Should I choose ceramic or semi-metallic pads for a squealing 2018 sedan?

[Donald_L]

I'm hearing a high-pitched squealing from the front of my car, a 2018 sedan, whenever I apply the brakes, and I'm pretty sure it's time for new brake pads, but I'm getting conflicting advice on whether to go with ceramic or semi-metallic replacements. I do mostly city driving with some highway commuting, and I prioritize low dust and quiet operation over extreme performance, but I don't want to sacrifice safety or longevity. For those who have recently replaced their own pads, what factors ultimately decided your choice of material, and did you notice a significant difference in noise, dust, or initial bite between the types? Is it absolutely necessary to replace or resurface the rotors at the same time if they look okay and aren't warped, or is that just a best practice to avoid future issues?

[JonathanIT]

Yep—for mostly city driving with a priority on quiet and low dust, ceramic pads are a common fit. They tend to ride cleaner and be quieter, but they can be pricier and some people feel they don’t bite as hard as semi‑metallics when you need fast stops.

[Luna.M]

If you go with ceramic, plan for the cost gap and be mindful that in some braking scenarios (lots of cold starts or downhill braking), you may notice a softer initial bite until they heat up. Semi‑metallics are stronger on bite and heat handling, but they dust more and can be noisier on some cars. Your choice really comes down to how you’ll use the car day to day.

[OliviaDC]

A practical approach is to inspect the rotors before deciding. If they’re smooth, evenly worn, and above the minimum thickness, you can often replace pads without resurfacing. When you switch pad types, especially from semi‑metallic to ceramic, a light rotor surface breakup (resurface or replace) can help bed-in properly and reduce noise. If the rotors have grooves or glazing, you’ll want them turned or replaced.

[NatalieJ]

If you want a straightforward rule of thumb: for quiet, clean wheels, choose ceramic; for maximum bite and heat tolerance in aggressive driving or lots of freeway miles with hills, semi‑metals. Also consider the dust aesthetics—ceramic dust is lighter and often less noticeable on rims.

[MiaM]

Bedding-in new pads matters. Do a gentle break‑in: accelerate to about 30–40 mph and brake to a near‑stop without slamming, repeat 4–6 times, then drive normally. This helps the new compound seat to the rotors and reduces squeal later. If you’re unsure about rotor condition, a quick shop check is cheap insurance before you commit to pads.