This study aim to evaluate the influence of service quality, brand trust and relationship marketing on customer satisfaction and loyalty in lubricants selling industry in Taiwan- in the case of M brand product. This study applies business questionnaires to collection auto/motor workshops information. 67 valid questionnaires are collected. The key research approaches involved the sample structure analysis, narrative statistical analysis, reliability analysis, simple regression analysis method. The results indicate that service quality and relationship marketing has positive relationship with customer satisfaction, and customer satisfaction has positive relationship with customer loyalty. Brand trust has no significant impact with customer loyalty. Finally, this study provides practical findings regarding the provision of lubricants selling industry. Furthermore, the current findings can serve as a reference for future research.