Duckhams is perhaps the most well-known British oil brand from the 60's and 70's, and still features its famous green colour. They were instrumental in the development of multigrade oils in the UK, and the famous yellow and blue logo adorned many competition cars of the period.

Duckhams
duckhams q 20w-50
Duckhams Classic Q20W-50
Duckhams Classic Q 20W-50, true to its history as “the engine’s choice” for later classics (1 gal, 20 Litres)
£29.95
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duckhams classic sae30
Duckhams Classic SAE30
Duckhams green winter-weight monograde for a wide variety of pre-1950 applications (1 gal)
£29.95
duckhams classic sae40
Duckhams Classic SAE40
Duckhams green summer-weight monograde for a wide variety of pre-1950 applications (1 gal)
£29.95