Use this tag for question about cars, trucks and other road transport.
Road vehicle with four wheels and an engine intended to be a means of transport.
Questions tagged [road-vehicles]
190 questions
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Should we heat up engines before driving a car?
Possible Duplicate:
Is running the engine for five minutes before driving beneficial for the car?
My wife, her dad, and my dad says so.
They said that before you drive a car, you need to turn on the car for a few minutes, let the engine heat up,…
user4951
3
votes
1 answer
Do modern diesel cars emit fewer fine dust particles than they suck out of the air when driving in a big city?
Winfried Stoecker writes:
Macht die Augen auf und lasst Euch den Dieselmotor nicht ausreden! [...] Die modernsten Versionen emittieren im Regelbetrieb weniger
Feinstaubpartikel als sie mit der Ansaugluft in einer
durchschnittlichen deutschen…
Christian
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Did hundreds of thousands of people die due to lack of seat belts in the period before they were made mandatory?
In a recent interview, Tesla founder Elon Musk gives a historical reference as example of slow government reaction to public harm:
At 8m15s:
Take something like seatbelts. It was known for, I dunno, a decade or more that seatbelts would have a…
J. Doe
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Is there more than one registered motor vehicle for every adult in the US?
According to the US Census Bureau's table of estimated population as of July 1 each year, there were 268.3M people 14 years of age or older, including 260.1M people 16 years of age or older, including 251.6M people 18 years of age or older, as of…
WBT
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Does the Sion electric car solar cells provide enough charge for up to 30km travel per day?
Sonomotors have an electric car, the Sion. They claim that this car use its own solar-cells to charge the batteries in one day sufficient to drive up to 34km.
Their information sheet says:
Thus, under ideal conditions, up to 34 kilometers of …
james
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2 answers
Is this accident footage authentic?
This video about texting and driving shows footage of a car crash.
Many posters on YouTube claim that it is "obvious" that the crash is fake. It is not obvious to me either way.
Is this footage from an actual crash?
Martin Argerami
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Does Tesla's 70 kWh battery have 63 kg of lithium and if so, why?
I have found information that Tesla's 70 kWh battery pack has 63 kg of lithium: https://electrek.co/2016/11/01/breakdown-raw-materials-tesla-batteries-possible-bottleneck/
Considering there's only 13 million tonnes of lithium reserves, this would…
juhist
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Do I need to wait for my car to warm up before driving off?
I heard many times from friends that after starting up the engine of a car you have to wait a few minutes for it to warm up before driving off.
I also heard that this only applies to engines that include a turbo intercooler of some sort. Is there…
John Demetriou
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How many pedestrians die a year in NYC from being hit by a car?
In researching my other question, I found a hard time getting all the sources of numbers of deaths to agree with each other. Some of the numbers I found are as follows:
168 pedestrians and 10 cyclists killed in 2013 from…
ike
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Do car theft victims have to pay around 1,000 USD to have their cars returned in the US?
This Yahoo! news article says:
The 30-year-old’s 2000 Monte Carlo was stolen from in front of his
mother’s house last summer. Finally, several months later, Williams
was told that his car had been found and was available to him at
Bobby’s…
Franck Dernoncourt
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Radiation dangers with GPS/navigation cellphone apps
From Wikipedia:
Some national radiation advisory authorities... have recommended measures to minimize exposure to their citizens... Do not use telephone in a car without an external antenna
I'd wager most people take this advice to mean don't talk…
t0x1n
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Did Biden use 85 cars in a motorcade in Rome?
The Daily Mail reports US President Joe Biden's administration used a particularly large motorcade in the streets of Rome recently.
President Joe Biden was criticized for his use of a slow moving, 85-car motorcade in Rome ahead of UN climate change…
Panda
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Did Dr Ulrich Mellinghoff Suggest 140Km/h would be a safer limit on Australian roads?
The description below has been shared by the Facebook group Sensible Speed Limits Australia which claims that Dr Ulrich Mellinghoff suggested 140km/h would be a safer speed limit in Australia.
Deaf ears of government
Back in 2010, a…
user1605665
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Is travelling by car better for preventing climate change than by plane?
From the Fairfax website traveller.com.au: Tourism and environmental damage: How travellers are ruining the world:
Some friends of mine have stopped travelling. Pretty much, anyway.
They're refusing to fly anywhere, unless they're going to be…
Andrew Grimm
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Is it best not to use Reg 85/86 petrol at an elevation in place of 87?
There seems to be quite an amount of confusion over whether or not it's necessary to follow the manuals and fill up with 87 gasolene even at an elevation where 86 and 85 petrol is being sold as Regular.
When the discussion comes to whether there's…
cnst
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