Xiamen Sinolook Oil Co., Ltd

Exclusive ADNOC Group III Distributor in China · Since 2020

ADNOC ADbase Group III Base Oil — 4 cSt, 6 cSt & 8 cSt

Premium VHVI base oil from ADNOC Refining. Viscosity Index 131–138, sulphur below 3 ppm, Noack as low as 2.5%. Engineered for GF-6, ACEA C3, MB-229 and dexos1 Gen 2 engine oil formulations. Sinolook is the exclusive distributor in China since 2020.

VI 131–138
Viscosity Index
<3 ppm
Sulphur Content
99.8%
Saturates
2.5%
Noack (8 cSt)
★ Exclusive Distribution Agreement

Sinolook is the only authorized ADNOC ADbase distributor in China

ADNOC Refining produces 500,000 metric tons of premium Group III base oil per year at Ruwais, UAE — marketed globally under the ADbase brand. ADNOC selects one exclusive distributor per major region:

GCC ADNOC Distribution
United States Penthol
Europe Chemlube
★ China Xiamen Sinolook Oil
2020
Exclusive Agreement Signed
500K
MT / year ADNOC capacity

Every Chinese lubricant manufacturer sourcing genuine ADNOC ADbase Group III base oil goes through Sinolook — with bonded storage at Yingkou, Nantong and Guangdong for fast delivery anywhere in China.

Sinolook is the exclusive distributor of ADNOC Group III base oil ADbase in China since 2020
About ADbase Group III

The premium base stock for modern engine oils

ADbase is ADNOC's flagship Group III base oil — produced through severe hydrocracking and hydro-isomerization of high-paraffinic crude oil at the ADNOC Refining complex in Ruwais, UAE.

With viscosity index 131–138, sulphur below 3 ppm, saturates at 99.8% and Noack volatility as low as 2.5%, ADbase delivers the performance modern OEMs demand for fuel-efficient, emission-compliant engine oils.

Often classified as VHVI (Very High Viscosity Index) base oil, ADbase enables formulators to meet stringent specs like API SP, ILSAC GF-6, GM dexos1 Gen 2, ACEA C3 and MB-229.31 — without resorting to fully synthetic PAO. ADNOC Refining is ISO 9001:2015 certified and signed to the ATIEL Code of Practice.

ADNOC ADbase Group III base oil product range — 4 cSt, 6 cSt and 8 cSt samples

Ultra-High VI

VI 131–138 — best-in-class viscosity stability across temperatures.

Low Volatility

Noack 2.5–10.9% — meets GF-6 fuel-economy requirements.

OEM-Approved

API SP, ILSAC GF-6, ACEA C3, MB-229.31, dexos1 Gen 2.

Consistent Quality

500,000 MT/year ADNOC production — proven batch-to-batch consistency.

Technical Specifications

ADbase 4 cSt, 6 cSt & 8 cSt — full quality report data

Typical values from ADNOC's official quality reports. Each shipment is accompanied by an original ADNOC Certificate of Analysis plus third-party SGS inspection report.

Property ADbase 4 cSt ADbase 6 cSt ADbase 8 cSt Test Method
AppearanceClear & BrightClear & BrightClear & BrightASTM D4176
KV @ 100°C (mm²/s)4.306.047.88ASTM D445
KV @ 40°C (mm²/s)19.432.147ASTM D445
Viscosity Index131138137ASTM D2270
Pour Point (°C)−21−18−18ASTM D5949
Noack Volatility (wt%)10.95.62.5ASTM D5800
CCS @ −30°C (mPa·s)135034007100ASTM D5293
Saybolt Color+28+27+25ASTM D156
Flash Point (°C)230230265ASTM D92
Sulphur (mg/kg)<3.0<3.0<3.0ASTM D2622
Saturates (wt%)99.899.899.8ASTM D7419
Aromatics (wt%)<0.2<0.2<0.2ASTM D7419
Acid Number (mg KOH/g)<0.1<0.1<0.1ASTM D664
Density @ 15°C (g/mL)0.82660.83700.8420ASTM D4052

Data from ADNOC ADbase Typical Quality Report. ADNOC Refining Base Oil unit is ISO 9001:2015 certified and signed to the ATIEL Code of Practice (Base Stock Quality Assurance guidelines).

