SKU: ATO-MT-AS503

AUTOOL AS503 Engine Oil Tester

Name: AUTOOL AS503 Engine Oil Tester
Brand: Premium Diagnostic Equipment
SKU: ATO-MT-AS503
Price: 99.00 AUD
Availability: InStock

$99.00

Pickup available at Gold Coast

Usually ready in 24 hours

Delivery and Shipping

Shipping Information

Orders placed before 12pm AEST Mon-Fri will be dispatched same day

Standard Shipping in Australia 2-9 business days - FREE

Express Shipping in Australia 1-3 business days - Shipped via Australia Post Express. In most cases you will get your order the next day if it was placed before 12pm but we can not guarantee this overnight service.

TNT Overnight Express - 1 business day if order is placed before 12pm.

To check freight costs enter your details and address at check out

Local Pick Up - Same day from Gold Coast warehouse providing we have stock on hand, please call us to confirm 07 3180 6771

Couriers we use - Most orders are shipped via Australia post. We may use TNT/FEDEX or Aramex depending on your location or preference.

Description

AUTOOL AS503 Engine Oil Quality Tester – Digital Display (Petrol & Diesel)

The AUTOOL AS503 Engine Oil Tester is a professional oil analysis tool designed for automotive inspection, servicing, and preventative maintenance. It accurately measures the transparency (transmittance) of engine oil in both petrol and diesel engines, helping identify contamination, impurities, and oil degradation.

By analysing oil condition in real time, the AS503 allows technicians and vehicle owners to make informed oil change decisions, preventing premature engine wear, breakdowns, and costly repairs ensuring your engine runs smoothly and efficiently.

Key Features

Optical Precision Oil Testing

Using advanced optical testing principles, the AS503 evaluates engine oil quality by measuring oil transparency. The clearer the oil, the better its condition, providing a fast, reliable assessment without laboratory testing.

The 2.8-inch high-definition backlit LCD screen displays results clearly in both bright daylight and low-light workshop environments.

Intelligent Sound & Visual Alerts

The AS503 provides clear oil change guidance based on transmittance levels:

100% – 60%: Oil condition is good – no change required
60% – 30%: Warning symbol displayed – oil change recommended
Below 30%: Audible beep alarm alerts you to change oil immediately

The display also shows real-time oil temperature (T) during testing.

Built-in Oil Temperature Measurement

An integrated temperature sensor measures and displays actual oil temperature, ensuring accurate readings within the normal operating temperature range and providing insight into engine load and condition.

Wide Oil Compatibility

Compatible with most petrol and diesel engine oils available on the market. Separate testing modes for petrol and diesel engines ensure more precise oil condition analysis.

High-Precision Optical Probe

Equipped with a high-precision optoelectronic sensor, delivering fast response times and highly accurate measurement results.

Flexible 800mm Hose Probe

The 800mm flexible probe easily bends to reach oil ports and dipstick tubes. Made from PTFE material, it offers:

Excellent oil resistance
Strong oxidation resistance
Outstanding corrosion resistance
Long service life

Ideal for quick, convenient testing in tight engine bays.

Ergonomic & Durable Design

The handheld body features a silicone-lined grip for comfortable, secure single-handed operation. Lightweight and durable, it’s built for daily workshop use.