Glide oils are multi-grade oils that, among other things, have added components that reduce friction inside the engine. Gliding oils are based on so-called friction-reducing synthetic oils. It is necessary to pay attention to the fact that this oil was produced by Ford (stands on a container).
Lubricating oil additives - no matter what type - must not be added to either fuel or engine oil.
Application/Viscosity classes
Viscosity or viscosity is classified according to the SAE system (Society of Automotive Engineers), for example, SAE 30, SAE 10, etc. High SAE numbers mean high oil viscosity, low SAE numbers mean low. Depending on the outside temperatures, different oils are required, see fig.
Viscosity, however, does not give any indication of the lubricating properties of the oil. Due to the fact that the areas of use of neighboring SAE classes overlap, slight temperature fluctuations can be ignored. Mixing oils of different viscosity grades is allowed if you need to top up the oil and the outside temperatures no longer match the viscosity grade of the oil in the engine.
Engine oil specification
In principle, only HD oils can be used in modern engines. HD oils are alloy oils whose lubricating properties are greatly improved by the addition of various chemicals. These additives improve the anti-corrosion properties of the oil, improve its resistance to oxidation, in particular, these additives reduce foaming in the crankcase, improve the viscosity of the oil, and improve the cleaning and dissolving properties of the oil. Cleaning and dissolving additives not only reduce the formation of deposits in the engine, they simultaneously have the ability to dissolve deposits, keep them and all other contaminants in suspension, as a result of which all contaminants are removed from the engine during an oil change.
The quality of HD engine oil is classified using the API system (API - American Petroleum Institut). European manufacturers are also guided by this system.
The name of the oil contains two letters. The first letter indicates the area of use: S = service, suitable for internal combustion engines; C = Commercial, suitable for diesel engines.
The second letter indicates the quality in alphabetical order. The following API specification oils have the highest quality: SG - for internal combustion engines and CF - for diesel engines.
Attention! Machine oils offered by manufacturers exclusively as diesel engine oils should not be used in internal combustion engines. There are oils that can be used in both internal combustion engines and diesel engines. In such cases, both specifications are indicated on the container (e.g. SG/CD).
For Ford-Mondeo gasoline engines, SG engine oils meeting API specifications are suitable, for diesel engines, CD oils can be used (or CE/CF), which conform to the API specification. European companies supplying oils additionally specify the CCMS specification. CCMS specifications take into account, in particular, European engine technology and are becoming increasingly important. Oils for gasoline engines, depending on the quality, are assigned CCMC classes G1-G5; diesel engine oils used in passenger cars are assigned CCMC classes PD1/PD2.
For diesel engines, Ford mandates the use of standard CCMC-PD2 oil. This oil meets the API specification CD with additional European requirements.
Oil consumption
Oil consumption in internal combustion engines should be understood as the amount of oil that is consumed as a result of combustion processes. Loss of oil resulting from leakage from the oil sump or from the cylinder head cover must in no case be attributed to oil consumption.
Normal oil consumption is due to the combustion of small amounts of oil in the cylinders and due to the release of combustion products and wear. In addition, the amount of oil decreases under the influence of high temperatures and pressures prevailing in the engine. Vehicle operating conditions, driving patterns and manufacturing tolerances affect oil consumption. In a normal situation, oil consumption is so insignificant that it is necessary to top up (if needed at all) a very small amount of oil during the period of time between the prescribed change.
Oil must be topped up when the level has reached the mark "refill".
Attention! Do not overfill oil above the MAX mark. If too much oil is filled in, then its excess must be drained. Otherwise, the catalyst can be damaged, as unburned oil will enter the exhaust system.
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