Press Release Cosmo Energy Holdings

Cosmo Oil Lubricants to Revamp its “COSMO FILLIO” Series of Next-Generation Gasoline Engine Oils for COSMO Service Stations~Ensuring Compliance with the SQ/GF-7 Standard and Launching New Product “COSMO FILLIO 0W-8¹”~

January 28, 2026

Cosmo Energy Holdings Co., Ltd.

Cosmo Oil Lubricants Co., Ltd.

Cosmo Oil Lubricants Co., Ltd. (hereafter, “the Company”), a subsidiary of Cosmo Energy Holdings Co., Ltd., will revamp the lineup of products in its “COSMO FILLIO” service station oil² series. The Company will begin selling the series at COSMO service stations nationwide as products compliant with SQ/GF-7, the new API/ILSAC³ standard. In addition, the Company will launch “COSMO FILLIO 0W-8” as a new product in the series.

Overview of Product Lineup

(Overview of Product Lineup)

In recent years, amid tightening environmental and fuel efficiency regulations, domestically marketed passenger car engines have become more compact and powerful. Accordingly, performance requirements for engine oils have grown increasingly demanding. Against this backdrop, SQ/GF-7 came into effect in March 2025 as the new API/ILSAC engine oil performance standard².

The “COSMO FILLIO” series comprises a lineup of 100% synthetic gasoline engine oils developed in response to evolving standards and market needs. Existing SQ/GF-7 standard-compliant viscosity grades in the series have demonstrated performance exceeding the criteria values in the latest API certification engine tests—such as fuel efficiency tests, LSPI⁴ prevention tests, and timing chain wear prevention tests—and provide outstanding engine protection. In addition, “COSMO FILLIO 0W-8,” the newest product in the series, soon to be launched, is designed to meet the fuel efficiency requirements of next-generation vehicles and is compatible with passenger cars sold in Japan.

Going forward, the Company remains committed to contributing to the realization of a sustainable society through the development of products that meet customers' diverse needs.

Overview of Products

Product names
(7 oil types)

COSMO FILLIO 0W-8
COSMO FILLIO SQ 0W-16
COSMO FILLIO SQ 0W-20
COSMO FILLIO SQ 5W-30
COSMO FILLIO SQ 10W-30
COSMO FILLIO SQ 5W-40
COSMO FILLIO SQ/CF BASIC 5W-30

Packaging

20-liter pails, 200-liter drums
(COSMO FILLIO 0W-8 is available exclusively in 20-liter pails)

API/ILSAC standard

API SQ/ILSAC GF-7 (except COSMO FILLIO 0W-8)

Attributes

  1. This series comprises next-generation, high-performance, fuel-efficient gasoline engine oils formulated with 100% synthetic oils (except for COSMO FILLIO SQ/CF BASIC 5W-30).
  2. All products are compatible with increasingly common direct-injection turbo engine-powered vehicles, and demonstrate stable engine performance.
  3. All engine oils are highly reliable and have passed various engine tests required for API certification, including wear tests.
  4. All products (except for COSMO FILLIO 0W-8) meet the latest API/ILSAC standard, delivering an optimal balance of fuel efficiency and environmental performance.
  1. COSMO FILLIO 0W-8 does not meet the SQ/GF-7 standard.
  2. Service station oils: Automotive lubricant products sold by COSMO service stations
  3. API (American Petroleum Institute) standards: Engine oil performance standards based on API service categories
    ILSAC (International Lubricant Specification Advisory Committee) standards: Standards based upon the API service categories, bringing additional performance requirements in terms of fuel efficiency
  4. LSPI (Low Speed Pre-Ignition): Refers to an abnormal combustion event in engines operating under low-speed, high-load conditions, where fuel ignites prior to spark plug firing

 

（PDF）

 

(End)

 

(The official language for Cosmo Energy Group's filings with the Tokyo Stock Exchange and Japanese authorities, and for communications with our shareholders, is Japanese. We have posted English versions of some of this information on this website. While these English versions have been prepared in good faith, Cosmo Energy Group does not accept responsibility for the accuracy of the translations, and reference should be made to the original Japanese language materials.)