Mobil SHC Aware Gear Oil 100
Readily biodegradable oil for marine gears and thrusters, EPA VGP 2013 and EU Ecolabel
- Biodegradable gears
ISO VG 100
Readily biodegradable anti-wear oil for marine gears and thrusters, EPA VGP 2013 compliant
ANSI/AGMA 9005-E02 (2002)
The 2002 edition of the AGMA enclosed gear drive lubrication practice, superseded by F16 of 2016.
Industrial gear lubricant - CKC — ISO 12925
The international standard for enclosed gear drive lubricants; class CKC is the mineral oil with antioxidant, anticorrosion and antiwear additives, for moderate duty.
Industrial gear lubricant CKD — ISO 12925
Class CKD of ISO 12925-1: a gear oil with the same additive package as CKC but greater thermal stability, for gear units running hot.
US EPA Vessel General Permit (VGP)
EPA permit requiring environmentally acceptable lubricants at oil-to-sea interfaces of vessels.
| Property | Typical value | Method |
|---|---|---|
| Acute Algae Toxicity, EC50, 72 h, mg/l, OECD 201 | >1000 | |
| Acute Daphnia Toxicity, EC50/48h, mg/l, OECD 202 | >1000 | |
| Acute Fish Toxicity, LC50/96h, mg/l, OECD 203 | >1000 | |
| Air release, 50 Cmin | 21 | ASTM D3427 |
| B-10 Oxidation Test, 80 h, 127 C, KV increase @ 100 C, %, M 334 | 4 | |
| Bioaccumulation, Partition coefficient, Log Pow, OECD 117 | <3 | |
| Density @ 15 Ckg/m3 | 921.5 | DIN 51757 |
| FE8 D7.5/80-80 Cage Wearmg | 34 | DIN 51819-3 |
| FZG Micropitting, Load Stage GFTRating | 10 | FVA No. 54 |
| FZG Scuffing, Fail load stage, A/8.3/90 | 14 | ISO 14635-1 |
| Flash point, Cleveland Open Cup°C | 287 | ASTM D92 |
| Kinematic viscosity @ 100 Cmm2/s | 13.3 | ASTM D445 |
| Kinematic viscosity @ 40 Cmm2/s | 100 | ASTM D445 |
| Pour point°C | -36 | ASTM D97 |
| Rust Characteristics, Procedure B, 24 h | PASS | ASTM D665 |
| Shake-Flask Test, CO2 Evolution (Mod. Sturm), %, OECD 301B | 84 | |
| Viscosity index | 137 | ASTM D2270 |

Mobil SHC Aware Gear 100 is a high performance, anti-wear gear oil for marine applications from ExxonMobil, formulated to meet the U.S. EPA 2013 Vessel General Permit (VGP) guidelines for environmentally acceptable lubricants. It is one of three grades in the series (ISO VG 68, 100 and 150) and provides excellent wear protection for gears and bearings, safeguards against rust and corrosion, and offers outstanding oxidation properties across a wide operating temperature range with excellent low-temperature start-up and air release. This ISO VG 100 grade has a kinematic viscosity of 13.3 mm²/s at 100 °C and 100 mm²/s at 40 °C, a viscosity index of 137 and a pour point of -36 °C. It suits marine controllable pitch propeller and thruster applications, enclosed steel-on-steel spur, helical and bevel gear drives, systems requiring readily biodegradable and minimally toxic fluids, environmentally sensitive marine and mobile equipment, and select stern tube applications. It holds thruster builder approvals from Nakashima, HHI Hyundai, KTE Nakashima Korea and KHI, plus SKF Marine approval (Simplex stern tube bushes and seals), and meets or exceeds AGMA 9005-E02-EP, ISO L-CKC/L-CKD (ISO 12925-1:2024) and US EPA VGP:2013 requirements. Key benefits include outstanding load-carrying and anti-wear properties that protect against micropitting and scuffing, a shear-stable high viscosity index for protection over a wide temperature range, excellent resistance to high-temperature degradation, and very good demulsibility with resistance to rust and corrosion.
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