1. to convert (an engine or vehicle) to run on diesel fuel instead of gasoline
Usage: transitive verb; technical/automotive
2. to equip or modify (a machine or system) to use diesel as its fuel source
Usage: transitive verb; technical

Examples

• The fleet manager decided to dieselize the company trucks to reduce fuel costs.
• Many municipalities are considering whether to dieselize their bus systems.
• The mechanic dieselized the old gasoline engine by installing new fuel injectors.
• Farmers often dieselize their equipment for better fuel efficiency.
• The transportation company dieselized half of its delivery vehicles last year.