Mobilgard HSD by Mobil is an extra high performance, multi-grade engine oil specifically formulated for severe service high-speed diesel engines in marine applications. Its advanced chemistry provides outstanding performance in both modern, demanding low-emission diesel engines and older diesel engines operating on low or high sulphur distillate fuel. Mobilgard HSD is approved or recommended by all the major marine high-speed diesel engine builders.
Features and BenefitsMobilgard HSD combines a blend of high quality base stocks with a superior balanced additive system to provide exceptional control of oil thickening due to soot build-up and high temperatures, as well as outstanding resistance to oxidation, corrosion, and high temperature varnish deposits.
When used as recommended, Mobilgard HSD diesel engine oil provides the following features and potential benefits:
| Outstanding thermal and oxidation stability | Reduces formation of deposits and sludge build-up |
| Keeps engines clean and operating smoothly | |
| Excellent wear protection | Extended life of critical engine components |
| High Viscosity Index | Stable oil film at all operating temperatures |
| Reduced oil consumption | |
| Increased high temp/high shear performance | Reduced engine scuffing, bore polishing and ring sticking |
| Outstanding TBN retention | Protects engine parts from corrosive wear and deposits |
| Excellent water tolerance and separation capability | Maintains effective lubrication and film-strength in the presence of water |
| Excellent low temperature properties | Improved oil pumpability/circulation at start-up |
| Start-up wear protection especially for valve train area |
Mobilgard HSD is designed to provide outstanding performance in the most severe service marine applications of modern high-speed diesel engines, such as Caterpillar 3500 Series and smaller bore, Cummins, Volvo, Daihatsu, Yanmar, and others.
Specifications and Approvals