Grade Selection Guide

Choose the right ADbase grade for your formulation

Each ADbase grade is optimised for specific engine oil viscosity classes. Click "Request quote" for batch-current COA and Asia-Pacific delivery pricing.

ADbase 4 cSt
Light viscosity · KV100 = 4.30
Low-Vis Engine Oils
VI131
Pour Point−21 °C
Noack10.9%
CCS @ −30°C1350 mPa·s
Flash Point230 °C
Best for0W-16, 0W-20, 5W-20 passenger car engine oils targeting GF-6B, dexos1 Gen 2. Also used in CVT fluids and modern ATF.
ADbase 6 cSt
Workhorse · KV100 = 6.04
★ Most Popular
VI138
Pour Point−18 °C
Noack5.6%
CCS @ −30°C3400 mPa·s
Flash Point230 °C
Best for5W-30 and 5W-40 PCMO formulations meeting ACEA C3, MB-229.31, API SP. The highest-VI grade in the ADbase range and the workhorse for premium engine oil blending.
ADbase 8 cSt
Heavy duty · KV100 = 7.88
HDDEO & Heavy Engine Oils
VI137
Pour Point−18 °C
Noack2.5%
CCS @ −30°C7100 mPa·s
Flash Point265 °C
Best for5W-40, 10W-40 PCMO and heavy-duty diesel engine oils (CK-4 / FA-4 with 30 or 100% ADbase). Industry-leading low Noack of 2.5%.
How ADbase Is Made

The ADNOC hydrocracking & hydroisomerization process

ADbase uses high-paraffinic crude oil as feedstock, going through hydrocracking, pre-distillation, hydro-isomerization and product distillation to deliver consistently high VI and ultra-low sulphur Group III base oil.

ADbase production process From heavy vacuum gas oil to Group III base stock at ADNOC Refining, Ruwais Heavy vacuum gas oil HVGO feedstock Hydrocracker High-pressure H₂ reaction Pre-distillation unit Removes light fractions Side products Naphtha, jet, gas oil Hydro-isomerization Catalytic dewaxing for high VI Product distillation Cuts into viscosity grades ADbase Group III grades ADbase 2 cSt VI 115 ADbase 3 cSt VI 120 ADbase 4 cSt VI 131 ADbase 6 cSt VI 138 ADbase 8 cSt VI 137

ADNOC manufactures base stocks in accordance with the ATIEL Code of Practice (Base Stock Quality Assurance guidelines). ADNOC Refining Base Oil unit is ISO 9001:2015 certified.

Product Consistency

Proven batch-to-batch quality

ADNOC's commitment to consistent ADbase quality is verified by year-over-year monitoring of key parameters. Stable VI and low Noack volatility translate directly into predictable performance in your finished lubricant.

ADbase 6 cSt — Viscosity Index Stability

Consistently above spec minimum (VI ≥ 125) across production years
144 140 136 132 SPEC MIN 125 138 140 137 2017 2018 2019 Production Year

ADbase 6 cSt — Noack Volatility

Consistently well below spec maximum (Noack ≤ 8.0 wt%)
8.0 6.5 5.0 3.5 SPEC MAX 8.0 5.6 6.2 5.8 2017 2018 2019 Production Year

Chart data from ADNOC ADbase brochure. ADbase has demonstrated consistent VI and Noack performance year over year — directly translating into predictable lubricant formulation results.

OEM Specifications

Engine oil formulation approvals using ADbase

ADbase has obtained formulation approvals from major OEMs across North America and Europe. The list below reflects approvals already obtained — additional certifications are in progress.

