[guyslp]

Miscellaneous Hydraulic/Braking System Mineral Oil Based Fluids and Their Properties

	Castrol HSMO+	Castrol HSMO	LHM+	Mobil Univis HVI J26	Pentosin CHF 11S	Pentosin CHF 202
Color	Green	Green	Green		Dark Green	Dark Green
Density	0.836	0.85	0.844		0.825	0.84
Viscosity @ 40° C	17.9	19.8	20	25.8	18.7	19.3
Viscosity @ 100° C	6.14	6.0	6.2	9.3	6.0	6.1
Viscosity Index	340	285	320	376	313	302
Flash Point (° C)	121	120	110	103	160	154
Pour Point (° C)	-60	-58	-50	-60	-57	-54

Pentosin EHF is miscible with CHF 11S and CHF 202, though if you're using it a complete flush and fill would be the way to go.

At the time I put together the above table, EHF was not available. I'll have to go out and get its spec sheet and add a column when I have time.

 

[guyslp]

I'll have to go out and get its spec sheet and add a column when I have time.

	Castrol HSMO+	Castrol HSMO	LHM+	Mobil Univis HVI J26	Pentosin CHF 11S	Pentosin CHF 202	Pentosin EHF
Color	Green	Green	Green		Dark Green	Dark Green	Dark Green
Density @ 15° C (g/cm3)	0.836	0.85	0.844		0.825	0.84	0.85
Viscosity @ 40° C (mm2/s)	17.9	19.8	20	25.8	18.7	19.3	18.9
Viscosity @ 100° C	6.14	6.0	6.2	9.3	6.0	6.1	6.2
Viscosity Index	340	285	320	376	313	302	315
Flash Point (° C)	121	120	110	103	160	154	145
Pour Point (° C)	-60	-58	-50	-60	-57	-54	-54

By the way, Pentosin EHF is shown on their specification sheet as the equivalent of Bentley RH5000 fluid (among a number of other OE options - like most automotive fluids, these things are engineered to published specifications).