Is this easy to use for someone who's not a mechanic?

Absolutely! It's designed for everyone.Just wipe the probe, select your engine type(gasoline or diesel), dip it in the oil, and press the button.You'll get a clear "OK" or "Replace" result on the large screen in seconds—no technical knowledge needed.

How accurate is it compared to just looking at the oil color?

More accurate than the human eye, our optical sensor analyzes microscopic oil contaminants to give definitive percentage and temperature readings—eliminating maintenance guesswork.

Does it work on both old and new cars, and for diesel trucks?

Yes! It is universally compatible with the majority of gasoline and diesel engine oils on the market. Separate testing modes ensure accurate assessment for each engine type, whether it's your daily car, SUV, or diesel pickup truck.

Why should I buy this instead of just changing my oil regularly?

It helps you change oil smartly,not just regularly.It prevents you from changing oil too early (saving money)or too late (preventing engine damage).It's the fastest way to know if your oil is still good,optimizing both engine health and your wallet.

How do I know this is a reliable brand?

The AS503 is built with professional-grade components like a PTFE-coated probe and a robust optical sensor. It comes with a clear manual and is trusted by DIYers and professionals for its simple, dependable readings. Your satisfaction is guaranteed.

As503 Petrol Diesel Engine Oil Tester With 80cm Ptfe Probe

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 102.41

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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Description

⚡ Stay ahead of engine wear with instant oil clarity!

DUAL FUEL COMPATIBILITY - Seamlessly switch between petrol and diesel modes to match your vehicle’s exact oil specs.
CLEAR INTUITIVE DISPLAY - Backlit 2.8-inch LCD shows all critical data including temperature in °C/°F and battery status.
EXTENDED REACH PTFE PROBE - Flexible, oil-resistant 80 cm probe ensures easy access to deep dipstick tubes without damage.
PRECISION OPTICAL OIL TESTING - Instantly measures light transmission & oil temperature for real-time engine health insights.
USER FRIENDLY SAFE OPERATION - Designed for quick, no-mess testing—just cool the engine, clean the probe, and immerse fully.

The QPKING AS503 Engine Oil Tester offers professional-grade optical testing for petrol and diesel engines, featuring a long 80 cm PTFE probe and a crisp 2.8-inch backlit LCD. It delivers quick, accurate light transmission and temperature readings, empowering proactive maintenance without lab delays.

Specifications

ASIN	B0CG99ZLX7
Best Sellers Rank	270,064 in Automotive ( See Top 100 in Automotive ) 42 in Oil Pressure Testers
Brand	QPKING
Customer Reviews	4.2 4.2 out of 5 stars (133)
Date First Available	17 May 2024
Guaranteed software updates until	unknown
Item Weight	372 g
Item model number	AS503 engine oil tester
Manufacturer	QPKING
Manufacturer part number	AS503 Motoröl-Qualitätsprüfgerät
Model	AS503 Motoröl-Qualitätsprüfgerät
Package Dimensions	25.5 x 14.2 x 5.89 cm; 372 g

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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I loved the variety of products available. Will definitely shop again.

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The product exactly matches the description. Very satisfied with my purchase.

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€ 102.41

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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AS503 Petrol Diesel Engine Oil Tester with 80cm PTFE Probe

Description

Specifications

Common Questions