i am a proud owner of Passo 2010 model and using it for last 02 years initially i started with Rs. 1000/- HOBC in a full tank than moved to 100% HOBC and im getting 18km per litter with comfortable drive and less engine sound.
bhai HOBC say carbon deposit nahi hota infact its good for the car
use genuine oil and air filters with every oil change and use full synthetic engine oil like Zic A+ or Zic X7 or LiquiMoli 5w30
transmission oil after every 50,000km but im taking it to 60,000km for my car it depends on the oil condition and level.
plugs regularly check karwatay rahain after every 3-4 months jab ap tuning and throttle body wash karwain to.