How much air should be added to a 195/70R15C tire?
2 Answers
195/70R15C tires normally require 2.5 kg of air pressure. If the vehicle is frequently carrying heavy loads, the rear tires should be inflated to 2.7 kg. The standard air pressure for passenger cars is 2.4-2.8 kg/cm². Seasonal factors to consider are as follows: 1. Winter: In colder temperatures, you can slightly increase the standard tire pressure by about 0.2 bar. 2. Summer: In high temperatures, follow the lower limit of the standard tire pressure. If the car is parked outdoors in summer, the pressure can generally be about 0.1 bar lower than the standard to prevent tire blowouts due to heat.
Last time a friend asked me about the recommended tire pressure for 195/70 R15 C tires, I drew from my decade-long experience driving small trucks. These are commercial-grade tires with higher durability—the 'C' stands for commercial—so they generally require higher pressure than regular passenger car tires, typically between 40 to 65 PSI. But never guess blindly—the most crucial step is checking your vehicle's owner's manual or the label on the door frame. My van's manual specifies 50 PSI for front tires and 55 PSI for rears. In summer heat, pressure rises slightly, while winter cold demands more frequent checks to avoid underinflation, which causes uneven wear or blowout risks. I use a tire gauge monthly to maintain optimal pressure—it saves fuel and ensures safer driving. Before long hauls with heavy loads, I double-check adjustments—never skip this detail for convenience.
