Sign of the times

The WSJ features a tip of the week today titled "Tweak Car, Save on Gas" summarizing tips from the DOE's fuel economy guide.

We've been posting tips on what you as an individual can do to reduce your oil use - please do your part! Today's tip: Replacing a clogged air filter can improve your car's gas mileage by as much as 10% - that's over 5 weeks worth of saved fuel a year.

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