Trusted for more than 50 years
Why trust in Mobilgrease 28 aviation grease? Because it’s been specifically formulated to:
Common grease point applications
- Gears, actuators, jack screws
- Helicopter rotor bearings
- General airframe (splines, slats, stabilizers, elevators)
- Landing gear assemblies
- Flight controls
- Aircraft wheel bearings
|ExxonMobil Jet A meets the following industry specifications:||ExxonMobil Jet A||ExxonMobil Jet A-1|
|ASTM D 1655||X||X|
|Military||ExxonMobil Jet A||ExxonMobil Jet A-1|
|Approved against Mil U.K. DEF STAN 91-91||Not applicable||X|
|Approved against Mil and the JIG (Joint Inspection Group) Aviation Fuel Requirements for Jointly Operated Systems (Check List)||Not applicable||X|
|Jet A||Jet A-1|
|Acidity, mg KOH/g||0.10 Max.||0.10 Max.|
|Aromatics, Vol. %||25 Max.||25.0 Max.ax.|
|Sulphur, mercaptan, Wt. %||0.003 Max.||0.003 Max.|
|Sulphur, total, Wt. %||0.30||0.30|
|10% Distillation, ºC||205 Max.||205.0 Max.|
|Final Boiling Point, ºC||300 Max||300.0 Max|
|Distillation Residue, %||1.5 Max.||1.5 Max.|
|Distillation Loss, %||1.5 Max.||1.5 Max.|
|Flash Point, ºC||38 Min.||38.0 Min.|
|Density @ 15ºC, kg/m3||775/840||775/840.0|
|Freeze Point, ºC||-40 Max||-47.0 Max|
|Viscosity @ -20ºC, mm/s||8.0 Max.||8.0000 Max.|
|Net Heat of Combustion, MJ/kg||42.8 Min.||42.80 Min.|
|One of the following shall be met|
|1) Smoke Point, mm, or||25 Min.||25.0 Min.|
|2) Smoke Point, mm, and||18 Min.||19.0 Min.|
|Naphthalenes, Vol. %||3.0 Max||3.00 Max|
|Copper Strip Corrosion, 2 h % 100ºC||No. 1||No. 1|
|Filter pressure drop, mm Hg||25 Max.||25 Max.|
|Tube Deposits||< 3 Max.||< 3 Max.|
|Existent Gum, mg/100 mL.||7 Max.||7 Max.|
|Water Reaction, Interface Rating||1b Max.||1b Max.|
|Without electrical conductivity additive||85||85|
|With electrical conductivity additive||70||70|
|Electrical conductivity, pS/m||50 Min. 600 Max.|
Health and Safety
Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDSs are available via the Internet at ExxonMobil.com. This product should not be used for purposes other than its intended use.
MAIN HAZARD: FIRE
Keep away from ignition sources.
Discharge your static electricity before fueling.
Fill portable containers on the ground.
Handle/Transport in closed or properly vented containers and systems, consistent with all applicable laws.
Harmful or fatal if swallowed.
Avoid breathing the vapors and skin contact.
Do not wash down spills with water. Prevent all spills from reaching water.