TOYOTA CI-4 15W-40 Diesal Motor Oil

Description

Are you looking for high-viscosity, heavy-duty engine protection for your Toyota commercial vehicle, diesel SUV, or pickup truck in Sri Lanka? Toyota CI-4 15W-40 Diesel Motor Oil is an authentic OEM heavy-duty diesel engine lubricant engineered specifically to meet high-load Toyota manufacturing standards. Formulated under the API CI-4 specification, this high-performance engine lubricant delivers supreme shear stability, exceptional soot dispersancy, and maximum wear defense under hot tropical climates and continuous heavy-payload towing operations.

By regularly servicing your engine with authentic Toyota CI-4 15W-40 Diesel Motor Oil, you protect high-stress turbochargers, main journal bearings, and valve trains against friction, thermal breakdown, and harmful sludge buildup.

Why Choose Toyota CI-4 15W-40 Diesel Motor Oil?

Heavy-duty Japanese diesel engines operating under high ambient temperatures and heavy commercial hauling experience extreme thermal stress and soot accumulation. Using lower-viscosity or low-grade motor oils in worn or high-mileage engines can result in low oil pressure warnings, excessive oil consumption, valve train scoring, and accelerated cylinder liner wear. Opting for genuine Toyota CI-4 15W-40 Diesel Motor Oil provides a thick, resilient lubricating film combined with high Total Base Number (TBN) chemistry that neutralizes harmful sulfur acids, keeping your Toyota diesel engine performing at peak power across Sri Lanka.

Key Performance Features & Benefits

• API CI-4 Heavy-Duty Approval: Specially developed for Toyota CI-4 15W-40 Diesel Motor Oil applications to manage severe soot loading and thermal stress in high-output turbo-diesel engines.
• Heavy-Duty 15W-40 Viscosity Protection: Maintains high oil pressure and a durable hydrodynamic lubricant barrier even under continuous high-temperature operating conditions.
• Exceptional Soot & Deposit Control: Advanced dispersant additives keep carbon and soot suspended, preventing abrasive sludge buildup and oil filter clogging.
• High Acid Neutralization (TBN): Neutralizes corrosive combustion acids created by high-sulfur diesel fuels, protecting internal copper and lead alloy bearings.
• Anti-Wear & Anti-Scuffing Defense: Heavy-duty zinc and phosphorus additives shield piston rings, camshaft lobes, and turbocharger bearings from wear.

Vehicle Compatibility Matrix

Before purchasing, check your owner manual to ensure Toyota CI-4 15W-40 Diesel Motor Oil matches your engine specification. This lubricant is tailored for non-DPF Toyota turbocharged and naturally aspirated diesel vehicles, including:

• Toyota HiAce & Commuter: LH113, LH172, KDH200, KDH202 (2L, 3L, 5L, and 2KD-FTV 2.5L non-DPF diesel engines)
• Toyota Hilux & Hilux Tiger / Vigo: LN106, LN166, KUN16, KUN26 (3L, 5L, and 1KD-FTV 3.0L D-4D engines without DPF)
• Toyota Land Cruiser & Prado: HZJ70, HZJ79, KZJ95, KDJ120 (1HZ 4.2L, 1KZ-TE, and 1KD-FTV diesel variants)
• Toyota TownAce / LiteAce: CR27, CR31, CR41, CR52 (2C, 3C naturally aspirated and turbo diesel commercial vans)
• Toyota Dyna & Coaster: Heavy-duty commercial trucks and buses calling for API CI-4 15W-40 viscosity grade

Technical Specifications

• Product Name: Genuine Toyota Diesel Motor Oil CI-4 15W-40
• Viscosity Rating: SAE 15W-40
• API Performance Category: API CI-4 / CF
• Base Fluid Type: Premium Heavy-Duty Mineral Base Stock with Advanced Additives
• Container Packaging: 4-Liter Factory Sealed Can
• Origin: Original Genuine Toyota Approved Specification

Recommended Service & Maintenance Intervals

For commercial diesel vehicles and heavy SUVs driven in warm tropical weather and demanding road conditions across Sri Lanka, technicians recommend changing your Toyota CI-4 15W-40 Diesel Motor Oil along with a genuine Toyota spin-on oil filter every 5,000 km to 7,500 km (or every 6 months). Always check your dipstick level regularly to maintain accurate oil capacity.

Frequently Asked Questions (FAQ)

Q: Is Toyota CI-4 15W-40 Diesel Motor Oil safe for common-rail D-4D engines?
A: Yes, it is fully suitable for common-rail 1KD-FTV and 2KD-FTV engines that do NOT feature Diesel Particulate Filters (DPF). If your vehicle has a DPF exhaust system, use low-SAPS DL-1 or ACEA C2 oils.

Q: What is the difference between 10W-30 and 15W-40 diesel motor oil?
A: 15W-40 has a higher viscosity rating at operating temperatures, making it ideal for high-mileage engines, heavy commercial hauling, and hot weather driving where maximum oil film thickness is required.

Q: Can I use this CI-4 15W-40 oil in petrol engine vehicles?
A: CI-4 is formulated specifically with high detergent levels for diesel engines. For petrol vehicles, always use dedicated API SP or SN petrol motor oils such as Toyota 5W-30 or 10W-30.

Buy Authentic Toyota Oils at Lubricant.lk

At Lubricant.lk, we stock 100% authentic, factory-sealed Toyota OEM lubricants imported directly to ensure your heavy-duty engine receives maximum protection. Order your Toyota CI-4 15W-40 Diesel Motor Oil today with fast islandwide delivery and secure online payment options across Sri Lanka!

For official technical documentation on factory specifications, visit the Official Toyota Global Portal. Explore our complete selection of genuine Toyota engine oils in Sri Lanka.