Motul Gear 300 LS 75W-90 transmission oil, 1l
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Transmission oil change:
A brief treatise on transmission oils:
Specifications of transmission oils
Viscosity
The SAE (Society of Automotive Engineers, USA) specification is used to assess the viscosity characteristics of transmission oils. This standard is used to classify oils into 4 winter classes, marked by a number and a "W" (from English Winter), and 5 summer classes marked by a number.
Winter classes: 70W, 75W, 80W, 85W
Summer classes: 80, 85, 90, 140, 250
If only one class is used in the designation, it means it is a monograde oil (either summer or winter). When a combination of summer and winter classes is used (e.g., 80W-90), it is a multigrade oil or all-season oil. Unlike motor oils, manufacturers are more often required to use monograde transmission oils.
Performance categories
To label the performance category of transmission oils, the API (American Petroleum Institute, USA) classification is used. 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.
Currently, the following four performance classes are used:
GL-3 - low-additive oils for manual transmissions under medium stress
GL-4 - highly additive oils primarily intended for manually shifted transmissions and lightly loaded hypoid gears
GL-5 - oils intended for heavily loaded hypoid gears operating under the most severe service conditions, subjected to variable impact loads
GL-6 - oils for hypoid gears operating in extreme conditions. They are still used very rarely.
Comparison of viscosity classifications of SAE transmission and motor oils
Viscosity classes of transmission oils according to SAE J306A
How to choose the right transmission oil?
When selecting transmission oil, similar principles apply as when selecting motor oil.
1. The first principle when choosing transmission oil is to follow the manufacturer's instructions for the motorcycle, found 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 (this contradicts competition laws in the European Union). Transmission manufacturers (automobiles) recommend oils according to their performance specifications, e.g., API GL-4, API GL-5, and viscosity specifications SAE, e.g., 75W, 80W-90.
2. For such recommended oils, replacement intervals are then specified (usually 10,000 km or 1 year).
3. If you do not have the vehicle manual, consult with the manufacturer (at the Czech headquarters of the importer) of the vehicle. Remember, the vehicle manufacturer does not recommend a brand of oil, only the performance and viscosity specifications.
Data sheet
- Manufacturer:
- Motul
- Type of consumable material:
- Oils
Specific References
- EAN13
- 3374650237060