Can 275 65 18 tires substitute for 245 60 18 tires?

Yes, 275/65R18 tires can potentially substitute for 245/60R18 tires, but there are important considerations. The 275/65R18 tires are wider and have a taller sidewall, which may affect the vehicle's handling, speedometer accuracy, and overall clearance. It's essential to check the vehicle's specifications and consult with a tire professional to ensure compatibility and safety.