YOU SAID:
engines require oil and petrol to function
INTO JAPANESE
エンジンが機能するにはオイルとガソリンが必要です
BACK INTO ENGLISH
Engines need oil and gasoline to function
INTO JAPANESE
エンジンが機能するにはオイルとガソリンが必要です
BACK INTO ENGLISH
Engines need oil and gasoline to function
That didn't even make that much sense in English.