I bought this car about a month ago and I'm still learning basics about it. The gear indicator has two settings for Drive - marked by a small dot and a large dot. What's the difference? Driving around town I find the small dot setting is the smoothest shifting option.
The green dot will allow it to shift 1-2-3, the white dot skips first and starts in second then shifts to third. The idea is that the white dot is for starting out when it's slippery. So, given that you're probably not driving on ice or mud you probably want it on the green dot.
At that time all cars with 3 spd Trans had two ranges Small dot on the fords were for city driving which not many used. The large dot was for highway driving it started in low and shifted through all 3. Some cars were marked D2- drive.