I'm one of those people who likes to make realistic community lots, mostly just because it's fun & I like taking story pictures. I really want to make myself a gas station but am having a hard time finding a lot of objects for it. I found a few, but most aren't really what I'm after, some are a bit too grungy and some I'm just not really into. I'll leave them here though in case anyone wants them.

http://www.akisima.de/blog/?p=5384
http://houses-sims3.blogspot.com/20...as-station.html
http://www.thesimsresource.com/down...-go/id/1035892/
http://www.thesimsresource.com/down...tion/id/951176/

https://www.thesimsresource.com/mem.../search/petrol/
https://www.thesimsresource.com/dow...ion/id/1060201/
https://www.thesimsresource.com/dow...ent/id/1028291/

https://www.thesimsresource.com/dow...ice/id/1133349/
https://www.thesimsresource.com/dow...ion/id/1007733/


Some other searchable things just like 'gas service', 'petrol station' will helps you

The Fast Lane SP came with some objects that could be useful. These too.

Here are a few I've used with no problems or conflicts:

From TSR
Little Village Gas and Go a 20x20 gas station with mini mart and WA cash register

From The Sims Exchange
Eds Garage and Mini Mart 30x30 lot
Crazy Al's Got Gas on a 20x15 lot Sure hope Al has Air Freshener on hand