I noticed my car using 11% more fuel. One reason I might have forgotten is I have winter tires and spring is here. I will change them to all season in 2 weeks. Maybe the rise in temperature from 10°C or 50°F to 15°C or 60°F is causing more fuel consumption. I know winter tires are NOT for summer and as the weather gets warmer this might be the reason for less MPG. Thanks for your help!
Winter tires typically have a more aggressive tread. An aggressive tread increases the rolling resistance of the tire, which will result in less fuel mileage.One reason I might have forgotten is I have winter tires
One reason I might have forgotten is I have winter tires and spring is here.
Winter tires are designed to be softer than summer tires. When spring comes, the rubber becomes even more pliable than when it's cold outside, increasing the vehicle's rolling resistance. I don't have firsthand experience with winter vs summer tires. I've always either used all-season tires, or all-terrain tires.
