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All Journal Journal of Automotive and Mechanical Applied Technology
Yoga Guntur Sampurno
Universitas Negeri Yogyakarta, Indonesia
Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Analysis of the effects of oil and fuel type on motorcycle fuel consumption vario 125 CC ESP FI Firmansyah Arya Pangestu; Yoga Guntur Sampurno; Beni Setya Nugraha
Journal of Automotive and Mechanical Applied Technology Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v1i1.801

Abstract

The efficiency of fuel consumption in motorcycles is determined by multiple factors, such as the type of oil and fuel utilized. The careful choice of these two elements is essential for enhancing engine performance and reducing operational expenses. This study examines the impact of various oil and fuel types on the fuel consumption of the Honda Vario 125 cc ESP FI motorcycle, with particular attention to the relationship between engine oil viscosity and fuel quality. The study involved conducting experiments with a range of engine oil combinations, specifically 10W-30 and 20W-40, alongside different fuels like Pertalite and Pertamax, each exhibiting distinct octane ratings and combustion properties. The methodology included systematic and thorough testing in controlled environments, where factors like distance and load were standardized to guarantee precision and consistency. The results indicated clear variations in fuel efficiency among the tested combinations. The application of 10W-30 oil in conjunction with Pertalite fuel resulted in a 0.76% enhancement in efficiency when compared to the use of 20W-40 oil with the same fuel type. In a comparable analysis, 10W-30 oil demonstrated a 3.87% increase in efficiency over 20W-40 oil when used with Pertamax fuel. In the analysis of fuel types, Pertamax demonstrated a 16% increase in efficiency compared to Pertalite when used with 10W-30 oil, and a 12.52% increase in efficiency with 20W-40 oil. The results highlight the benefits associated with the utilization of high-quality, low-viscosity oils and higher-octane fuels in achieving improved fuel economy. In summary, the most effective combination for achieving fuel efficiency and cost savings is the use of 10W-30 oil alongside Pertamax fuel. This pairing is advised for Honda Vario 125 cc ESP FI users aiming for improved performance and lower fuel costs.
Design of hino series wheel bearing grease filling tool to improve efficiency performance at Hino MPM Solo Alfian Bagas Pramuditya; Moch Solikin; Yoga Guntur Sampurno
Journal of Automotive and Mechanical Applied Technology Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v1i1.814

Abstract

Efficiency in the vehicle maintenance process is a major concern considering that it can have an impact on saving time, improving accuracy and minimizing operational costs. The use of innovative tools is expected to increase efficiency in the vehicle maintenance process. The current manual lubricant filling process proves to be time-consuming, requires extra labor, and is prone to inconsistency, which can lead to bearing damage. This research focuses on the design and manufacture of a lubricant filling tool for wheel hub bearings on Hino Series vehicles, which aims to improve maintenance efficiency at Hino Mitra Pratama Mobilindo Solo. The tool is designed using the ADDIE model, which includes needs analysis, design, development, and testing stages. The tool consists of a frame, arm holder, lubricator housing, and pressure plate, all of which are designed to ensure proper lubrication and minimize contamination. Tests show that the tool significantly reduces lubricant filling time, with a 418% increase in efficiency compared to the manual method. It also delivers more consistent results, improving work efficiency and productivity.
Development of special service tools tracker kingpin hino series 300 to increase technician work efficiency Adhe Satria; Yoga Guntur Sampurno
Journal of Automotive and Mechanical Applied Technology Vol. 2 No. 1 (2025)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v2i1.1423

Abstract

This study focused on the design, development, and evaluation of a Special Service Tool (SST) created explicitly for maintaining kingpin components in Hino Series 300 trucks. The research focused on the challenges and safety issues encountered by technicians stemming from the lack of specialized tools for kingpin removal. This often led to extended service times, variable repair quality, and a heightened risk of damaging components. To address these challenges, the research employed the ADDIE development model, which comprises five stages: Analysis, Design, Development, Implementation, and Evaluation. In the design phase, 3D modeling was performed using SolidWorks, and Finite Element Analysis (FEA) was conducted to verify the tool's structural integrity under various load scenarios, reaching up to 19,613 N. The SST was made from ASTM A36 steel, recognized for its mechanical strength and ease of manufacturing. The simulation results demonstrated that the structure stayed within safe limits for both stress and deformation, achieving a minimum safety factor of 1.1. The implementation took place at PT. MPM Hino Yogyakarta, where field testing showed a significant enhancement in technician efficiency. The SST cut down kingpin maintenance time from 360 minutes to only 42.08 minutes, achieving an impressive 88.3% reduction in time spent. Testing for effectiveness, based on feedback from technicians and supervisors, revealed a high level of user satisfaction, particularly in terms of safety, usability, and ergonomic design. The SST tracker kingpin provides a dependable, effective, and secure option for maintaining commercial vehicles. The successful application of it at a Hino service center highlights its practical benefits and the potential for wider implementation throughout the automotive maintenance sector. Additional improvements could involve ergonomic adjustments and the ability to accommodate various truck models, thereby facilitating broader use.
Development and performance evaluation of a car brake bleeding tool to reduce labor and service time at PT. UMC Suzuki Ahmad Yani Surabaya Raihan Ramadhani; M. Khaniful Annas; Yoga Guntur Sampurno
Journal of Automotive and Mechanical Applied Technology Vol. 2 No. 2 (2025)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v2i2.2467

Abstract

The objectives of this research are: (1) Designing a brake bleeding tool that will be used for the process of bleeding car brakes at the UMC Suzuki Ahmad Yani Surabaya workshop, (2) Knowing the effectiveness of the brake bleeding tool when used at the UMC Suzuki Ahmad Yani Surabaya workshop, (3) Finding out work efficiency after work is carried out using the brake bleeding tool at the UMC Suzuki Ahmad Yani Surabaya workshop. The design of the car brake bleeding tool was developed through analysis, design, development, implementation, and evaluation, resulting in a specialized tool that enhances the mechanic's work at the PT UMC Suzuki Ahmad Yani Surabaya workshop. This tool helps mechanics bleed car brakes, which previously required conventional tools and at least 2-3 additional mechanics. With the developed brake bleeding tool, mechanics only need to work with one person. This tool can also reduce the time required for brake bleeding, which is usually 17 minutes, to just 9 minutes. The development of a brake bleeding tool proved very effective in expediting brake bleeding maintenance at the UMC Suzuki Ahmad Yani Surabaya workshop. With this tool, manual bleeding tools are no longer required, making work more effective without additional labor. This tool produces a time efficiency of 55%. This tool makes the brake bleeding process more accurate and reliable, providing consistent quality assurance and, overall, increasing the productivity and effectiveness of workshop operations.
Co-Authors Adhe Satria Alfian Bagas Pramuditya Beni Setya Nugraha Firmansyah Arya Pangestu M. Khaniful Annas Moch Solikin Raihan Ramadhani