You don't have to but you can. They are often priced competitively. They can also tell you what you need and site you can go to to get mitt info on brands, synthetics, etc. Very helpful, and not judge for ford owners
If you go to Autozone or O'Rileys auto parts....they will tell you what you need
Check your fusion manual..you are probably out of warranty by now.. However, I would look that up or call Ford service and ask them ...
Auto Zone, NAPA, O'Reilly's...
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