สำหรับผมนะครับ
Before : Isuzu Dragoneye 1997, 2800Turbo,M/T, 1500kg ==> Diesel = 9-12 km/l @ General driving
After : 1JZ GE, 1998, A/T, 1570kg ==> Gasoline 91 = 8-10 km/l @ General driving, NGV = 9-12 km/kg.ngv. @ General driving...
General driving ===>> Urban driving, Motor way, Toll way, General Road, No load, 90-130 km/hr
ผมว่า NGV ประหยัดกว่าครับ