Engine Oil Quality Tester with LED Display | Auto Diagnostic
Engine Oil Quality Tester with LED Display | Auto Diagnostic
Engine Oil Quality Tester with LED Display
Keep your engine running at its best with this compact, easy-to-use Engine Oil Quality Tester. Using advanced optical sensing technology, this handheld tool lets you check your engine oil condition in seconds — no mess, no draining, no guesswork. Simply insert the probe into the oil dipstick tube and get an instant, accurate reading right on the bright LED display.
Whether you're a daily driver, weekend mechanic, or automotive enthusiast, this tool helps you stay ahead of oil degradation and make smarter maintenance decisions — all without leaving your driveway.
Key Features
- One-Button Operation: Simple, intuitive single-button activation for instant results.
- Optical Sensing Technology: Measures oil condition without removing oil from the engine — just insert the probe.
- LED Display: Clear, easy-to-read percentage readout for accurate oil quality assessment.
- Built-In Alarm: Audible alert triggers when oil quality drops below 30%, signalling it's time for a change.
- Long Flexible Probe: 800mm hose reaches deep into the oil dipstick tube with ease.
- Mini & Portable: Lightweight ABS construction — compact enough to keep in your glove box or toolkit.
- No Battery Pre-Installed: Runs on 4 × AAA batteries (not included), so you can use your preferred brand.
How to Read Your Results
- 100%: Brand new oil — excellent condition.
- 30%–100%: Normal operating range — oil is still effective.
- Below 30%: Alarm activates — time to schedule an oil change.
Specifications
| Material | ABS Plastic |
| Color | Yellow |
| Battery | 4 × AAA (not included) |
| Probe Diameter | 5.3mm |
| Oil Hole Requirement | Diameter > 6mm, Curvature < 30° |
| Hose Length | 800mm / 31.5 in |
| Total Height | 170mm / 6.7 in |
| Detection Type | Turbine Oil |
| Package Size | 250 × 210 × 60mm / 9.8 × 8.3 × 2.4 in |
| Package Weight | 405g / 0.9 lb |
| Country of Origin | Made in Mainland China |
Important Usage Notes
- Do not test if the engine temperature exceeds 60°C. Check your instrument panel thermometer before testing.
- Ensure the probe is clean before each test, and confirm the oil fully covers the probe tip during testing.
- For accurate readings, allow the engine to cool to below 60°C before inserting the probe.
What's in the Box
- 1 × Engine Oil Quality Tester
- 1 × Cleaning Brush
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Learn more: FuelEconomy.gov on vehicle maintenance
Frequently Asked Questions
Q: How does the engine oil quality tester work?
A: The tester uses an optical sensing probe inserted directly into the oil dipstick tube. It measures the light refraction properties of the oil to determine its condition and displays a quality percentage on the LED screen — no oil extraction required.
Q: What oil quality percentage means I need to change my oil?
A: A reading below 30% triggers the built-in audible alarm, indicating that the oil has degraded and an oil change is recommended. Readings between 30% and 100% are considered within the normal operating range.
Q: Is the engine oil tester compatible with all vehicles?
A: This tester is designed for vehicles with an oil dipstick hole diameter greater than 6mm and a curvature of less than 30°. It is suitable for most standard passenger cars and light vehicles with turbine oil systems. Always verify your vehicle's dipstick tube dimensions before use.
Q: What batteries does the engine oil tester require?
A: The tester requires 4 × AAA batteries, which are not included in the package. Standard alkaline AAA batteries are recommended for optimal performance.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.