I changed the oil on my 2014 civic lx sedan and as soon as the drain bolt was off I immediately smelled gas. I have never noticed this on this car. I also measured the oil removed and it measured about half a quart low. The car has never burned oil before. I live in FL and car has 44000 miles. When i changed the oil out and it was halfway up the dipstick. Drove 40 miles and checked the oil level and it was 3/4 up the dipstick and already smelled like gas. Each time I checked the level 3 minutes after shutting the car off. Any ideas?