Why is my Ford Focus losing power while driving?

I recently noticed that my Ford Focus is having trouble maintaining its power while driving. It starts off fine, but after a few minutes on the road, it starts to lose power and struggles to accelerate. I've checked the fuel levels and there are no warning lights on. What could be causing this issue and how can I fix it?

Your Ford Focus may be experiencing a loss of power due to a clogged air filter or a faulty oxygen sensor. I would recommend getting these checked and replaced if necessary. Also, make sure to regularly maintain your car with oil changes and tune-ups to avoid any further issues.

I had a similar issue with my Ford Focus and it turned out to be a problem with the fuel injectors. It's important to have these regularly cleaned to prevent any buildup that can affect the performance of your car. I would also suggest getting your fuel system checked by a mechanic.