Author / Research: Ehsan Ahmed Taj
Sector: Fuel, Energy & Lubricants
Published: January 2026
Disclaimer:
This image is an AI-generated illustration created for editorial and informational purposes only.
A Practical Guide by Fuel & Lube Private Limited
Engine oil is not just another fluid in your vehicle — it is the core protection system of your engine. High-quality engine oil keeps moving parts lubricated, reduces friction, controls temperature, and prevents harmful deposits from building up.
Over time, even the best oils — including Duckhams Engine Oil — break down due to heat, dust, and engine stress. Knowing when to change your oil is one of the easiest and most cost-effective ways to protect your engine and extend its service life.
Why Regular Engine Oil Changes Matter
Every engine operates under extreme pressure and temperature. Without fresh oil, metal components grind against each other, leading to rapid wear and overheating.
Quality lubricants such as Duckhams Lubricants, supplied by Fuel & Lube Private Limited, perform several essential functions:
- Lubrication: Minimizes friction between engine parts
- Cooling: Helps regulate engine temperature
- Cleaning: Carries away soot, sludge, and contaminants
- Protection: Prevents corrosion, rust, and premature wear
As oil ages, it loses viscosity and cleaning ability. Regular oil changes ensure your engine continues to run smoothly and efficiently.
Recommended Oil Change Intervals
Oil change frequency depends on engine type, oil grade (SAE), and operating conditions. Based on Pakistan’s climate and road environment, the following guidelines are recommended:
| Vehicle Type | Oil Change Interval |
| Petrol Passenger Cars | Every 5,000 – 8,000 km or 6 months |
| Diesel Engines & Commercial Vehicles | Every 3,000 – 6,000 km |
| Motorcycles | Every 2,000 – 3,000 km |
| Synthetic Oils (Ideal Conditions) | Up to 10,000 km |
Tip: Always follow the manufacturer’s recommendations and use the correct SAE viscosity such as 15W-40, 20W-50, or 10W-40, commonly offered in Duckhams Engine Oil ranges.
Pakistan Driving Conditions & Oil Life
Engines operating in Pakistan often face severe working conditions, which reduce oil life faster than normal.
Key factors include:
- High ambient temperatures
- Dusty and polluted environments
- Stop-and-go urban traffic
- Long idling hours in commercial fleets
For such conditions, Fuel & Lube Private Limited recommends shorter oil drain intervals and the use of trusted brands like Duckhams Lubricants, designed for durability and thermal stability.
Signs Your Engine Needs an Oil Change
Do not wait for engine damage. Watch for these warning signs:
- Dark or thick oil on the dipstick
- Oil or engine warning light on the dashboard
- Increased engine noise or knocking
- Burning oil smell inside or outside the vehicle
- Reduced fuel efficiency
If any of these appear, an immediate oil change is advised.
Choosing the Right Engine Oil
Selecting the correct oil grade and specification is critical for engine health. Popular SAE grades include:
- 15W-40 – Ideal for diesel engines and commercial vehicles
- 20W-50 – Suitable for older engines and high-temperature conditions
- 10W-40 – Better cold-start performance
Fuel & Lube Private Limited, an authorized lubricant supplier, provides a full range of Duckhams Lubricants, including:
- Engine Oils (Petrol & Diesel)
- Hydraulic Oils (HYD 46, HYD 68)
- Gear Oils (80W-90, 80W-140)
- Dielectric Oils for industrial use
All products meet API and OEM standards, ensuring long engine life and reliable performance.
Smart Oil Change Practices
For best results:
- Always replace the oil filter
- Inspect air and fuel filters
- Check for leaks around seals and gaskets
- Dispose of used oil responsibly
These small steps significantly improve engine reliability.
Final Words
An engine oil change may seem routine, but it is the foundation of engine protection. Whether you drive a personal car, manage a transport fleet, or operate industrial machinery, using the right oil at the right time makes all the difference.
At Fuel & Lube Private Limited, we proudly supply Duckhams Lubricants to Pakistan’s automotive, transport, construction, and industrial sectors.
Our commitment is simple:
To keep your engines running smoother, stronger, and longer.
