The Blues Brothers was filmed in the Chicago area in 1979. While most people are familiar with the locations of the scenes filmed at many landmarks within the City of Chicago, there were two scenes filmed in the suburb of West Chicago. After they run out of gas, Jake and Elwood push the Bluesmobile into Lloyd's Tire Center only to find out Lloyd is out of gas too. The Blues Brothers' shenanigans continue while they wait for the fuel tanker truck to arrive. The cache's posted coordinates are at the Lloyd's location. A service station set was built on this vacant lot.
The service station was destroyed during the filming of a scene that didn't make the original release, though it did make the 25th Anniversary Edition DVD. As they drive away, Jake nonchalantly tosses a lit cigarette out of the car window igniting gasoline that had spilled on the ground, thus blowing up the station and the tanker truck.
As the Blues Brothers are waiting for gas, the Chic Lady, played by Twiggy, pulls into Lloyd's. She wrongly thinks Elwood is a service attendant and asks him to fill her Jaguar's gas tank and check under the hood. Elwood chats her up and eventually suggests a rendevous at a motel up the interstate. In a brief shot later in the film, she is seen outside the motel waiting for Elwood to arrive. In reality, the motel is actually in West Chicago and is still operating.
To determine the coordinates, you will need to view the Lloyd's film scene and note these clues.
A = Add 3 to the Number of Hours the tanker truck is late:
BC = Dollar Amount Elwood says Twiggy's gas cost:
D = Dollar Amount Twiggy tipped Elwood:
E = Last digit in Twiggy's licence plate:
N41° AD.4E8
W088° D0.EBC
Please do not park in the motel parking lot as spots are few and are for customers. There is parking very near the cache location, off motel property.