Consumables 4.1 Lubricating oil General Modern diesel engines place very high de- mands on the lubricating oil to be used. The specific engine performances which have in- creased constantly over the last few years lead to an increased thermal load on the oil and also the oil is more exposed to contamination due to reduced oil comsumption and longer oil change intervals. For this reason it is necessa- ry to observe the requirements and recommen- dations described in this operating manual in order not to shorten the life of the engine. Lubricating oils always consist of a basic oil and an additive package. The most important tasks of a lubricating oil (e.g.
wear protection, corrosion protection, neutralisation of acids from combustion products, prevention of coke and soot deposits on engine parts) are assu- med by the additives. The properties of the basic oil are also decisive for the quality of the product, e.g. with regard to thermal load capa- city. In principle, all engine oils can be mixed. Ho- wever, mixing of engine oils should be avoided because the worst properties of the mixture are always dominant. The lubricating oil quality has a considerable influence on the life, performance and thus also on the costs-effectiveness of the engine. It basically applies that: The better the lubricating oil quality, the better these properties.
The lubricating oil viscosity describes the flow behaviour of the lubricating oil depending on the temperature. The lubricating oil viscosi- ty has no influence and effect on the lubricating oil quality. Synthetic lubricating oils are used increasin- gly and have advantages. These oils have a better temperature and oxidation stability as well as a relatively low cold viscosity.
Since some processes relevant to the definition of the lubricating oil change intervals are not es- sentially dependent on the lubricating oil quali- ty (such as the entry of soot and other contaminations), the lubricating oil change in- terval when using synthetic lubricating oils may not be increased in relation to the specificati- ons of the ( 27 ) . Biodegradable lubricating oils may be used in DEUTZ engines if they meet the require- ments of this operating manual. 1) Please contact your DEUTZ partner 4 Quality Lubricating oils are classified by DEUTZ accor- ding to their performance capability and quality class ((DQC: Deutz Quality Class). It basically applies that:
with ascending quality class (DQC I, II, III, IV), the lubricating oils are more effi- cient or higher quality. (The suffix (- 02 / - 05) to the quality class designation indicates in what year the classification was made. Lubricating oils according to other comparable specifications can be used as long as they meet DEUTZ requirements. In regions in which none of these qualities is available, please contact your DEUTZ partner responsible. The following lubricating oils are specified for the engines described in this operating manu- al. Lubricating oil change intervals z The intervals ( 27 ) depend on:
Oil quality Sulphur content in the fuel Type of engine application z The lubricating oil change interval must be halved, if at least one of the following condi- tions apply: Ambient temperatures permanently be- low -10 °C (14 °F) or oil temperature be- low 60 °C (84 °F). Sulphur content in the diesel fuel of 0.5 - 1 weight %. Operation with bio-diesel fuel. z If the oil change intervals for vehicle engines are to be carried out according to operating hours, the oil change intervals for built-in en- gines apply. 22 Recommended quality class DEUTZ DQC ACEA API DQC-III E4-99 / E6-04 1) DQC-IV E4-99 / E6-04 DEUTZ lubricating oils DQC III TLX - 10W40 FE Container Order no..
5 litre container 0101 6335 20 litre container 0101 6336 209 litre barrel 0101 6337 Tank store 0101 6338