Product Overview

The K6 Performance Tier CH-4 is the value-engineered, universally compatible diesel engine oil in the ROCKEFELLER diesel range — the product that delivers proven heavy-duty diesel protection at the most competitive price point. Formulated from premium quality base oil with an internationally advanced additive package, the K6 is specifically designed for super heavy-duty turbocharged diesel engines and provides comprehensive protection for the vast global fleet of diesel engines that operate without DPF or SCR aftertreatment systems.

API CH-4 was introduced in 1998 and established critical requirements for diesel engine oils to handle the challenges of higher-speed, higher-power diesel engines operating on fuel with sulfur content up to 0.5% by weight. CH-4 represented a significant advancement over the earlier CG-4 specification, with improved soot handling, better oxidation resistance, enhanced corrosion protection, and improved valve train wear protection. Despite the introduction of newer API categories (CI-4, CJ-4, CK-4), CH-4 remains one of the most widely used diesel oil specifications in the world, particularly in:

• Developing and emerging markets where pre-EGR/DPF vehicles dominate the fleet
• Regions with higher-sulfur diesel fuel where CH-4’s robust sulfur-handling chemistry is essential
• Markets where price sensitivity is the primary purchasing driver
• Off-highway and industrial applications where emissions aftertreatment systems are not required
• Older vehicle fleets manufactured before EGR/DPF requirements

The K6 is backward compatible with all earlier API diesel “C” category specifications (CG-4, CF-4, CF-2, CF, CE, CD-II, CD, CC, CB, CA), meaning it can serve virtually any diesel engine ever manufactured. This extraordinary breadth of application, combined with competitive pricing and reliable protection, makes the K6 the ideal foundation product for building ROCKEFELLER’s diesel oil business in new markets.

The K6 is manufactured to international quality standards with a five-year shelf life and is available in both 4-liter tins and 18-liter buckets.

Key Functional Features and Performance Benefits

★ Premium Quality Base Oil and International Advanced Additive Formulation — Specifically Designed for Super Heavy-Duty Turbocharged Diesel Engines:
The K6 is built on a premium quality base oil foundation that provides the thermal stability, viscosity-temperature characteristics, and longevity required for heavy-duty diesel engine service. Unlike basic mineral oils, the K6’s premium base oil undergoes advanced refining processes that remove impurities, reduce aromatic content, and improve oxidation resistance. The international advanced additive formulation is specifically calibrated for the demands of super heavy-duty turbocharged diesel engines — engines that produce higher combustion pressures, greater thermal loads, and more aggressive blow-by contamination than naturally aspirated or lighter-duty engines.

★ Good Anti-Wear Protection with Solid Oxidation Stability:
The K6’s anti-wear additive system provides reliable, consistent protection for all critical engine wear surfaces:

• Cylinder liner and piston ring interface: Maintains the seal and prevents excessive bore wear
• Camshaft lobes and valve followers: Protects against the high-contact-pressure wear that causes valve train degradation
• Main and connecting rod bearings: Prevents bearing surface contact under heavy loads
• Turbocharger shaft and thrust bearings: Protects against the extreme temperatures and speeds of turbocharger operation
• Timing gears and gear train components: Reduces gear wear and maintains proper timing

The solid oxidation stability ensures the oil resists breakdown under thermal and oxidative stress, maintaining its protective properties and viscosity characteristics throughout the recommended drain interval. This stability is particularly important in regions where diesel fuel quality varies and higher-sulfur fuels introduce additional oxidative challenges.

★ Excellent Cleaning Performance with Effective Sludge Control:
The K6’s detergent and dispersant additive system delivers excellent cleaning performance that keeps critical engine surfaces — particularly piston crowns, ring lands, ring grooves, and valve deck areas — free of carbon deposits, varnish, and lacquer. The effective sludge control system keeps soot, oxidation products, and other contaminants suspended in the oil, preventing them from settling and forming the thick, passage-blocking sludge that can cause oil starvation, component failure, and even catastrophic engine damage.

In older diesel engines and engines operating under severe service conditions (dusty environments, frequent overloading, extended idle periods, short-trip operation), sludge formation is a persistent threat. The K6’s cleaning and dispersancy performance provides a meaningful margin of protection against these conditions, keeping engines cleaner and more reliable.

