What is the 7’7 rule for winter tires?
The 7 7 rule for tires provides a simple temperature guideline for timing your seasonal tire changes. Install winter tires when daily temperatures drop to 7°C (45°F) or below for seven consecutive days. Remove them in spring after seven straight days above 7°C. Matching the right tires to the right season When the seasonal temperature falls below 7 °C (46 °F), it’s time to switch to winter tires. Winter tires perform well in all cold weather conditions, ranging from snow and ice to wet and cold dry roads.You should never mix all-season, winter or summer tires. These tires were engineered with dramatically different types of traction and handling in mind. Mixing the type of tire on your vehicle can cause a loss of handling, increasing your risk of accidents.
What is the 7 7 rule for winter tires?
The rule of thumb is 7-for-7: wait until there are seven consistent days at 7 degrees Celsius. The reverse is also true for transitioning to winter. Ottawa’s CAA Members can avoid the tire swap lineups at on-site vendors and save money with our economical new Mobile Tire Change. The 7 7 rule for tires provides a simple temperature guideline for timing your seasonal tire changes. Install winter tires when daily temperatures drop to 7°C (45°F) or below for seven consecutive days. Remove them in spring after seven straight days above 7°C.So what should tire pressure be in winter? PSI is generally recommended as the ideal tire pressure for winter temperatures, but the exact recommended pressure varies depending on the type of vehicle and how low the temperature drops.
What is the 3% tire rule?
The 3% rule states that when replacing tires, the new tire’s diameter should not differ from the original by more than 3%. This guideline helps maintain proper vehicle performance, safety system functionality, and speedometer accuracy. As a general rule, you want replacement tires that are within 3 percent of the diameter (height) measurement of the tires originally on your vehicle.