Castrol XXL40


A traditional summer-weight mongrade oil for many classic applications (1 gal)

SKU: CASXXL40 Categories: , ,


A high quality monograde engine oil recommended for pre-1950 cars and pre-1970 motorcycles under road and competition conditions.

Castrol XXL 40 is also recommended for many single and multi-cylinder pre 1970 classic motorcycles for engine and gearbox lubrication.

Must not be mixed with Castrol R30 or R40 or with any other synthetic castor or synthetic based oils.

Characteristics Castrol XXL 40
SAE Viscosity 40
Viscosity Index (VI) 96
Performance Level API: SB
Zinc as ZDDP (ppm) Not available
Base Oil Group Grp I
Detergent-Dispersant Package Low

We pack all orders with great care but cannot completely eliminate the risk of cosmetic damage to metal containers during delivery.  If you’re purchasing this Castrol product as a collectable item, you may prefer to collect from our Bicester store or next show (see ‘Ordering & Shipping’ for more details).

Additional information

Weight 5 kg


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