Why car idles rough after oil change?

Extreme weather can take its toll on you car, making it difficult to get it started on cold mornings and overheating on the hottest days. Summer throws heat, dust, and traffic… tie-ups your way, increasing the likelihood that you will face a breakdown. The following preventive maintenance tips can keep your car running smoothly throughout the next heat wave.An old battery may not survive the summer.

If your car's battery is near the end of its useful life, then replace it. Older batteries simply cannot provide a full charge and won't be able to handle the heavy electric demands placed on it by your climate control system, navigation, audio system, and lights. Newer batteries can also fail if there is a build up of corrosion.

You can safely remove battery corrosion(http://autos.answers.com/tips-and-advice/how-to-safely-remove-car-battery-corrosion) yourself, a job best handled with baking soda, a few hand tools and petroleum jelly. Most drivers will change their oil twice annually or at least as often as the intervals outlined in their owner's manual. Timing your oil changes to take place before extreme temperatures kick in is a sensible approach to preventive maintenance.

Your owner's manual will list the right oil grade(http://www.popularmechanics.com/cars/how-to/products/1266801) for your car. You will notice some differences in viscosity between winter and summer oils, the latter permitting a slightly thicker oil. Where 5W30 oil may be needed in the winter, 10W30 oil may be ideal for the summer.

Change your oil fluids at this time and do the same for your brake, power steering, and transmission fluids. A broken belt or a cracked hose can leave you stranded. Most of the time you can prevent such breakdowns by examining belts and hoses periodically.