Lubricating oil composition and lubricating oil composition for continuously variable transmission
A lubricating oil composition of the invention contains longifolene represented by the following formula (1), that is, (1S,3aR,4S,8aS)-4,8,8-trimethyl-9-methylene-decahydro-1,4-methanoazulene.
1. A lubricating oil composition comprising:
at least 5 mass % of longifolene based on a total amount of the composition; and
greater than 0 mass % to 5 mass % of β-caryophyllene based on the total amount of the composition.
2. The lubricating oil composition of claim 1 , comprising at least 60 mass % of the longifolene based on the total amount of the composition.
3. A method of lubricating a continuously variable transmission, comprising applying the lubricating oil composition of claim 1 to the continuously variable transmission.
4. The lubricating oil composition of claim 1 , further comprising a bicyclo[2.2.1]heptane dimer.
5. The lubricating oil composition of claim 1 , wherein the longifolene has a purity of at least 80%.
6. The lubricating oil composition of claim 1 , comprising greater than 0 mass % to 1 mass % of the β-caryophyllene based on the total amount of the composition.
7. The method of claim 3 , wherein the continuously variable transmission is a traction drive type continuously variable transmission.
8. The lubricating oil composition of claim 1 , comprising at least 10 mass % of the longifolene based on the total amount of the composition.
9. The lubricating oil composition of claim 1 , comprising at least 70 mass % of the longifolene based on the total amount of the composition.
10. The lubricating oil composition of claim 1 , comprising at least 80 mass % of the longifolene based on the total amount of the composition.
11. The lubricating oil composition of claim 1 , comprising at least 90 mass % of the longifolene based on the total amount of the composition.
12. The lubricating oil composition of claim 1 , wherein the longifolene has a purity of at least 90%.
13. The lubricating oil composition of claim 1 , further comprising greater than 0 mass % to 3 mass % of the β-caryophyllene based on the total amount of the composition.
14. The lubricating oil composition of claim 4 , wherein the longifolene has a purity of at least 80%.
15. The lubricating oil composition of claim 4 , comprising greater than 0 mass % to 1 mass % of the β-caryophyllene based on the total amount of the composition.
16. The lubricating oil composition of claim 1 , wherein a viscosity of the composition at 100 degrees C. is at least 5 mm 2 /s.
17. A method of lubricating a continuously variable transmission, comprising applying the lubricating oil composition of claim 4 to the continuously variable transmission.
18. A method of lubricating a continuously variable transmission, comprising applying the lubricating oil composition of claim 6 to the continuously variable transmission.
19. A method of lubricating a continuously variable transmission, comprising applying the lubricating oil composition of claim 15 to the continuously variable transmission.