Verdict: Petron TurboDiesel vs Shell V-Power Diesel vs Caltex Diesel with Techron

Let's score it by 1, 2, and 3; 1 lowest

Petron Shell Caltex

Price 1 2 3

Power 2 3 1

Fuel Economy 1 2 2

Total: 4 7 6

Shell is currently the best choice for Sora, with the most significant improvement in power. Fuel consumption is around the same with Caltex. And as for the price, 2.50php i think is worth what it adds to power and performace. Petron TurboDiesel is just too expensive.