5 mileage-boosting myths, exposed
Which of the claims about maximizing your car's mpg can you bank on? And which will just siphon money out of your wallet?
Ineffective -- and sometimes unsafe -- ways to save
Airflow gadgets: $90-plus wasted
Fuel additives: $5 to $250 wasted (per treatment)
Premium fuel: $4 wasted per tank (on average)
Overinflated tires: $200 wasted (minimum)
Windows instead of air conditioning: Comfort wasted
The bottom line
What do you think?
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