Castrol GTX 15W-40 1L Engine Oil - Superior Protection for Longer Engine Life

Purpose and Specifications

Castrol GTX 15W-40 is a premium mineral engine oil trusted worldwide to fight sludge buildup from heat, dirt, and short trips. Its Double Action formula cleans existing sludge and prevents new formation, keeping oil passages clear like unclogging arteries for better power and engine longevity.

This 15W-40 oil flows easily at cold starts down to -33°C to -36°C, protecting against wear when you turn the key. It stays thick and stable up to high operating temps around 150°C+, shielding pistons, bearings, and turbos from friction and breakdown.

• Meets key specs: ACEA A3/B4, API SL/CF, VW 501.01/505.00, MB 229.1, FIAT 9.55535-D2
• Ideal for gasoline and diesel cars, vans, LPG/CNG engines from 1995+ with 4-8 cylinders
• Reduces oil burn-off, minimizes deposits, extends engine life with anti-wear additives

When to Use / Replace?

Use in mixed fleets, older modern engines, or severe conditions like city stop-go, towing, or dusty roads. Perfect for workshops rationalizing stock.

• Replace every 8,000-12,000 km or 6-12 months for everyday driving
• Halve intervals (4,000-6,000 km) for heavy loads, extreme heat over 35°C, or frequent short trips under 10 km
• Shelf life: 4-5 years unopened in cool, dry storage

FAQ

Is Castrol GTX 15W-40 good for diesel engines?
Yes, it suits many diesel passenger cars and light vans per API CF and VW 505.00 specs, protecting turbos and reducing sludge.

Can I use it in hot climates?
Absolutely, its thermal stability handles engines up to 150°C+ without thinning, preventing wear in summer heat or towing.

What's the difference from synthetic oils?
This mineral premium oil costs less but delivers pro-level sludge protection for non-turbo daily drivers, with easy cold starts.