Does the heat and traffic here make injector cleaner more important than back home?

[brettcallahan]

Back in the UK I never thought twice about fuel injectors, just put petrol in and drove. But since moving to Dubai and sitting in stop start traffic on SZR every morning in 45 degree heat, I've started wondering if the conditions here are harder on the engine than I'm used to. My car's a bit thirstier than the official figures suggest and the idle isn't as smooth as it used to be. A colleague mentioned fuel injector cleaner advantages for Dubai drivers specifically, things like the heat and fuel quality making deposits more likely, which honestly hadn't occurred to me. So now I'm thinking it might be worth doing regularly rather than as a one off. Do any long term residents here use it as part of their routine, and has it made a noticeable difference to fuel economy or smoothness?