★ Compatible Catalyst Protection — Protect Catalyst Converter, Reduce Exhaust Emissions:
While CH-4 was developed before the widespread adoption of DPF and SCR aftertreatment systems, many diesel vehicles worldwide are still equipped with basic oxidation catalysts and three-way catalytic converters. The K6 is formulated to be compatible with these catalyst systems, minimizing the release of catalyst-poisoning compounds into the exhaust stream and helping preserve converter efficiency. This compatibility supports emissions compliance in markets with vehicle inspection programs and contributes to reduced environmental impact.

★ Effective Sediment Prevention with Stable Lubrication Film at All Operating Speeds:
The K6 prevents the formation and accumulation of solid sediments — including metallic wear particles, carbon particles, and additive degradation products — within the oil system. This keeps oil passages, galleries, oil cooler tubes, and filter elements clear, ensuring unrestricted oil flow throughout the engine. The oil maintains a stable, continuous lubrication film between all moving surfaces at all operating speeds, from low-RPM idle to full-speed, full-load highway operation. This film stability is essential for:

• Bearing protection during sustained high-speed operation: Long-haul highway driving, extended uphill grades, and heavy towing
• Turbocharger protection during shutdown: After high-load operation, the turbocharger continues spinning at high speed while oil pressure drops as the engine returns to idle — the K6’s film stability ensures continued bearing protection during this critical period
• Cold-idle protection: During cold morning warm-up periods, the oil must flow quickly to all components while also maintaining sufficient film thickness to prevent metal contact

★ Universal Backward Compatibility — One Product for the Entire Diesel Fleet:
As an API CH-4 certified product, the K6 is backward compatible with all earlier API “C” category specifications: CG-4, CF-4, CF-2, CF, CE, CD-II, CD, CC, CB, and CA. This means a single product can serve virtually any diesel engine ever manufactured — from classic trucks and vintage equipment of the 1970s to modern non-EGR turbocharged diesel engines. This universal compatibility dramatically simplifies inventory management for distributors, reduces stocking complexity for retailers, and provides a reliable default option for workshops servicing diverse diesel engine populations.

★ Robust Sulfur Handling — Designed for Higher-Sulfur Fuel Markets:
The CH-4 specification was specifically developed to handle diesel fuel with sulfur content up to 0.5% by weight (5,000 ppm). In many developing markets, diesel fuel sulfur content remains significantly higher than in developed markets (which have largely transitioned to ultra-low sulfur diesel at 10-15 ppm). The K6’s formulation includes a robust alkaline reserve and acid neutralization chemistry specifically designed to handle the increased sulfuric acid loading produced by higher-sulfur fuels. This makes the K6 particularly well-suited for markets in Sub-Saharan Africa, parts of Southeast Asia, South Asia, Central Asia, and other regions where fuel quality remains variable.

Technical Specifications

Parameter	K6 CH-4
API Classification	CH-4
Performance Tier	K6 (Value-Performance)
Base Oil Type	Premium Quality Base Oil
Additive Technology	International Advanced Formulation
Anti-Wear Protection	Good
Oxidation Stability	Solid
Sludge Control	Effective
Catalyst Compatibility	Yes (Basic Catalyst/TWC)
Sediment Prevention	Effective
Film Stability	Stable at All Speeds
Sulfur Fuel Handling	Up to 0.5% (5,000 ppm)
Backward Compatibility	CG-4, CF-4, CF-2, CF, CE, CD-II, CD, CC, CB, CA
Available Packaging	4L Tin, 18L Bucket, 208L Drum
Shelf Life	5 Years

Application Areas and Compatible Vehicles/Equipment

On-Highway Heavy-Duty Commercial Vehicles (Non-EGR/DPF Equipped)

