Car 5 years old, 45k miles. Never any problems. few weeks ago, due to petrol shortages had to fill up with premium unleaded. always used normal unleaded previously. Since then can always smell petrol fumes whilst stood idle. Seems to be coming through ventilation system, as worse when blowers are on.At first thought it may be due to different petrol, but all premium fuel used and filled up since with normal. But smell of fumes still there. Not having any problems with fuel consumption, and exhaust not blowing. Anyone have any ideas ?? Should i be worried ??? TIA
