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- USA
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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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
4.1 ★★★★★
Based on 2005 reviews
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Product Reviews
★★★★★ 5
Size up, great quality
Number of Items: 3, Color: Grey/Blue/Sea, Size: X-Small
I ordered the XS and I have to say they run small. They fit my 2 year old not 6 year old. So size up. But honestly love the quality of Amazon essential shirts. I buy these for my kids pjs they are very soft
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Reviewed in the United States on December 24, 2025
★★★★★ 5
Comfy and Cool Shark Shirt
Number of Items: 1, Color: Ivory Sharks, Size: X-Small
We live near the beach, so I love finding ocean themed clothing for my little grandson. He loves this colorful swimming sharks crew neck t-shirt. He says it looks "cool." The cotton blend material is soft and and gentle against his skin. It's breathable and slightly stretchy. . The stitching is straight and consistent with no loose threads. We have fun talking about the different sharks, and the shirt looks great with his everyday jeans, joggers, or shorts. If you want some growing room, I suggest ordering a size up. The 5T is just a little long and roomy in the shoulders for my grandson who usually wears size 4. For laundering, I turn the shirt inside out and wash on cold to preserve the print. I haven't noticed any shrinkage or fading. I've been drying it on a warm setting (though cool is ideal), but I’m pretty careful not to leave it in the dryer too long to avoid wrinkles. He's been wearing it since his birthday in February, and so far, it's kept its shape, and seems to resist stains. If you have a little one that loves sharks, this check out this comfy ocean themed crew neck.
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Reviewed in the United States on May 2, 2026
★★★★★ 4
Size up
Number of Items: 3, Color: Grey/Blue/Sea, Size: X-Small
Good quality but definitely size up one size.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
True to size
Number of Items: 1, Color: White, Size: Large
This white undershirt was exactly what we ordered. The fit and quality met expectations, and it works perfectly for everyday wear. Simple, reliable, and a great value.
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Essential Tees
Number of Items: 5, Color: Navy, Size: XX-Large
Nice quality for some basic, essential tees. The ratio cotton to spandex makes it very comfortable to wear. Great value.
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Reviewed in the United States on May 10, 2026