Motorex Prisma ZX 75W-90 transmission oil, 1l
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Gear oil change:
A brief discussion about gear oils:
Specifications of gear oils
Viscosity
The specification SAE (Society of Automotive Engineers, USA) is used to evaluate the viscosity properties of gear oils. This standard is employed for classifying oils into 4 winter grades, marked by a number and "W" (from English Winter), and 5 summer grades marked by a number.
Winter grades: 70W, 75W, 80W, 85W
Summer grades: 80, 85, 90, 140, 250
If only one grade is used in the designation, it means that it is a monograde oil (summer or winter). When a combination of summer and winter grade is used (e.g., 80W-90), it is a multigrade oil, or all-season oil. Unlike motor oils, monograde oils are more commonly required by manufacturers.
Performance categories
The classification API (American Petroleum Institute, USA) is used for marking the performance category of gear oils. The designation of the performance class consists of the letters "GL" (from English Gear Lubricant) and a number indicating the performance level, of which there are six.
The following four performance classes are currently in use:
GL-3 - low-additive oils for manually shifted transmissions under medium load
GL-4 - highly additive oils primarily intended for manually shifted transmissions and lightly loaded hypoid gears
GL-5 - oils designed for highly loaded hypoid gears, operating under the most severe conditions, subjected to variable shock loading
GL-6 - oils for hypoid gears operating in extreme conditions. They are still very rarely used.
Comparison of viscosity classifications of SAE for gear oils and motor oils
Viscosity classes of gear oils according to SAE J306A
How to choose the right gear oil?
When choosing a gear oil, the same principles apply as when selecting motor oil.
1. The first principle when choosing a gear oil is to follow the manufacturer's instructions for the motorcycle, contained in the manual for each vehicle. Only the manufacturer of the transmission (vehicle) can responsibly say which oil can be used. Practically no manufacturer recommends a specific brand of oil (it contradicts the competition laws in the European Union). Transmission manufacturers (of cars) recommend oils according to the so-called performance specification, e.g. API GL-4, API GL-5, and viscosity specifications SAE, e.g. 75W, 80W-90.
2. For the recommended oils, the replacement intervals are then specified (usually 10,000 km or 1 year).
3. If you do not have a manual for the vehicle, ask the manufacturer (at the Czech importer headquarters) of the vehicle. Remember, the vehicle manufacturer does not recommend a brand of oil but only the performance and viscosity specification.
Datablad
- Manufacturer:
- Motorex
- Type of consumable material:
- Oils
Särskilda referenser
- ean13
- 7611197050315