learn about cars

"Use Your Headrest Before you hit the road, sit up straight, raise your head as high as you can, and press it into the headrest. Hold it there for five seconds, then relax and repeat five times. This will improve your posture and put muscles like your multifidus to work to keep your spine erect. This, in turn, will reduce the strain on your neck. 26. Jump-Start a Dead Battery If your battery terminals are corroded, crack open a can of cola and pour it directly onto the battery terminals. The acid in the cola will bubble away the corrosion, improving both your connection and the odds of a successful jump-start. Once you're home, run water over the battery to remove the cola residue and dry it with an old rag. 27. Avoid the Hot Seat If you want to become a dad, don't turn up your heated car seats this winter. A study in Fertility and Sterility found that when healthy men sat in a temperature-controlled seat for 90 minutes, their scrotal temperature jumped as high as 99 degrees Farenheit, four degrees above the optimum temperature for sperm production. "