Which would you run faster: a mile in 60-degree sunny weather or a mile in 95-degree weather — the sun beating down on you the whole way?

Your car also can feel extra stress in high temperatures, which accelerate corrosion and shorten your battery's life. Most experts suggest checking your battery twice a year, so the peak of summer heat is a great time to make sure your battery won't leave you stranded.

O'Reilly Auto Parts will test your battery, starter and alternator (the three main reasons why your car wouldn't start) for free. 

And if there is an issue with your battery, O’Reilly Auto Parts can help you find the exact battery that fits your car or truck at a guaranteed low price. They even offer O’Rewards points in store AND online. Earn points on everything from replacement parts to tools to accessories. And for every 150 points collected – you’ll get a five dollar reward!