Marine Lubricant Range

NMMA approved lubricants — complete marine protection and performance.

At Rock Oil, we utilise our extensive expertise in 2-stroke and 4-stroke lubricants to produce an exceptional range of marine lubricants suitable for both inboard and outboard applications. Among this diverse array of top-tier lubricants, we are particularly proud to have achieved the esteemed NMMA certification for our leading marine lubricants, MP3 Ultra and MP+ Sport.

We offer a broad spectrum of marine lubricants formulated to meet specific performance and application needs. Every product in our range reflects our commitment to quality and performance, ensuring a suitable solution for every customer's requirements.

Outboard Marine Engine Oil

Inboard Marine Engine Oil

MP4 SPORT

4-stroke, synthetic, SAE 15W-40

API CK-4, CJ-4, CI-4 • ACEA E7, E11 • Caterpillar ECF-3, ECF-2 & ECF-1A • Cummins 20086 • Detroit Diesel 93K222 • Deutz DQC-III-18-LA, DQC-III-10-LA • Mack EO-S 4.5 • MAN M3775, M3575 • Mercedes-Benz / Daimler Truck 228.31 (DTFR 15C100) • MTU Type 2.1 • Renault RVI RLD-4, RLD-3 • Volvo VDS-4.5 • Ford WSS M2C171 F1

  • API CK-4
  • ACEA E7
Technical Data Sheet (PDF)

MPR INJECTOR

2-stroke, advanced synthetic, non TC-W3® injector / pre-mix

JASO FD & FC • ISO L-EGD • API TC • Rotax 253 • Husqvarna 346 & 372 — meets the requirements of Sea-Doo jet skis and other Rotax-engined marine equipment.

  • API TC
Technical Data Sheet (PDF)

Heavy-Duty Marine Engine Oil

Ancillary Marine Products

Specialist Marine Grease

Anti-Freeze / Coolants

KOOL-GUARD MEG -38

Mono Ethylene Glycol (MEG), Blue — dilution 50:50

AFNOR NF R15-601 • AS 2108 • ASTM D3306 • BS 6580 (2010) • BTC Type 2E • CUNA NC 956-16 • FVV Heft R443 • ÖNORM V 5123 • SAE J1034 • UNE 26-361

  • Coolant Std
Technical Data Sheet (PDF)

KOOL-GUARD XL -38

Mono Ethylene Glycol (MEG), OAT — dilution 50:50

ASTM D3306, D4985 • BS 6580 (2010) • DAF 74002 • SAE J1034 • Cummins CES 14603 • Ford ESE M97B49-A, WSS-M97B44-D • GM 1899M • John Deere H24 B1 & C1 • MAN 248, 324 (SNF) • Mercedes / Daimler Truck MB 325.3 • VAG TL 774D/F (G12/G12+) • Volvo VCS (except colour)

  • Coolant Std
Technical Data Sheet (PDF)

KOOL-GUARD VCS 50:50 PREMIX

Mono Ethylene Glycol (MEG), OAT

ASTM D3306, D4985 • BS 6580 (2010) • SAE J1034 • CUNA NC 956-16 • JIS K2234 • NATO S759 • Cummins CES 14603 • MAN 248, 324 (SNF) • Mercedes / Daimler Truck MB 325.3 • Volvo VCS

  • Coolant Std
Technical Data Sheet (PDF)

KOOL-GUARD PSi-OAT -38

Mono Ethylene Glycol (MEG), Silicated OAT

AS 2108-2004 • ASTM D3306, D4985, D6210, D7583 • SAE J1034 • BS 6580:2010 • Volvo VCS-2 • Deutz DQC CC-14 • John Deere >2011 • Perkins

  • Coolant Std
Technical Data Sheet (PDF)

Compare products

Select two marine lubricant range products to view specifications, approvals and data sheets side by side.

MP3 ULTRAOutboard Marine Engine OilMP PLUS SPORT 10W-40Outboard Marine Engine Oil
Description2-stroke, advanced synthetic, DFI4-stroke, synthetic, SAE 10W-40
Applications
  • Outboard 2-stroke and 4-stroke marine engines
  • Direct fuel injection (DFI) and carburetted outboards
  • Recreational, sport and tender craft
  • Pre-mix and oil-injection systems
  • Commercial and leisure marine operations
  • Salt-water and humid operating environments
  • Outboard 2-stroke and 4-stroke marine engines
  • Direct fuel injection (DFI) and carburetted outboards
  • Recreational, sport and tender craft
  • Pre-mix and oil-injection systems
  • Commercial and leisure marine operations
  • Salt-water and humid operating environments
Grades / viscosities——
Specifications——
Approvals
  • NMMA TC-W3® (No. RL 92402B)
  • NMMA TC-W3
  • API SM
  • NMMA FC-W CC (No. FC13799W)
  • NMMA FC-W
  • NMMA FC-W
  • API SM
Technical Data Sheet View TDS (PDF) View TDS (PDF)

Request product data sheets

Depending on the range, Rock Oil products are available in multiple sizes, including 400ml aerosols and 1L / 4L / 5L / 20L / 210L / bulk containers. Full product data sheets and health and safety information are available on request.

support@roi.com.sg +65 6978 6809

All products and information are correct at the time of publication. The company reserves the right to change formulations and specifications without prior notice. REF /MAR/B25/D