The best price found is £6.99 from Tooled Up.com.

Stockist Catalogue Product Name Price
Tooled Up.com Ryobi RGA-002 Semi-Synthetic 2 Stroke Engine Oil for 2 Petrol Power Tools £6.99
Tooled Up Ryobi RGA-002 Semi-Synthetic 2 Stroke Engine Oil for 2 Petrol Power Tools £6.99