CVL Valve seat lubricant and combustion enhancer Ref: 18 Valve seat lubricant and combustion enhancer Price: £9.15 (Including VAT at 17.5%) Size 250-ml (£7.79) Specification Based on same chemistry as Millers VSP Plus which is endorsed by FBHVC as a lead substitute to prevent V.S.R. Used by an increasing number of engine builders to compensate for the deterioration in pump fuel. Quantity: