hi all.

i am a new owner for CKD Mazda 3 HS

last week just done my first service and i remained using the oil that the service given.

So after service, i found out my car is quite slow to pick up compared to before service.

Even the FC is quite weak compared to before service
Before service : can goes up to 580km
After service : uptodate only 500km

both 50% city 50% highway

i also found out that the current FC will raised to 59 L / km during first gear around 3000 rpm. But before service dont have such issue, max only 30 L / Km and better pick up.

anyone experienced this before?