If you use Mobil 1 4T synthetic oil in your Tdub, there is a $12 rebate on 5 qts per the rebate form (here)....$15 if you get an Extended Performance Oil Filter + 5qts.
If you don't use Mobil 1, that's a discussion for another day.
O'Reilly's has Mobil 1 4T Racing synthetic oil for $8.99 a qt. I don't know if that is the regular price or if it is on sale. I saw it yesterday 8-1-'15.
Long live the internal combustion engine!
I think I saw the 5 quart jug at Walmart for $23. i'm planning on picking up a jug or 2 this month while on holidays in your great country, that oil is $17 a liter up here
2019 honda cb500x
2018 honda grom
2018 suzuki dr200