Hi sirs/mams, need your inputs.

For the past three weeks when I do a cold start, my car produces choking sounds and vibrates more than usual. What I do is turn the engine off then start it again after minute. Usually it the engine will go back to normal on the third try.

I called MQA and reported th issue, then scheduled a checkup. Upon arrival i was told I need to leave the car there so they can replicate the problem. I said I need to use the car that day (not knowing I need to leave the car at the casa) so I will observe then if the problem occurs again, i will give them a call. I left, went to caltex to refuel, then went to Trinoma. arrived at the parking around 1pm, then went back to my car around 4pm. Now for the first time, my car won't start at all. After 5 minutes of trying to start the car it did start, then I drove staight to MQA. left my car there to be observed.

I gave them a call today (Monday Apr 18) to ask for updates, then to my surprise they said most probably they need to do something with the fuel tank but nothing specific yet They gave me an estimate of around 9K+ for the service/repair/fuel. But my car is only 9 months old, i brought it to them last Feb for it's 6th-month checkup, and been using the car almost everyday with an average daily run of 15km. BTW I use Caltex Silver/Gold 80% of the time, Total unleaded 20% of the time when i there is no Caltex station nearby.

Question is, how do I deal with this? My car is still under warranty, I have religiously took care of it, and am sure that gasoline will only go stale if it's stuck in the engine for 25 days and up.

Anyone who encountered the same problem? Or anyone who could suggest how to deal with this? Please advice. Thanks.