Deep sea
Protect your deep sea vessels with Castrol solutions. Designed for performance, compliance, and long-haul reliability in extreme marine conditions.
Keeping your deep sea vessels moving forward
Deep sea shipping pushes your vessels to the limit. Long voyages, heavy loads, and extreme conditions mean reliability isn’t optional – it’s critical. At the same time, you’re under increasing pressure to reduce environmental impact and stay ahead of tightening global regulations. The wrong lubricant can put all of that at risk.
With over 100 years of marine industry expertise, Castrol understands the challenges you face on and offshore. Our deep sea range – from engine oils and hydraulic fluids, to gear oils and Environmentally Acceptable Lubricants (EALs)* – is proven to protect equipment, extend service life, and keep your operations compliant. So you can move forward with confidence – wherever your voyages take you.
Castrol products for the deep sea sector:
Slow-speed engine oil / System oils / Ancillaries / Environmentally Acceptable Lubricants*
Castrol Cyltech
Castrol's Cyltech range of slow-speed cylinder oils has been formulated to help deliver 2-stroke engine cleanliness and control deposits. Built for the endurance of deep sea operations, the products are designed to help minimise deposit formation on critical components, provide thermal and oxidative stability, and maintain performance across long cycles and extreme conditions.
Our products are available across a range of different base numbers spanning 40 to 140 BN, with approvals from the major OEMs.
Global network
Using our online Directory of Marine Services (DMS), you can view our product range and port availability in just a few clicks. Our online DMS is accessible 24/7 – so you can check product availability at any time, in any location.
