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Originally Posted by Phantom
"Where are DRLs required? Laws in Canada, Denmark, Finland, Hungary, Iceland, Norway, and Sweden require vehicles to operate with lights on during the daytime. There are two types of laws. Canada's requires vehicles to be equipped with DRLs. The other type of law in effect in Denmark, Finland, Hungary, Iceland, Norway, and Sweden requires motorists to turn on their headlights if their vehicles do not have automatic DRLs. This kind of law applies to drivers only, and vehicles do not have to be specially equipped. In 1972, Finland mandated daytime running lights in winter on rural roads and a decade later made DRLs mandatory year-round. Sweden's law took effect in 1977, Norway's in 1986, Iceland's in 1988, and Denmark's in 1990. Hungary has required drivers on rural roads to operate with vehicle lights on since 1993. Canada requires DRLs for vehicles made after December 1, 1989. No U.S. state mandates DRLs, although some require drivers to operate vehicles with lights on in bad weather." Questions & Answers: Daytime Running Lights |
Found this from that link that Phantom posted:
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NHTSA estimates that only a fraction of a mile per gallon will be lost, depending on the type of system used. General Motors estimates the cost to be about $3 per year for the average driver.
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I have popup lights so it is not just about alternator load, but Cd increases when lights are open.
In Estonia we also must use headlights all time. Is the DRL same thing as low beam?