1996 Buick Century Owner's Manual - Page 76

THIRD (3) or DRIVE (D): If your automatic transaxle does not have AUTOMATIC OVERDRIVE (@), Here are some times you might choose THRD (3) or DRIVE (D) instead of AUTOMATIC OVERDRIVE (a): DRIVE (D) is for normal driving, at all speeds, in most street and highway situations. If your automatic transaxle has overdrive, THIRD (3) is also used for normal driving, however, it offers more power and lower fuel economy than AUTOMATIC OVERDRIVE (a). - When driving on hilly, winding roads. - When towing a trailer, so there is less shifting between gears. - When going down a steep hill. SECOND ( ) This position gives you more power but 2: lower fuel economy. You can use SECOND (2) on hills. It can help control your speed as you go down steep mountain roads, but then you would also want to use your brakes off and on. 2-18