• Chinese Heavy Trucks (National III and Earlier): FAW Jiefang J5, J6 (early models); Dongfeng Tianlong (early models), EQ series; Sinotruk HOWO, Steyr King; SHACMAN F2000, Delong; Beiben NG80, V3; Foton Auman ETX (early models); JAC Gallop, Junling; CAMC Hualing Star, Valin Star; North Benz; Dayun (early models)
• Global Truck Brands (Pre-EGR Models): Mercedes-Benz Actros/Atego (pre-Euro IV); Volvo FH12/FH16 (pre-Euro IV); Scania 114/124 (pre-Euro IV); MAN TGA; DAF 95XF; IVECO Eurostar, Eurotech; Renault Premium (early); Tatra, Kamaz, MAZ (CIS market)
• Japanese Trucks (Pre-EGR): Isuzu CXZ/CYZ, Giga (early); Hino Profia/Ranger (early); Mitsubishi Fuso Super Great/Fighter (early); Nissan Diesel/UD Quon (early), Big Thumb
• Indian Trucks: Tata Prima, Signa, LPT series; Ashok Leyland Captain, Boss, Guru; BharatBenz (early models); Eicher Pro series; Mahindra Blazo; Force (Trax, Traveller)

Medium and Light-Duty Commercial Diesel Vehicles

• Pickup Trucks: Toyota Hilux (all diesel generations), Land Cruiser (diesel); Nissan Navara/Frontier, Patrol (diesel); Mitsubishi L200/Triton (pre-DPF); Ford Ranger (pre-DPF); Mazda BT-50 (pre-DPF); Isuzu D-Max (pre-DPF); Great Wall Wingle, Steed; JAC T6, T8; Dongfeng Rich; ZX Auto Grand Tiger; Foton Tunland
• Vans and Minibuses: Toyota HiAce (diesel), Coaster; Nissan Urvan/NV350; Mitsubishi L300/Delica; Hyundai H-1/Starex, County; KIA Bongo, Pregio; Mercedes-Benz Sprinter (pre-DPF), Vito; Ford Transit (pre-DPF); Iveco Daily (pre-DPF); Jinbei Haise, Granse; King Long, Golden Dragon minibuses
• Light-Duty Trucks: Isuzu NLR/NMR/NPR/NQR series (pre-DPF); Mitsubishi Fuso Canter (pre-DPF); Hino Dutro (pre-DPF); Hyundai HD65/HD72; Tata Ace/Super Ace/Ultra; Foton Ollin, Aumark (early); JAC HFC, X series; Dongfeng Duolika, Captain; YUEJIN

Buses and Coaches (Pre-EGR/DPF)

• Chinese Buses: Yutong (older diesel models); King Long (older models); Golden Dragon (older models); Zhongtong; Ankai; Shaolin, Mudan, Youyi (budget brands)
• International Buses: Older Mercedes-Benz, Volvo, Scania, MAN bus platforms; Indian-manufactured Ashok Leyland, Tata Marcopolo buses; Thai-assembled Hino and Isuzu buses

Construction and Earthmoving Equipment

• Excavators (All Sizes): Caterpillar 300 series (pre-Tier 3); Komatsu PC series (pre-Tier 3); Hitachi EX/ZX series (pre-Tier 3); Kobelco SK series (pre-Tier 3); SANY SY series; XCMG XE series; Liugong CLG series; Lonking CDM series; Doosan/Daewoo DH/DX series; Volvo EC series (pre-Tier 3); Case CX series; Hyundai HX/R series; Sunward, Lovol, Yuchai, Jingong, Hengte (Chinese budget excavators)
• Wheel Loaders: All major brands and Chinese manufacturers — SDLG, Liugong, XCMG, Lonking, Shantui, Chenggong, Lovol, LuGong
• Bulldozers: Caterpillar D series (pre-Tier 3); Komatsu D series (pre-Tier 3); Shantui SD13/SD16/SD22/SD32; HBXG (Xuangong) TY series; Yishan TY series
• Motor Graders: Caterpillar 12M/14M/16M; Komatsu GD series; XCMG GR series; Liugong CLG series; SANY STG series; Shantui SG series
• Compactors and Rollers: BOMAG, Hamm, Caterpillar, Dynapac, XCMG, Liugong, Sany — all non-emissions controlled models
• Concrete Equipment: Concrete mixer trucks (SANY, Zoomlion, XCMG, Liugong); concrete pumps; concrete batching plants

Mining Equipment

• Surface Mining: Haul trucks (Caterpillar 773/777/785/789/793; Komatsu HD785/HD985/HD1500; BelAZ; Terex/NHL; XCMG XDE; SANY SKT); drilling rigs; shovels and rope excavators
• Underground Mining: Load-haul-dump (LHD) vehicles; underground haul trucks; bolters and drill jumbos; continuous miners; shuttle cars
• Quarrying: Crushers, screeners, conveyors, and quarry trucks

