- Joined
- Aug 29, 2023
- Messages
- 56
- Location
- Sacramento
Any news on the subject?!?
Someone with the JASO API spec and real dyno test?!?
Motul 300V “Motorcycle” oil, and Red Line “Power Sports” are both JASO. They can be used with wet or dry clutches.
Another advantage of the JASO rating, is the oil does not the friction modifiers for improved fuel economy. When those Fuel Economy friction modifiers hit very hot cylinder walls, they flash burn and leave a varnish on the cylinder walls. This varnish fills in the cross hatch pattern on the cylinder walls, making it harder for your oil to cling onto the cylinder walls. This causes high oil consumption. The cylinder walls in your family car don’t get hot enough for the fuel economy friction modifiers to create a problem. Most motorcycles don’t get hot. But modern BlueTEC diesels and you guys hot rodding your Panigale V4s will definitely have hot cylinder walls. JASO with a dry clutch is a positive. Fuel efficient friction modifiers also cause a wet clutch to slip. For you wet clutch owners who feel like your clutch feels odd, check that your oil has the JASO approval. I can also explain JASO MA if anyone really wants to get into the weeds.