1995 Buick Regal Owner's Manual - Page 216

c 3.1L L82 (Code M) Engine The engine oil dipstick handle is the yellow loop near the frontof the engine. 3.8L L27 (Code L) Engine To Check Engine Oil Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level. T r off the engine and give the oil a few minutes to un If drain back into the oil pan. you don't, the oil dipstick might not show the actual level.