Tesla Model S

Highway etiquette states that slower moving vehicles stay to the right. Those slowpokes may want to stay off California highways altogether this Friday.

That's because Tesla Motors has declared October 19 as "Supercharging Day," when the electric-vehicle maker's first six fast chargers will be opened to the public, according to Hybrid Cars. Tesla announced the news via an e-mail to car owners.

The company's Superchargers, which fact charge at 90 kW and 440 volts, can put 150 miles into a top-of-the-line Model S 85-kWh battery in about a half-hour, or about as long as it takes from a Model S driven by a deranged owner to get from Palo Alto to San Francisco.

Earlier this month, Tesla said it's getting $10 million from the state to help prepare its Fremont, CA, factory to one day start making the Model X SUV there. That model is expected to see the light of day in 2014 and will be Supercharger-capable.