✓ Obtained Approvals

Verified formulation certifications using ADbase as the Group III base stock

North America — PCMO

0W-20API SN-Plus / ILSAC GF-5
5W-20API SN-Plus / ILSAC GF-5
5W-30API SN-Plus / ILSAC GF-5
10W-30API SN-Plus / ILSAC GF-5
0W-20, 5W-20, 5W-30GM dexos1 Gen 2
0W-16API SP / ILSAC GF-6B
0W-20, 5W-20, 5W-30API SP / ILSAC GF-6A
ATFGM DEXRON-VI

Europe & HDDEO

5W-30ACEA C3-16
5W-40ACEA C3-16
5W-30MB-229.31
5W-40MB-229.31
10W-30 HDDEOCK-4 / FA-4 (30% ADbase)
15W-40 HDDEOCK-4 / FA-4 (30% ADbase)
5W-30 HDDEOCK-4 / FA-4 (100% ADbase, in progress)
MoreACEA C2/C5, MB-229.51/52, BMW LL04, VW (in progress)

Visit the ADNOC official site for the latest formulation approvals. Final OEM approvals depend on the additive package and formulation by the lubricant blender.

Applications

Where ADbase Group III delivers

ADbase enables formulators to meet the most demanding modern engine oil specifications — for fuel economy, emission compliance, and OEM approvals — across passenger car and heavy-duty diesel applications.

ADbase Group III base oil for premium passenger car engine oils GF-6 and dexos1
ADbase 4/6 cSt · PCMO
Premium passenger car engine oils
0W-16, 0W-20, 5W-20, 5W-30 and 5W-40 formulations meeting API SP, ILSAC GF-6, ACEA C3, GM dexos1 Gen 2 and MB-229.31.
ADbase Group III for heavy-duty diesel engine oils HDDEO CK-4 FA-4
ADbase 8 cSt · HDDEO
Heavy-duty diesel engine oils
5W-30, 10W-30 and 15W-40 HDDEO meeting API CK-4 / FA-4 with 30% or 100% ADbase formulations. Industry-leading 2.5% Noack at 8 cSt.
ADbase Group III for automatic transmission fluid ATF and CVT applications
ADbase 4 cSt · ATF
Modern ATF & CVT fluids
GM DEXRON-VI and equivalent ATF specifications. Low-vis 4 cSt ADbase enables the wide thermal range modern transmissions require.
ADbase Group III as PAO substitute in synthetic blends
ADbase 6/8 cSt · Synthetic Blends
Semi-synthetic & synthetic blending
Cost-effective alternative to PAO in many full-synthetic formulations. Used in industrial gear oils, compressor oils, and high-performance greases.
Industry Comparison

ADbase vs other Group III brands

How ADNOC ADbase compares to other major Group III base oil brands available in the Asia-Pacific market. Specifications are publicly available data.

Property (4 cSt grade) ADNOC ADbase 4 SK YUBASE 4 Shell GTL 4
KV @ 100°C (mm²/s) 4.30 4.24 4.34
Viscosity Index 131 128 136
Noack (wt%) 10.9 13.5 11.2
Pour Point (°C) −21 −15 −18
Sulphur (ppm) <3 <3 <1
Production origin Ruwais, UAE Ulsan, S. Korea Qatar (GTL)
China availability Exclusive · Sinolook Multiple traders Limited

Comparison based on publicly available product data sheets. ADbase offers competitive technical performance with the advantage of exclusive China distribution through Sinolook — eliminating supply chain layers and providing direct ADNOC authentication.

Packaging & Logistics

Bonded delivery anywhere in China

ADbase ships from ADNOC Refining in Ruwais directly to Sinolook bonded storage at Yingkou, Nantong and Guangdong — with onward delivery anywhere in China. Asia-Pacific destinations served through Singapore and Malaysia hubs.

