bmaverick
Elite Member
- Joined
- Sep 17, 2013
- Messages
- 4,638
- Location
- Beloit-WI
- Tractor
- Yanmar YM2610 ■YANMAR GURU■ EXTRAORDINAIRE
Yanmar and Deere developed the J20B, J20C and J20D hydraulic fluid specification together.interestingly i notice that the machine is slightly faster today- 6.9 vs 6.2 yesterday under same conditions and feels much better. Guess the lesson is to keep the fluid up oil the upper half- I wonder if somehow the dipstick is off or something?
I buy the local farm box store brand licensed for the J20C. Made by Ashland-Valvoline.
This way, it works really well in our Yanmar made machines. The universal fluids work OK for a few weeks, then they go crappy. So, just stay with the correct 'meets' J20x and all is good.