Posted on 2/27/2026

EVs don’t have engine oil changes, but they do have coolant, and that coolant matters more than many owners expect. In an electric vehicle, coolant helps manage heat in critical components like the battery pack, power electronics, and drive unit. Heat control is a big part of how an EV stays efficient and reliable. When coolant ages, it can lose some of its protective properties. Corrosion protection can degrade, and contaminants can accumulate over time. That can raise long-term risk for expensive components. This is why an EV coolant service should not be treated like a filler item. EV Coolant Flush Purpose Coolant in an EV does not just prevent overheating. It also protects internal passages from corrosion, helps maintain stable operating temperatures, and supports consistent performance during hot weather, highway driving, and fast charging sessions. Some EV systems use multiple coolant loops. One loop may focus on the battery, another on the power elect ... read more