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10 easy ways to save money on gas this summer

By: NAPA Auto Parts on July 16, 2014, 4:45 p.m.
Clean engine oil

Photo: Photo: Saturated / iStock

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Maintain clean engine oil

Letting your engine oil get dirty or too low can cause unnecessary friction, preventing the components from working together like they're supposed to. Keep the engine lubricated with clean fluid to ensure that the transmission is in top working condition. When the transmission is in need of service, fuel economy suffers.

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