Re: Enough about wheels already! (MenardVolvo)
6J x 15 x 20 is probably what you'll find on a 15" wheel on a 240.
6J is the width (6 inches)
15 is the diameter (15 inches)
20 is the offset (20mm, hub face is offset 20mm from the center line of the wheel).
740 alloys will be 6J x 15 x 25, and those will work (5mm difference in offset is no problem. 20mm+ difference IS a problem, and that's what you'd find on FWD Volvo wheels).
6J x 15 x 20 is probably what you'll find on a 15" wheel on a 240.
6J is the width (6 inches)
15 is the diameter (15 inches)
20 is the offset (20mm, hub face is offset 20mm from the center line of the wheel).
740 alloys will be 6J x 15 x 25, and those will work (5mm difference in offset is no problem. 20mm+ difference IS a problem, and that's what you'd find on FWD Volvo wheels).