OrangeRidge
Gold Member
On this Forum was posted ;
UDT is 20w UTTO
SUDT is 10w/20
JD HyGARD is 10w/30
Changing from UDT to JD ( can't get SUDT here ) was very
noticeable increase in rpms at cold and hot (6% ish up ).
20w is too viscous for small fast pumps , hence both Companies
produce a lower visc for their smaller machines.
UDT is 20w UTTO
SUDT is 10w/20
JD HyGARD is 10w/30
Changing from UDT to JD ( can't get SUDT here ) was very
noticeable increase in rpms at cold and hot (6% ish up ).
20w is too viscous for small fast pumps , hence both Companies
produce a lower visc for their smaller machines.