275/70R18 vs 265/70R17: Gas Mileage & Performance Comparison
* Below is a comparison table. Assuming 2 tires of the same manufacturer, material and tested on the same road conditions.
| 265/70R17 | 275/70R18 | |
| Wet/Snowy Roads | Better Traction | Reduced Traction |
| Rough Terrain | Reduced Stability | Smoother Ride |
| Handling/Steering | Less Responsive | Better |
| Gas Mileage | Good | Better |
| Road Noise | Quieter | Quiet |
| Cost | Less Expensive | More Expensive |
Can You Replace The 265/70R17 With The 275/70R18?
Definitely no, because these 2 tires are different overall rim sizes.
When you want to replace a different tire size, as a rule, for the rim diameter, you will need to be sure that your tires and rims are an exact match, e.g. a 265/70R17 tire will only fit on a 17″ diameter rim.
You Can check our tools and charts below to find your size:
