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· Registered
Mazda 3 GT 2010
3 Posts
Your fuel system is clogged up. Did you ever clean the injectors with a good Fuel injector cleaner. Maybe even Lacquer Thinner in the fuel.
Ethanol clogs up the injectors.Try cleaning your injectors, or take it to a shop to have them cleaned.

I usually put Dr.Detroit IX-40 ( DRDETROIT ) in my gas tank every 4 months, and I stopped putting Regular 87 Gas with 10% ethanol. Since I stopped, my 3 runs way better, smoother and better fuel mileage.
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