P R O D U C T I N F O R M A T I O N
CITGO PREMIUM GEAR OILS (MP)
Date 12/04
DESCRIPTION: CITGO Premium Gear Oils (MP) are multipurpose gear lubricants whose high performance level is
obtained by using a sulfur-phosphorus additive system. The selected additives impart extreme
pressure properties to protect automotive gears which may be operated under the most severe
service conditions encountered in passenger cars, trucks, farm tractors, earth moving, construction
and other heavy-duty equipment. These additives specifically impart antiweld, antiscuff and antiwear
properties necessary in heavy-duty service gear lubricants.
API Service Classification: GL-5 and MT-1.
QUALITIES: CITGO Premium Gear Oils (MP) are blended to meet the multigrade viscosity requirements described
in SAE J306 Recommended Practice. These gear lubricants are formulated with naturally high VI,
solvent-refined base oils and thus do not require viscosity index improvers to meet multigrade
viscometric properties. Because these lubricants do not contain VI improvers, they will maintain their
viscometric properties throughout their useful life and will not lose viscosity through shear.
Viscosity Grades Available:
SAE 80W-90 grade for use at ambient temperatures down to -15掳F.
SAE 85W-140 grade for use at ambient temperatures down to +10掳F.
Equipment manufacturers鈥? recommendations should be followed when the gear lubricant is subject to
high ambient temperatures. While some gear sets are designed for year-round operation using an
SAE 80W-90, others may require SAE 85W-140 for high ambient temperature operations during the
hot weather months.
CITGO Premium Gear Oils (MP) meet performance requirements of Military Specifications
MIL-L-2105D and MIL-PRF-2105E. They are designated for the highest severity gear service, API
Service Classification GL-5.
Premium Gear Oils (MP) meet Mack Trucks GO-J Specification.
APPLICATIONS: Premium Gear Oils (MP) are recommended for the following applications:
鈥? Where a 鈥渕ultipurpose鈥? gear oil or one meeting the requirements of API Service GL-5 and/or
MT-1 is required.
鈥? equipment where differentials, final drives and other gear cases of gear oils are specified by
In transmissions, trucks, buses and farm
extreme pressure (E.P.), hypoid or multipurpose
the manufacturer.
C I T G O P e t r o l e u m C o r p o r a t i o n 鈥? 8 0 0 / 2 4 8 - 4 6 8 4 鈥? H o u s t o n , Te x a s 鈥? M a d e i n U S A
C10012
TYPICAL PROPERTIES:
CITGO PREMIUM GEAR OILS (MP)
Grade 80W-90 85W-140
Material Code 631310001 631320001
Gravity, ASTM D 4052, 掳API 27 26
Density, lb/gal at 60掳F 7.4 7.5
Flash Point, ASTM D 92, 掳F (掳C) 448 (231) 478 (248)
Viscosity, ASTM D 445, cSt at 40掳C 148 376
Viscosity, ASTM D 602, cSt at 100掳C 14.7 26.9
Viscosity, ASTM D 2161, SUS at 100掳F 788 2010
Viscosity, ASTM D 2161, SUS at 210掳F 78.4 133
Brookfield Viscosity, ASTM D 2983
cP at -26.1掳C 120,000 鈥?
cP at -12掳C 鈥? 65,000
Viscosity Index, ASTM D 2270 98 95
Pour Point, ASTM D 97, 掳F (掳C) -27 (-33) 0 (-18)
Channel Point, 掳F (掳C), Max. -31 (-35) -4 (-20)
Foam Test, ASTM D 892 Pass Pass
Copper Corrosion, ASTM D 130 Pass Pass
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