GULFGEAR MT
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General Qualities & Characteristics

Gulfgear MT is a new generation automotive gear lubricant meeting the new American Petroleum Institute specifications of API MT-1 and the U.S. Military specification of MIL-PRF-2105E.  

Gulfgear MT is predominantly recommended for use in manual transmissions of buses and heavy-duty trucks primarily, in North America.  This oil can also be used in the synchronized manual transmissions and trans-axles in passenger-cars and other heavy-duty applications.  The use of Gulfgear MT provides better protection against thermal degradation, component wear, and oil-seal deterioration, than the previously available commercial oils meeting GL-4 and GL-5 specifications.
Gulfgear MT is available in two multi-grade viscosities, SAE 80W90 and SAE 85W140. Because of intelligent use of high quality base oils, these oils do not contain shear-breaking viscosity index improvers and hence does not lose  viscosity (thickness) while in use. Gulfgear MT also meets the specifications of the new Mack Engine Co. specification of Mack GO-H in addition to the proposed category PG-2.
 
Performance Specifications
Gulfgear MT (selected viscosity grades) meets the specification requirements of: API MT-1 : U S Military MIL-L-2105D : MIL-PRF-2105E : API GL-5, GL-4 and PG1/PG-2 Performance and Mack GO-H and Rockwell 0-76-D (80W-90) and 0-76-A (85W140)
 
Typical Properties
 

SAE Grade

80W90

85W140

90

140

250

Viscosity at 40ºC, cSt

137

109

228

955

1669

Viscosity at 100oC, cSt

14.3

15.4

17

41

56

Viscosity Index

103

135

95

95

90

Pour Point, oC

-20

-12

-6

-6

0

Flash Point, oC

225

220

218

300

323

Sulfated Ash, wt%

0.24

0.9

0.9

0.9

0.9

Cu.Corrosion,3H/121ºC

1B

1B

1B

1B

1B

Brookefield Viscosity,

CP at –26.1 deg C

CP at –12.2 deg C

102800

75100

NA

NA

NA
 
Color Varies from Country to Country. Properties mentioned above are typical only and minor variations, which do not affect the product performances are to be expected in normal manufacturing. Advice and opinion noted herein are given in good faith and on the basis of the best information available, information is based on past history of the grade only and must not be construed as a guarantee of performance nor any legal liability is accepted by GULF OIL International or any of its affiliates. Follow equipment manufacturer’s recommendations for performance level and viscosity grade. The Material Safety Data Sheet for this product is available with your nearest GULF office or in this Website.(*) Computer generated read-across data.
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r:SP093-Issued 8/00