SERIES 3000 5W-30 SYNTHETIC HEAVY DUTY DIESEL OIL, 1G diesel-motor-oil

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Discontinuation Notice: AMSOIL Series 3000 5W-30 Synthetic Diesel Oil is discontinued and available only while supplies last. For a serious upgrade, AMSOIL recommends trying Signature Series Max-Duty 5W-30.

Product Overview

AMSOIL Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil delivers extraordinary lubrication in both diesel and gasoline engines found in commercial, fleet, and personal vehicles. Designed to withstand extreme heat stress, it resists thermal breakdown, oxidation, and sludge formation. Its wax-free, broad-viscosity formulation provides exceptional cold-weather starting alongside high-temperature protection.

Key Benefits & Performance Features

• Excellent Protection Against Engine Wear

  • Reduces ring wear, cylinder bore polishing, oil consumption, and valvetrain wear.

  • Helps lower long-term maintenance costs and unexpected vehicle downtime.

  • Delivers dependable engine protection over extended drain intervals.

• Superior Viscosity & Soot Control

  • Effectively controls soot-thickening and wear under heavy loads.

  • Retains proper viscosity after high-temperature service for continuous protection and maximized fuel economy.

  • Reduces overall oil consumption and exhaust emissions.

• Extreme-Temperature Performance

  • Resists thermal breakdown, oxidation, and sludge formation much better than conventional oils.

  • Stays fluid down to -47°C (-53°F) for improved cold-weather oil flow, reduced bearing wear, and effortless startup.