Drum (200 L)

80 drums per 20' container

Flexitank (24 MT)

Per 20' container · single-use

ISO Tank (20–22 MT)

Heated, insulated · reusable

Bulk Vessel

1,000+ MT · direct shore-to-shore

FAQ

Frequently asked questions

What is Group III base oil?
Group III base oil is hydrocracked and hydroisomerized paraffinic base oil with over 90% saturates, less than 0.03% sulphur and a viscosity index of 120 or higher. Often called VHVI (Very High Viscosity Index) or marketed as "semi-synthetic", Group III is the modern base stock for premium passenger car engine oils, fuel-efficient lubricants and OEM-approved formulations requiring excellent low-temperature performance and low volatility.
Is Sinolook the official ADNOC distributor in China?
Yes. Sinolook is the exclusive distributor of ADNOC Group III base oil (ADbase) in China since 2020. This is published in the official ADNOC ADbase brochure alongside ADNOC's other regional partners:
GCC — ADNOC Distribution
United States — Penthol
Europe — Chemlube
China — Xiamen Sinolook Oil Co., Ltd.
What is the difference between ADbase 4 cSt, 6 cSt and 8 cSt?
The number refers to kinematic viscosity at 100°C:
ADbase 4 cSt (VI 131) — for low-vis engine oils 0W-16, 0W-20, 5W-20
ADbase 6 cSt (VI 138) — for 5W-30, 5W-40, ACEA C3 formulations
ADbase 8 cSt (VI 137) — for 5W-40, 10W-40, HDDEO with industry-leading 2.5% Noack

All three grades share sulphur <3 ppm, saturates 99.8% and Saybolt color >+25.
What OEM specifications does ADbase support?
ADbase has obtained formulation approvals across major automotive specifications:
API: SN-Plus, SP
ILSAC: GF-5, GF-6A, GF-6B
GM: dexos1 Gen 2, DEXRON-VI ATF
ACEA: C3-16
Mercedes-Benz: MB-229.31
HDDEO: CK-4 / FA-4 (30% or 100% ADbase content)

Additional approvals for ACEA C2/C5, MB-229.51/52, BMW LL04, and VW 504/507 are in progress.
What is the difference between ADbase and SK YUBASE?
ADbase and SK YUBASE are both Group III base oils with similar viscosity grades. ADbase is produced by ADNOC Refining in Ruwais (UAE) using high-paraffinic crude oil, ISO 9001:2015 certified and ATIEL Code of Practice compliant. SK YUBASE is produced by SK Enmove in Ulsan (South Korea).

Both have comparable technical performance. ADbase offers competitive Asia-Pacific delivery from the Middle East and — uniquely in China — exclusive distribution through Sinolook, eliminating supply chain layers and ensuring direct ADNOC authentication.
How is ADbase quality verified for each shipment?
Every ADbase shipment to Sinolook is inspected by SGS at four checkpoints:
1. Shore tank inspection at ADNOC Refining loading port (with tank sealing)
2. Pre-discharge re-inspection at Chinese destination port
3. Pipeline cleaning verification
4. Post-discharge SGS report from bonded tank

Original ADNOC Certificate of Analysis is included with every batch, plus third-party SGS Certificate of Quality.
What is the minimum order quantity for ADbase?
Minimum order quantity is typically one full container (about 20 metric tons) for first-time buyers. Smaller trial orders may be possible by negotiation. Bonded storage at Yingkou, Nantong and Guangdong allows quick delivery anywhere in China — typically within 5–7 days from order confirmation.
Can I become a sub-distributor or formulation partner?
Yes — Sinolook works with major Chinese lubricant manufacturers and regional distributors. For sub-distribution or technical formulation partnerships, contact sales@sinolook.com with your business profile, regional coverage, and annual volume requirements. We typically respond with a tailored partnership proposal within 48 hours.
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As the exclusive China distributor of ADbase Group III base oil since 2020, Sinolook offers direct ADNOC authentication, bonded China storage, SGS verification on every shipment, and 24-hour response on technical and commercial inquiries.

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