In this article, we’ll take a look at some of the most common reasons for poor gas mileage in Macan, and offer tips and advice on how to improve it. Porsche Macan – (BoJack / Shutterstock) 1. Low tire pressure. Underinflated tires can have a significant impact on the fuel economy of your Porsche Macan. 5. Fuel System. A bad fuel injector or dirty/old fuel filter can drastically affect the flow of fuel into the engine. A fuel system problem is one of the most common causes of poor gas mileage. 6. Air Conditioner. The more you run your A/C, the lower gas mileage you will get. A class-action lawsuit filed Monday in U.S. District Court alleges Ford Motor Co. installed devices on 2019 Ford Ranger pickups that misrepresent fuel economy, and that the automaker deceptively .

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