Noun
The conversion of a petrol engine to run on diesel fuel
The replacement of petrol engines with diesel engines
(rail transport) The replacement of steam (or, more rarely, electric) locomotives with diesel locomotives.
Source: en.wiktionary.orgInitially, SRT ordered 30 Davenport Loco (500 HP type) from the USA to further the plan for Dieselization in 1952 (with Bobo bogey arrangement). Source: Internet