Host Michelle Yarn shares her lifestyle how-to's, DIYs, favorite products and more for modern women. Treat Your Fuel System If your car has lost some of its power and the gas mileage is dwindling, you may need to clean out your fuel system. Yes, it can be overwhelming to see shelves and shelves of fuel system cleaners at your auto parts store and many of them have to be used every time you fill up with gas! So here's how to keep things simple: CRC 1-TANK Power Renew is a concentrated one-tank cleanup, used only 4 times a year, that cleans out the deposits that build up inside the fuel system with regular every day driving. It's super easy to use and even comes with a funnel in the box, so it takes seconds to do the "service" and then you are done for the next 4,000-5,000 miles. Just add it to the tank every time your vehicle is due for an oil change.