Agricultural Equipment

• Tractors (All Horsepower Ranges): John Deere (older models); Massey Ferguson; New Holland; Case IH; Kubota; Mahindra; TAFE; Sonalika; Escorts; Lovol; YTO; Dongfanghong; Changfa; Shifeng; Fengshou; Wuzheng — covering everything from 15 HP garden tractors to 400+ HP articulated four-wheel-drive units
• Irrigation Pumps: Diesel-powered water pumps for agricultural irrigation, flood control, and municipal water supply
• Rice Millers and Grain Dryers: Diesel-powered agricultural processing equipment
• Fishing Boat Engines: Diesel marine engines powering artisanal and commercial fishing vessels

Power Generation (All Sizes)

• Standby and Prime Power Generators: All manufacturers (Cummins, Caterpillar, Perkins, Volvo Penta, Yuchai, Weichai, Shangchai, Doosan, MTU, Deutz) — pre-Tier 3 emissions models and applications where aftertreatment systems are not required
• Portable Generators: Smaller diesel generators (5–100 kVA) used for construction sites, events, market stalls, mobile welding, and residential backup
• Telecommunications Backup: Diesel generators at cellular tower sites, switching stations, and data centers
• Remote Power: Mining camps, military field operations, humanitarian aid stations, and other off-grid installations

Marine and Inland Waterway

• Commercial Fishing Vessels: Diesel engines (50–1,000+ HP) powering trawlers, seiners, long-liners, and other commercial fishing boats
• Inland Waterway Barges and Ferries: River transport vessels, passenger ferries, and cargo barges
• Coastal Cargo Vessels: Small-to-medium coastal cargo ships and tankers
• Marine Engine Brands: Yuchai Marine, Weichai Marine, Cummins Marine, Caterpillar Marine, Baudouin, Doosan, Mitsubishi

Stationary Industrial Equipment

• Air Compressors: Diesel-powered portable and stationary compressors (Atlas Copco, Ingersoll Rand, Sullair, Kaishan, Liuzhou Fuda)
• Welding Equipment: Diesel-powered welding generators (Lincoln, Miller, ESAB)
• Hydraulic Power Packs: Mobile hydraulic units for construction, demolition, and rescue operations
• Pumping Equipment: Diesel-powered dewatering pumps, mud pumps, and slurry pumps for construction, mining, and municipal applications

Target Customers and B2B Solutions

Emerging Market National Distributors — The Entry-Point Product:
The K6 CH-4 is the foundational product for establishing ROCKEFELLER’s diesel oil presence in new markets. Its universal API CH-4 compatibility, competitive pricing, and broad applicability make it the ideal product to introduce the brand, build initial distribution networks, and generate the sales volume that funds market development. As the market matures and vehicle fleets modernize, distributors can then progressively introduce the K8 (CI-4), K9 (CJ-4), and K10 (CK-4) tiers to serve the evolving needs of their customer base.

Volume Wholesalers and Regional Distributors:
Large-volume diesel oil wholesalers serving networks of workshops, fleet operators, and retailers in developing markets can build their core business around the K6. Its broad compatibility and competitive pricing generate the fastest inventory turns and the highest volume throughput. Available in 4L, 18L, and 208L packaging formats to serve retail, workshop, and bulk-use channels.

Fleet Operators — Older and Mixed-Age Fleets:
Commercial fleet operators running vehicles from multiple generations — some with aftertreatment systems, most without — can use the K6 as their universal diesel oil for all non-EGR/DPF vehicles while reserving the K8 or K9 for their newer EGR/DPF-equipped units. This two-product standardization approach dramatically simplifies fleet lubrication management.

Construction and Mining Companies — High-Volume, Cost-Sensitive Operations:
Construction and mining companies operating large fleets of older equipment (which may represent 50-80% of the equipment fleet in developing market operations) can standardize on the K6 for all pre-Tier 3 equipment, achieving significant cost savings compared to using CI-4 or CJ-4 products where they are not required.

Agricultural Markets — Farming Equipment and Rural Transport:
The K6’s universal compatibility makes it the ideal product for agricultural markets where a single diesel oil may need to serve tractors, irrigation pumps, grain processing equipment, generator sets, pickup trucks, and commercial vehicles. Distributors can supply one product that serves all of these applications.

