![]() ![]() AUTOOL AS503 Automotive Engine Lubricant Tester is designed for automotive testing and maintenance field, mainly through the measurement of gasoline or diesel engine lubricant permeability to reflect the impurities and contaminants in the lubricant, and then diagnose the quality of the oil and the degree of performance, can effectively prevent the emergence of engine problems and failures, to ensure that the engine works normally and efficiently! It can effectively prevent engine problems and malfunctions and ensure normal and efficient engine operation
![]() AUTOOL always selects long-lasting and durable product materials, adheres to the production process of excellence, and upholds the spirit of revolution and innovation, committing to creating products with innovative and superior quality for users. Why Choose AUTOOL?
|
![]() |
![]() |
![]() |
![]() | ![]() | ![]() |
HIGH-PRECISION OPTIGAL PROBE The engine oil tester probe utilizes an integrated high-precision photoelectric sensor and temperature sensor to provide fast and sensitive response and more accurate measurement results. | TEMPERATURE DISPLAY The engine oil tester screen generates an analog bar graph for analysis, and an integrated temperature sensor inside the machine tests the oil temperature, making it easy to assess the engine's operating condition. | FLEXIBLE HOSE PROBE FOR CONVENIENTTESTING The 800mm long probe made of PTFE material, design offers a more flexible and convenient way to test in the hard-to- touch areas |
![]() | ![]() | ![]() |
COMPATIBLE WITH VARIOUS LUBRICANT OIL STANDARDS AS503 Engine Oil Quality Tester is suitable for most gasoline and diesel engine lubricants on the market. | LARGE LCD WITH HIGH DEFINITION Equiped with a backlit 2.8-inch LCD screen, instant display result, regardless of strong light or dark night, can intuitively and clearly shows the brake fluid data. | USER-FRIENDLY HANDHELD DESIGN The body's handheld portion is lined with silicone substrate,providing excellent grip & lightweight design for easy single-handed operation. |
CAUTION: 1. Please check the temperature displayed on the dashboard of your car before testing. The engine temperature must be below 60°C during the test. This product relies on optical detection probes to analyze the particulate content in oil. As a result, it is not suitable for analyzing automotive engine oils containing components such as molybdenum disulfide(MoS2), organic molybdenum, graphene, and similar substances |
![]() | ![]() |
![]() | ![]() |
Package Details 1pc *AUTOOL AS503 Engine Oil Tester Main Unit 1pc*Instruction manual ![]() |

