本段视频演示车型：1995 福特 F-250 XL 7.5 升 V8 标准驾驶室 皮卡 (2 门)
操作说明
你的 1991 福特 F-350 的发动机空气滤清器会过滤进入发动机的空气。 你应该每年或每 20,000 英里更换一次 F-350 的滤芯，以先到者为准。 如果在尘土或沙地条件下驾驶，应更频繁地更换你的滤清器。 一个脏的空气滤清器会使你的 F-350 每加仑油耗增加 1 - 3 英里，具体取决于你的驾驶习惯，只要你定期更换滤清器，每年就能节省 70 - 100 加仑的汽油。 上面的视频展示了您的 F-350 中发动机空气滤清器的位置以及如何更换它！除了能提升您 F-350 的燃油经济性外，定期更换空气滤清器还能减轻发动机的负担。 这些滤芯价格相当便宜，建议查看我们的配件页面，获取全新滤芯的优惠促销和优惠券（提示：购买多个，当您检查F-350上的滤芯时，如果发现脏了，可以轻松更换为新的） 请务必按照定期计划为您的 1991 福特 F-350 进行更换。
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The engine air filter in your 1991 Ford F-350 cleans the air that enters your engine. You should change the filter on your F-350 at least once a year or every 20,000 miles, whichever comes first. If you drive in dusty or sandy conditions, you should change your filter more frequently. A dirty air filter will cause your F-350 to lose 1 - 3 mpg, depending on your driving, you can save 70 - 100 gallons of gas per year simply by changing your filter regularly. The video above, shows you where the engine air filter is located in your F-350 and how to change it!In addition to improving the fuel economy of your F-350, regularly replacing your air filter will put less strain on your engine. These filters are fairly inexpensive, so check out our parts page for great deals and coupons on a new one (tip: buy several, when you go to check the filter on your F-350, you can easily swap it for a new one if it is dirty). Be sure to adhere to a recurring schedule for your 1991 Ford F-350 replacement.