer 4x4 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.

Woodward Dream Cruise Photo Gallery | Classics and American muscle

The 2022 running of the Woodward Dream Cruise just went down, and we were there from morning to evening drinking in the sweet sights and pre-emissions exhaust fumes. Yes, it’s a little smelly on Woodward Ave. this time of year. Just like always, the Dream Cruise invites all comers to cruise their machines on Woodward from Ferndale, MI to Pontiac, MI. Everybody is invited, but the original intent of the Dream Cruise was to highlight classic American muscle cars. YouÂ’ll see plenty of those in our mega gallery above, but weÂ’ve sprinkled it with a bunch of other vehicle types, such as modern muscle and other intriguing American vehicles. Similar to years past, though, sometimes the classics arenÂ’t the most entertaining thing to look at on Woodward. ThatÂ’s why weÂ’ll have other mega galleries coming soon, highlighting the weird cars and (great) dogs of the Cruise, all the imports and exotics you can imagine and a special one for all the trucks of Woodward — perhaps even more so than in years past, the truck population on Dream Cruise day was quite high. Click through above to see all the classics you wouldÂ’ve seen had you been roadside on the day of the cruise. And if you missed this yearÂ’s event, make sure you check out what happens next year. You wonÂ’t be alone, as itÂ’s estimated that over 1 million people attend the Dream Cruise to either watch from the side of the road or to sit in the most glorious traffic jam in the world. Related video Featured Gallery 2022 Woodward Dream Cruise classics and American muscle View 160 Photos Design/Style Buick Cadillac Chevrolet Chrysler Dodge Ford GM GMC Hummer Jeep Pontiac RAM Classics Woodward Dream Cruise

OnStar to offer 90-day driving assessment, possible insurance discount

General Motors has announced a brace of new features for OnStar, two of which could help you save money assuming you're willing to sign over some (more) personal details. The first is a driving assessment program in which OnStar takes note of certain driving parameters for 90 days, then provides the driver feedback on their driving, both individually and when compared to other drivers in the program, as well as driving tips. Think of it as OnStar's ICE version of the Nissan Leaf's CARWING feature that compares how efficient your electric driving is compared to other BEV drivers. In this case, though, certain drivers will have the chance to share their assessment with Progressive Insurance, and if the numbers are right they might get a "driving-based" discount from the insurance company. The assessment program is voluntary, and requires opting in. It will be available this summer on all new GM cars and some GM vehicles back to 2013. In case this sounds like Big Brother, let's not forget that Big Brother is already here and moved in so long ago that he's a member of the Kiwanis club and is hosting neighborhood block parties. Progressive already has a million enrollees in a program called Snapshot that tracks OBD II data to offer usage-based insurance to provide annual pricing based on how much you drive your car, with discounts of up to 30 percent. The OnStar effort is just another way to do that. The second feature is proximity offers through AtYourService, which notifies drivers to deals and information on their driving route and provides coupons from RetailMeNot and Entertainment Book. Beyond that, a deal with Priceline will let OnStar agents book hotels for you starting this year, there's a tie-in with Dunkin' Donuts, too, but we're fuzzy on those benefits, and third new feature lets Chevrolet owners know when certain parts need replacing. News Source: Detroit NewsImage Credit: AP Photo/Carlos Osorio Chevrolet GM Technology