Hello po sa inyong lahat!
I currently own and drive a '12 Jazz 1.5 AT and i use Shell FuelSave Unleaded.
Ask ko lang po kung mas okay ba ang Petron XCS compared sa FS Unleaded in terms of Fuel Consumption? Kase kahit 1.5 lang ang makina ng Jazz malakas padin sa gasolina e. Pero malakas din naman sya humatak.
And wala bang Lead content ang Petron XCS? Eto kase nakalagay sa Driver's Manual.
Using petrol containing lead will damage your vehicle's emissions controls and engine. This contributes to air pollution.
Your vehicle is designed to operate on unleaded petrol with 91 Research Octane Number or higher.
PS I won't consider other brands because the agent told me to gas up ONLY at Shell or Petron.
Thanks sa mga magrereply!
Petron XCS has a higher octane level than Shell FS Unleaded. In my personal experience, the former is better specially on the high way since it has a higher octane level, but latter is cheaper. It makes acceleration easier because it burns faster, and it is cleaner. It somehow decreases the stress you put on your gas pedal for an extra speed.
Petron, Shell, and Caltex are selling lead-free gasoline/petrol.
You should follow the minimum octane of your vehicle, you will not want to hear its engine knocking!

Perhaps the reason why he told you to gas up only at Petron or Shell is because Shell and Honda are partners. While Petron's official car sponsor of the Media Edition of Xtra Mile Challenge is Honda Philippines.
Bosing Troytin; sa 2.0 litre petrol Mitsubishi Adventure ng pamilya namin, halos walang pinagkaiba ang fuel consumption ang paggamit ng Shell FuelSave Unleaded at Petron XCS.
Technically, there should be a difference.

Maybe some factors caused you not to notice the difference. I should agree however if you are comparing Petron Xtra Unleaded and Shell FS Unleaded.
Do you know that sometimes gasoline-station owners are getting their products not from their appropriate dealer. So you may actually get a Shell fuel save unleaded from Petron. Yes, seriously.

Whichever is cheaper. This is illegal though.
Hope this helps! God bless us all.