Mobilgard™ M440 — 40 BN Medium-Speed Trunk Piston Engine Oil | Residual Fuel

ExxonMobil · Mobilgard Marine · Authorised Distributor — South Africa Mobilgard™ M440 is a premium, extra high performance 40 TBN SAE 40 trunk piston engine oil (TPEO) — part of the Mobilgard M40 Series and the highest TBN grade in the M-Series range. Designed for the most severe residual-fuelled medium-speed diesel applications where the higher 40 TBN provides greater acid neutralisation capacity for engines operating on higher-sulphur residual fuels or under more demanding conditions than the 30 BN M430 can address. Features ExxonMobil patented DAC (Detecting Asphaltene Contamination) test technology. Available from Orbit Industrial — authorised Mobil distributor, South Africa. At a Glance 40 BN TBN mgKOH/g SAE 40 Grade Residual HFO — High S DAC Patented Test MAN ES Approved Wärtsilä Approved Technical Documentation PDF Mobilgard™ M440 — Technical Data Sheet Click to download · ExxonMobil Features & Benefits 40 BN — Maximum Acid Neutralisation Highest TBN in the M-Series — 40 mgKOH/g provides maximum acid neutralisation capacity for engines burning higher-sulphur residual fuels or operating under the most severe conditions where 30 BN M430 may be insufficient. Outstanding Residual Fuel Compatibility High performance additive detergent technology provides outstanding fuel-lube compatibility — preventing asphaltene sludge formation and enabling longer oil life in the most severe HFO-fuelled medium-speed applications. Excellent Engine Cleanliness Reduced deposits in piston undercrown and ring belt areas — keeping crankcase, camshaft and piston areas clean for extended overhaul intervals in the harshest residual-fuelled medium-speed marine engine applications. ExxonMobil Patented DAC Test Developed using the patented DAC (Detecting Asphaltene Contamination) test — detecting asphaltene contamination that could cause piston damage and excessive oil consumption if undetected in high-sulphur fuel operation. High Performance Thermal Stability Excellent TBN retention and resistance to viscosity increases over long operating periods — maintaining consistent protection throughout extended drain intervals even in the most demanding residual fuel conditions. Excellent Lube-Fuel Compatibility Outstanding fuel-lube compatibility and easy water separation — critical for vessels operating on varied residual fuel qualities and sulphur levels through different African ports. Applications High-Sulphur HFO Operations Medium-speed engines operating on higher-sulphur residual fuels — where the 40 BN provides greater acid neutralisation capacity than the 30 BN M430 for more aggressive sulphuric acid neutralisation requirements. Most Severe Residual Fuel Applications The most demanding medium-speed residual-fuelled applications in deep-sea shipping, coastal vessels and stationary power generation — where maximum TBN and cleanliness performance is required. FPSO & Offshore Power Medium-speed diesel generator engines on FPSOs and offshore platforms operating on high-sulphur residual fuel — where maximum TBN reserve is critical for extended continuous duty operation. Typical Properties Property Test Method Value SAE Grade — 40 TBN (mgKOH/g) ASTM D2896 40 KV @ 100°C (cSt) ASTM D445 ~15.0 Flash Point (°C) ASTM D92 ~258 Pour Point (°C) ASTM D97 -15 Typical properties — not guaranteed specifications. Available Pack Sizes 208L drum & 1,000L IBC Price on request — contact Orbit Industrial Request a Quote — Mobilgard™ M440 Available in 208L drum and 1,000L IBC. Authorised Mobil distributor. Contact Orbit Industrial for pricing. Request a Quote jaco@orbitindustrial.co.za → +27 (21) 569-2530 → Orbit Industrial Supplies is an authorised ExxonMobil distributor — South Africa. Mobilgard M430 (30 BN) → · Full Mobilgard range → · Request a quote →