How to say “We were low on coolant, so I topped it up with tap water just to make it to the gas station.” in Japanese
In Japanese
冷却水が減ってたから、とりあえずガソリンスタンドまでもつように水道水を注ぎ足したんだ。
Reikyakusui ga hetteta kara, toriaezu gasorin sutando made motsu yō ni suidōsui o tsugitashita n da.