Truck Maintenance & Upgrades - How to Increase Your Fuel Mileage
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When you're reoiling a reusable air filter, you need to be careful not to over-oil it because the excess oil can damage mass airflow meters. For foam filters such as this True flow flat-panel filter, after spreading the oil evenly, you need to remove all the excess by dabbing it with paper towels. On cotton gauge filters such as K&N, it's harder to remove the excess, so you have to spray lightly as well as evenly. View Related Article
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