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PSI convenience
Tire pressure needs to be routinely checked (for all vehicles, not just Prius). Temperature drops
cause PSI to decrease. Heat caused by driving increases PSI, making measurements inaccurate
until cool. MPG & Safety are directly dependent on properly maintained PSI. Prius owners have
found a way to make this simple: use a cordless inflator.
Cordless inflators cost about $40 (as shown below, right). They are small & powerful, allowing
you to increase PSI in the convenience & comfort of your own garage when the tires are still cool.
As an added bonus, the battery in the cordless inflator can be used as a portable12-volt power-
supply to plug your automotive accessories into. Some even offer additional features, like a built-
in light and even the ability to jump-start a vehicle.
Make sure to purchase a high-quality tire-gauge. For about $30 (as show above, left), you’ll find
that it is both easier to hold and easier to read than a less expensive one. That price will also
deliver a 0.5 PSI accuracy that you can depend on for many years and a tough case to protect it.
Prius User-Guide 19 of 45 Last Updated: 2/07/2006