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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
AUTOOL AS503 2.8 inch Backlit Display Car Engine Oil Tester Lubricating Oil Quality Analyzer, AS5031. More Powerful Detection Range: Transmittance Detection: Measure the oil transmittance (0 100%) through optical technology, visualize the degree of oil contamination, to help users scientifically judge the oil change cycle. 2. Dual mode Adaptation: The engine oil quality tester supports both gasoline engine and diesel engine oil type detection, covering the needs of mainstream car models. Switchable degree Celsius Fahrenheit units, real time display
1. More Powerful Detection Range: Transmittance Detection: Measure the oil transmittance (0-100%) through optical technology, visualize the degree of oil contamination, to help users scientifically judge the oil change cycle.2. Dual-mode Adaptation: The engine oil quality tester supports both gasoline engine and diesel engine oil type detection, covering the needs of mainstream car models. Switchable degree Celsius/Fahrenheit units, real-time display of oil temperature, to ensure that the engine is at a safe temperature (less than 60 degree Celsius) during testing.
3. Precision Test and Sensitive Probe: The testing hose is made of oil-resistant material, which prevents chemical oil corrosion and prolongs the service life. Length of 800mm, easy to go deep into the dipstick hole or oil sump sampling. Adopting high-precision sensors, stable signal transmission ensures no interference with the light transmission rate data.
4. Easy Instant Read: 2.8 inches high resolution screen, instant display result, large display with backlight, easy and clear reading in sun or night. The LCD screen intuitively displays the light transmission rate, temperature, oil type and status prompts (e.g. warning symbols), without professional interpretation.
5. Humanized handheld design: The handheld part of the body is made of silicone substrate, which has excellent hand feel and lightweight design, and can be easily operated with one hand.
6. Working voltage: 6V
7. Working temperature: -10~60 degrees Celsius
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1942 reviews
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Product Reviews
★★★★★ 4
Great watch
Color: Gray/Digital/Gray
Great everyday watch—lightweight, easy to read, and does everything I need without being complicated.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Very nice watch.
Color: Black/Digital/Black/Yellow
Very nice watch.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Great Multi-Function Watch
Color: Gray/Digital/Gray
I absolutely love my Timex Ironman watches. I have had many over a very long period of time.
Wonderful set of functions for the price.
Very affordable.
Easy to use. Lasts a long time. Very easy to read in standard lighting. I like the Indiglo when needed, but do not use it too often.
Absolutely love the ability to set a repeat timer to remind me to do something at a fixed interval, or to keep me on task for a fixed period of time.
Great to be able to set three independent alarms.
Potential to capture a huge number of splits with the stopwatch.
I purchased this watch to replace a similar model with a dead battery. I have replaced batteries in the past, but it is quicker and easier to buy a replacement watch. I am saving my old watches for that day in the future when the Ironman model may no longer be available. I expect this will be my watch of choice for the rest of my life.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Just fine if you have simple needs...
Color: Black/Digital/Black/Green
Exactly what I needed: a cheap, durable wrist watch. The only thing it was lacking were instructions, but about 5 minutes of messing with the buttons got it set up
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Nice watch
Color: Black/Digital/Black/Green
Good watch
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Reviewed in the United States on April 30, 2026