Chicago businessman Willie Wilson's gas giveaway is back at stations across the city Thursday morning, this time continuing until $1 million is spent.
After the first giveaway caused heavy traffic on certain roads in Chicago, officials in the city and suburbs have created rules to ensure the event runs smoothly.
Here's what you should know before Thursday:
When does the gas giveaway begin?
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At gas stations in Chicago and several surrounding suburbs, vehicles can begin lining up at 7 a.m. Officials noted, however, that cars may not start lining up prior to 7 a.m.
How will I keep my spot in line?
At city locations, each vehicle will receive a sticker indicating their position in line, the Office of Emergency Management and Communications said. All vehicles must also have a sticker to receive free gas.
Traffic Control Aides and the Chicago Police Department will send officers to each participating location to assist in the flow of traffic, as Wilson's first giveaway last week led to major jams near a number of citywide gas stations.
For more information on traffic patterns and rules, click here.
How much gas can I use?
Each vehicle can receive up to $50 worth of gas, OEMC said. Locations can expect up to 400 cars for an estimated four to five hours.
How long will the giveaway last?
In partnership with approximately 50 gas stations around the Chicago area, Wilson said he will offer drivers free gas until his $1 million is spent.
Officials said the giveaway is expected to last hours at most gas stations.
Where can I get free gas in Chicago and suburbs?
The below list of participating gas stations continues to change and reflects the most recent information available. Here are the latest locations:
Amoco – 4401 West Roosevelt Road
Amoco – 7210 North Clark
BP – 342 East 35th Street
BP – 3955 North Western Avenue
BP – 4401 West 55th Street
BP – 7601 South Chicago Avenue
Citgo – 1345 North Pulaski
Citgo – 5103 West Madison
Citgo – 5150 West Chicago Avenue
Citgo – 6700 South Cottage Grove
Clark – 1201 West 87th Street
Clark - 4300 S. Union
Gulf – 9901 South Halsted
Marathon – 340 South Sacramento
Shell – 5230 South Western Avenue
Shell – 6129 West North Avenue
Shell – 6434 West Archer
Super Save – 48 East Garfield Boulevard
Super Save – 9452 South Cottage Grove
Super Save – 11100 South State Street
BP – 1601 Oak Park
BP – 17th & Bataan
Citgo – 11901 South Marshfield
Mobile - 431 W. Lincoln Highway
BP – 5201 West Cermak Road
Country Club Hills:
18280 South Pulaski
Exxon Mobil – 1421 East Sibley Boulevard
Mobil – 1950 Green Bay Road
BP – 15857 South Halsted
Shell – 4555 North Nagle
BP – 17450 Kedzie
Falcon – 8702 South Roberts Road
Mobile – 1101 North LaGrange Road
Super Save – 101 West Madison
BP – 1309 North 25th
BP – 5548 West 159th Street
BP – 11040 South Pulaski Road
Shell – 2401 Lincoln Highway
Shell – 385 Sauk Trail
Citgo – 15221 South Halsted
Citgo – 13801 South Halsted
Shell – 2474 Thatcher
GoLo – 4005 West 135th Street
Mobile – 9401 West Higgins
Phillips – 9340 Irving Park Road
Shell – 3901 South Harlem
Amoco – 1700 North Mannheim
BP – 11201 West Cermak Road