JYK—8型汽车“节油环”和长螺纹火花塞配套,由上海市能源研究所、上海市汽车运输科研所、上海内燃机研究所和上海市科技情报研究所等四单位联合研制,于82年8月在上海市通过技术鉴定,节油率达5%左右,经过一年多的推广试用,市内外用户普遍反映简单易行,节油效果较好。 JYK-8 automobile “fuel economy ring ” and long-threaded spark plug supporting, by the Shanghai Energy Research Institute, Shanghai Automotive Transport Research Institute, Shanghai Internal Combustion Engine Research Institute and Shanghai Institute of Science and Technology and other four units jointly developed in 82 years in August through the technical appraisal in Shanghai, fuel-efficient rate of about 5%, after more than a year to promote the trial, the general internal and external users reflect simple and easy, fuel-efficient effect is better.