news release

chevron oronite to present at 2023 JSAE/SAE powertrains, energy and lubricants international meeting

SAN RAMON, Calif., August 23, 2023 – Chevron Oronite will give two presentations at 2023 JSAE/SAE Powertrains, Energy and Lubricants International Meeting, which will be held from August 29 – September 01 in Kyoto, Japan at the Kyoto Terrsa. The theme of this year’s meeting is “Technical Challenges for a Carbon Neutral Society by 2050” with the aim of discussing a wide range of trends and the latest technologies intended to realise carbon neutrality.

Hisanori Onouchi, AEO senior formulator, Chevron Oronite will present “Understanding Degradation of Engine Oil Additives and its Effect on Abnormal Combustion in a Gasoline Engine” on Tuesday, August 29 at 5.00pm. Onouchi will share the results from the investigation done by Chevron Oronite on the degradation of zinc dithiophosphates (ZnDTP) and molybdenum dithiocarbamates (MoDTC) in gasoline engine operation and effects of the degradation on low speed pre-ignition performance.

Dr Chung-Hao Kuo, fuels formulator, Chevron Oronite will present “Aftermarket Fuel Additives and their Effects on GDI Injector Performance and Particulate Emissions” on Wednesday, August 30 at 4.45pm. This presentation will show why nitrogen based gasoline detergents are the most effective in reducing injector fouling and also showcase a new formulation developed by Chevron Oronite that targets to reduce injector fouling in GDI engines, that results in higher level of injector cleanliness and reductions in particulate matter emissions.

About Chevron Oronite

Chevron Oronite is a leading developer, manufacturer and marketer of fuel and lubricant additives, helping provide solutions to customers globally. Headquartered in San Ramon, California (USA), Chevron Oronite maintains regional offices in Houston (Americas Region), Paris (Europe-Africa-Middle East Region), and Singapore (Asia-Pacific Region); operates manufacturing sites in Belle Chasse, Louisiana (USA), Gonfreville (France), Singapore, Ningbo (China) and Mauá (Brazil); an affiliated blending and shipping plant in Omaezaki, Japan; technology centers in the USA, France, the Netherlands, Japan and China and has interests in additive companies operating in other locations, including India.  Learn more about about Chevron Oronite at

Chevron Oronite is comprised of numerous affiliates that are indirect, wholly-owned subsidiaries of Chevron Corporation. For simplicity in this news release, the terms “Chevron Oronite” and/or “Oronite” are used as abbreviated references to Chevron Corporation affiliates that are part of the Chevron Oronite business unit. Nothing in this document is intended to override or supersede the corporate separateness of these entities.

About Chevron

Chevron is one of the world’s leading integrated energy companies. We believe affordable, reliable and ever-cleaner energy is essential to enabling human progress. Chevron produces crude oil and natural gas; manufactures transportation fuels, lubricants, petrochemicals and additives; and develops technologies that enhance our business and the industry. We aim to grow our traditional oil and gas business, lower the carbon intensity of our operations and grow new lower carbon businesses in renewable fuels, hydrogen, carbon capture, offsets and other emerging technologies. More information about Chevron is available at