ZSS 10w40 High performance semi-synthetic 4 stroke motorcycle engine oil. Combination of the highest quality and latest performance additives in synthetic and mineral base stocks Ref: ZSS 10w40 High performance semi-synthetic 4 stroke motorcycle engine oil. Combination of the highest quality and latest performance additives in synthetic and mineral base stocks Price: £21.78 (Including VAT at 17.5%) Size 1-litre (£5.46) 5-litre (£18.54) Specification Developed for use in 4 stroke motorcycle, kart and scooter engines requiring a 10w/40 viscosity oil. API SL/CF and A3/B3 Quantity: