noun, noun or participle which takes 'suru', transitive verb
downshift; change to a lower gear
Wasei-eigo from English 'shift down'. Used for vehicles, especially manual transmission cars.
wasei-eigo (Japanese-coined English), from shift down
急な坂道ではシフトダウンしてエンジンブレーキを使う。
On a steep slope, I downshift and use engine braking.
カーブの手前でシフトダウンするのが基
It's basic to downshift before a curve.