JLG 601S Operator Manual - Manual (Page 79)

SECTION 6 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE
3121218 – JLG Lift – 6-5
Aside from JLG recommendations, it is not advisable to mix oils
of different brands or types, as they may not contain the same
required additives or be of comparable viscosities. If use of
hydraulic oil other than Mobilfluid 424 is desired, contact JLG
Industries for proper recommendations.
Table 6-8. Mobilfluid 424 Specs
SAE Grade 10W30
Gravity, API 29.0
Density, Lb/Gal. 60°F 7.35
Pour Point, Max -46°F (-43°C)
Flash Point, Min. 442°F (228°C)
Viscosity
Brookfield, cP at -18°C 2700
at 40° C 55 cSt
at 100° C 9.3 cSt
Viscosity Index 152
Table 6-9. Exxon Univis HVI 26 Specs
Specific Gravity 32.1
Pour Point -76°F (-60°C)
Flash Point 217°F (103°C)
Viscosity
at 40° C 25.8 cSt
at 100° C 9.3 cSt
Viscosity Index 376
NOTE: Mobil/Exxon recommends that this oil be checked
on a yearly basis for viscosity.