First time buying this brand. I bought this air filter when it was on special or marked down. However, you want to look at it. I should have stocked up! I feel like it fits better than previous air filters, at least in comparison to the last one. Don't install a filter that is not a snug fit or too tight. I live in San Antonio, Texas. This town is dusty! There is not much grass on the ground %26 it is not a clean town in general. There is a lot of debris every day blowing around, especially grainy dirt. Plus, my only option for parking is outside as cars speed by blowing up grit. This is why I often have to change the air filter. A dirty air filter can contribute to unnoticed long-term automobile problems. Have you ever taken a car in for service, and no one can figure out what's wrong with it? It may be because it wasn't maintained well in the past. It's too late to sort out by then. An air filter is one very easy, inexpensive thing we can do. I always change my own air filter. As long as I am able to do myself or a friend/relative can on my behalf, I'm not paying somebody $50, not even $ 10 just to change an air filter. I wished I'd stocked up! I believe this is the lowest price I've ever paid for an air filter for my current vehicle. I will buy another 2 if it is still on special. There is no set time frame in whuch to change it, but whether the car is driven a lot or not every few months, pop the hood and check the air filter. If it helps, take a picture of it before, when ut is new, so you can compare.