S-Oil Lubricants CI-4 15W-40 200L Drums in Stock
Posted by Nick Flavel on 8th Jun 2026
S-OIL 7 BLUE #5 CI-4/SL 15W-40 – Proven Protection for Hard-Working Diesel Engines
When it comes to keeping diesel engines running reliably, sometimes the best solution isn't the latest specification oil—it's the right oil for the job.
At Filter Discounters, we currently have excellent stocks of S-OIL 7 BLUE #5 CI-4/SL 15W-40 available in 200-litre drums, with additional stock arriving soon. For many customers operating established fleets and equipment, it represents outstanding value and dependable performance.
Built for Real-World Diesel Applications
S-OIL 7 BLUE #5 CI-4/SL 15W-40 is a heavy-duty diesel engine oil designed for turbocharged and naturally aspirated diesel engines operating in demanding conditions. It is suitable for both on-road and off-road applications and is commonly used across:
- Road transport fleets
- Construction and earthmoving equipment
- Agricultural machinery
- Mining support equipment
- Marine diesel engines
- Power generation equipment
The CI-4 specification has proven itself over many years in some of Australia's toughest operating environments. It remains a popular choice for operators running engines that do not require the latest low-SAPS CK-4 or FA-4 oils.
Engine Protection Where It Counts
A quality diesel engine oil must do more than lubricate.
It must help control soot, resist oxidation, minimise wear and keep internal engine components clean. S-OIL's heavy-duty diesel formulations are designed to provide strong detergent performance, thermal stability and protection under severe operating conditions.
For operators running equipment in dusty, hot Australian conditions, these characteristics help support longer engine life and reliable operation.
Backed by One of the World's Largest Refiners
Many Australian operators know S-OIL as a lubricant brand, but fewer realise the scale behind the company.
S-OIL is one of South Korea's major energy companies and lubricant producers, manufacturing a broad range of automotive, commercial and industrial lubricants supplied throughout Asia-Pacific and global markets.
The company's reputation for high-quality base oils and lubricant technology has helped make S-OIL products increasingly popular throughout Australia.
Excellent Value for Fleet Operators
For businesses managing multiple vehicles or pieces of equipment, lubricant costs can become significant.
S-OIL 7 BLUE #5 CI-4/SL 15W-40 offers a practical balance between performance and cost, making it an attractive option for fleet operators seeking dependable protection without paying premium pricing for specifications their equipment may not require.
Many operators find it delivers exactly what they need:
- Reliable engine protection
- Proven CI-4 performance
- Strong value for money
- Availability from local stock
Available Now from Filter Discounters
We currently hold substantial stocks of S-OIL 7 BLUE #5 CI-4/SL 15W-40 in 200-litre drums, with further shipments on the way.
Whether you're servicing a single machine or managing an entire fleet, our team can help you determine the right lubricant for your application.
Contact Filter Discounters today to discuss pricing, availability and delivery options throughout Western Australia.