TY - JOUR AB - The use of Heavy Duty oils in diesel engines, particularly those engaged upon arduous duties, is acknowledged generally to be an economical procedure. The reduction of engine deposits such as piston varnish and lacquer, the freedom of piston rings and general engine cleanliness are the principal items that provide longer periods between engine overhauls resulting in reduced maintenance costs. VL - 2 IS - 6 SN - 0036-8792 DO - 10.1108/eb052059 UR - https://doi.org/10.1108/eb052059 PY - 1950 Y1 - 1950/01/01 TI - SPECIAL HEAVY DUTY OILS T2 - Industrial Lubrication and Tribology PB - MCB UP Ltd SP - 26 EP - 27 Y2 - 2024/04/23 ER -