Government Tenders and Institutional Procurement:
Government agencies, military logistics commands, and institutional buyers frequently specify API CH-4 15W-40 in their procurement tenders for diesel lubricants. The K6’s documented compliance with API CH-4 and GB11121-2006 executive standards provides the specification conformity required for public procurement processes.

Roadside Mechanics and Informal Workshop Sector:
In many developing markets, the majority of commercial vehicle servicing is performed by independent mechanics and small workshops. The K6’s accessible pricing, reliable quality, and familiar CH-4 specification make it the ideal product for this critically important market segment — where brand reputation is built one satisfied customer at a time.

Private Label and Co-Branding:
The K6 is particularly well-suited for private-label and co-branding partnerships with regional distributors, auto parts chains, fleet operators, and fuel station networks who wish to market a branded CH-4 diesel oil under their own trade name.

Humanitarian and Development Organizations:
UN agencies, international NGOs (World Food Programme, UNHCR, Médecins Sans Frontières, etc.), and development organizations operating diesel vehicle and generator fleets in challenging environments can standardize on the K6 for its universal compatibility, proven quality, and global availability.

Why Choose K6 CH-4 for Your Business?

1. API CH-4 Certified with Universal Backward Compatibility — serves virtually any diesel engine manufactured, from vintage equipment to modern non-EGR turbocharged engines, with a single SKU
2. Premium Quality Base Oil — delivers superior protection compared to basic mineral oils, with better thermal stability and longer service life
3. International Advanced Additive Formulation — proven technology that provides reliable anti-wear, oxidation, sludge, and deposit control
4. Designed for Higher-Sulfur Fuels — handles fuel with up to 0.5% sulfur content, making it ideal for markets where fuel quality varies
5. Effective Sludge and Deposit Control — keeps engines clean and oil passages clear, preventing the failures that cost fleets money
6. Catalyst Compatible — supports basic catalyst and TWC systems, helping vehicles pass emissions inspections
7. Stable Lubrication Film at All Speeds — provides consistent protection from idle to full load, including turbocharger protection during shutdown
8. The Most Competitive Price Point — the lowest per-liter pricing in the ROCKEFELLER diesel range, enabling maximum market penetration in price-sensitive segments
9. 5-Year Shelf Life — ideal for remote distribution, strategic inventory, and markets with irregular supply chains
10. Private Label Available — flexible branding options for distributors building their own product lines

ROCKEFELLER Diesel Engine Oil Range — Complete Tier Comparison

Feature	K10 (CK-4)	K9 (CJ-4)	K8 (CI-4)	K6 (CH-4)
API Classification	CK-4	CJ-4	CI-4 / CI-4 PLUS	CH-4
Performance Tier	K10 Ultra-Premium	K9 Premium	K8 High-Performance	K6 Value-Performance
Base Oil	PAO Full Synthetic	Full Synthetic	High-Quality Synthetic	Premium Mineral
SAPS Level	Controlled Low-Ash	Low-S, Low-P	Standard	Standard
DPF Compatible	Yes	Yes	Not Required	Not Required
SCR Compatible	Yes	Yes	Not Required	Not Required
EGR Protection	Yes	Yes	Yes	Basic
TWC/DOC Protection	Yes	Yes	—	Basic Catalyst
Soot Containment	Advanced	Strong	Advanced	Standard
Shear Stability	Super	Excellent	Excellent	Good
Evaporation Loss	Ultra-Low	Ultra-Low	Low	Standard
Seal Compatibility	Excellent	Excellent	Good	Standard
Extended Drain	Maximum	Long	Extended	Standard
Sulfur Fuel Handling	ULSD Only (≤15 ppm)	≤500 ppm	≤500 ppm	≤5,000 ppm
Backward Compatibility	All “C” Categories	CI-4+ and earlier	CH-4 and earlier	CG-4 and all earlier
Primary Target	Modern Euro IV+ Fleets, Premium OEMs	Euro IV Luxury Vehicles, Premium Fleets	Heavy-Duty Fleets, EGR Engines	Budget Markets, Older Fleets, Universal
Price Positioning	Ultra-Premium	Premium	Mid-Premium	Value/Economy