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CASTROL CLASSIC XL 20W-50

Castrol Classic XL 20W-50 is a high-quality mineral-based engine oil that has been formulated to meet the demands of classic and vintage vehicle engines manufactured from the 1960s to the 1980s. As a premium multigrade engine oil, Castrol Classic XL 20W-50 offers excellent oil consumption properties to minimise reapplication and extended engine wear protection to keep vital components safe.


Designed to deliver dependable lubrication and wear protection, this multigrade oil relies on a period-correct additive profile with modern technology, including carefully selected additives ideally suited to older technology and classic car engines. In this way, it enables a very high level of performance for older engines without the risk of harming original components such as white metal bearings and cork, paper, or rubber gaskets.


To enjoy the minimal level of engine wear and the right combination of mineral oil plus selected additives, shop Castrol Classic XL 20W-50 today.

Grouped product items
Product Name Qty
CASTROL CLASSIC XL 20W-50 (1 Litre)
£9.68 £8.07
CASTROL CLASSIC XL 20W-50 (1 Gallon Tin)
£42.80 £35.67
Out of stock
CASTROL CLASSIC XL 20W-50 (12 x 1 Litre Pack)
£121.81 £101.51
CASTROL CLASSIC XL 20W-50 (20 Litre Drum)
£168.80 £140.67
CASTROL CLASSIC XL 20W-50 (208 Litre Drum)
£1,710.06 £1,425.05

CASTROL CLASSIC XL 20W-50

Why Choose Castrol?

Castrol Classic XL 20W-50 is a conventional multigrade engine oil that offers strong all-round performance and is precision-engineered for older technology and classic car engines that demand higher viscosity. This 20w50 engine oil has been formulated with high-quality mineral oil plus carefully selected additives, meaning that it meets the needs of classic engines from the base upwards.


Choosing Castrol Classic XL 20W-50 for your vintage or classic car means you will benefit from premium engine wear protection and optimal performance, both of which are vital to the longevity of older engines. If 20W-50 engine oil is the right grade and consistency for your vehicle, there is no better product to meet your needs than the Classic XL 20W-50 formulation from Castrol.


To further protect classic engine components, the oil includes anti-wear additives that reduce metal-to-metal contact under load. This extends engine life and maintains performance, especially under the stop-start conditions common in classic motoring.


Castrol Classic XL 20W-50 offers higher viscosity when cold compared to modern low-viscosity oils, which makes it ideally suited for petrol and diesel engines in classic cars and motorcycles. This high viscosity delivers superior oil pressure and film strength on start-up. Castrol Classic XL continues to offer effective lubrication in warmer temperatures without excessive thinning, which helps reduce the high oil consumption and leakage that are common issues in older engines.


For classic vehicle owners, selecting the right oil is a crucial part of engine maintenance. Castrol Classic XL 20W-50 supports older technology and classic car engines with the confidence of a heritage brand that understands period formulations while also delivering quality mineral oils for modern engines.

Why Choose Broughton Lubricants?

At Broughton Lubricants, we offer Castrol Classic XL 20W-50 as part of our extensive classic oils and engine oils collections. You can also explore our gear oils and coolants to find the perfect combination and complete your vehicle’s maintenance needs.


Broughton Lubricants brings decades of experience supplying automotive and industrial lubricants to the table and supports customers with even the most complicated applications. Our team is on hand to recommend the right product based on your specifications, even for classic car and motorcycle engines where compatible solutions may be more difficult to find. Thanks to our longevity in the industry, we can help you to identify direct replacements or alternatives for discontinued or upgraded products, including for pre-1980 classic car engines.


For advice on choosing the right product for a classic car, or to find out whether Castrol's Classic XL 20W-50 engine oil is compatible with your vehicle, contact the technical specialists at Broughton Lubricants today. Call us on 03300 555 109 or use our online enquiry form for expert guidance on the demands of your application.