No its the pot-holes that make it a slow route , plus the 50kmh entering The Oaks
Reading that post about detergent oils made me think of the old Castrol slogan "Oils aint Oils"
I use the Castrol Magnatec 10w40 in my Cub (Kohler motor) , Victa (B&S motor) Chipper again B&S motor without any...