Mobilgard™ 525 cylinder oil
Mobilgard™ 525 cylinder oil provides optimal engine protection while meeting the 2015 Emission Control Area sulphur requirements. It helps prevent deposit formation and scuffing-related engine wear that can occur when using 0.10 per cent sulphur fuel.
Additional benefits of Mobilgard 525 cylinder oil may include:
- Excellent thermal and oxidative stability to ensure performance in a variety of engine conditions
- Longer piston overhaul intervals
- Helping decrease maintenance costs
In conjunction with ExxonMobil’s Mobil Serv℠ Cylinder Condition Monitoring service, Mobilgard 525 oil can help operators protect engines and optimise feed rates while using low sulphur distillate fuels.
Mobilgard 525 cylinder oil has received No Objection Letters from Winterthur Gas & Diesel Ltd. (formerly Wärtsilä) and Mitsubishi Heavy Industries.
*ExxonMobil recommends Mobilgard 525 oil for use in Tier I and Tier II engines operating on low-sulphur distillate.
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MobilGard™ is the flagship of marine engine oils from ExxonMobil. It is supported by over 60 years of engineering excellence and lubrication technology.
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Wartsila
Product Information
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- Combats the deposits and scuffing related engine wear associated with low sulphur fuels
- Excellent thermal and oxidative stability to ensure performance in a variety of engine conditions
- Formulated with detergent technology required to deliver excellent performance with low-sulphur fuel
- Detergency system provides strong control of piston groove deposits which is a critical area for distillate fuel operation
Applications
- Marine crosshead engines designed for increased power and fuel efficiency
- Earlier engine designs and engines in slow speed steaming operation
Specifications and Approvals
| Mobilgard 525 has the following builder approvals | |
|---|---|
| WinGD |
X |
** Please refer to latest service bulletins from Wartsila Switzerland for lubrication requirements.
To ensure achieving the maximum equipment life possible as well as appropriate feedrates, particular attention should be paid to the manufacturer's special recommendations as published in the references as above or any other future manufacturer’s instructions.
Typical Properties
| SAE Grade | 50 |
|---|---|
| Specific Gravity at 15ºC | 0.909 |
| Flash Point, ºC, ASTM D 92 | 286 |
| Pour Point, ºC, ASTM D 97 | -9 |
| cSt, at 40ºC | 226 |
| cSt, at 100ºC | 20 |
| Viscosity Index, ASTM D 2270 | 102 |
| TBN, mg KOH/g, ASTM D 2896 | 25 |
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