5 litres (4 litres + 1 litre) of semi-synthetic 10w40 Castrol Power-1 engine oil Castrol Power 1 conforms to the following specification: SAE10w40; JASO MA-2; API SN. This is a service kit to fit the Triumph Thunderbird Storm 1700 (1699cc) models (2011-2018)and theTriumph Thunderbird Nightstorm 1700 (1699cc) models (2015-2018) comprising the following parts.
