This oil cooler is made for many cars because of it quality. these are the cars it's used for: , Dodge charger, RAM, Durango, jeep grand Cherokee, wrangler Cherokee etc. There are some signs will let you know that your oil cooler has spoil. When an oil cooler fails, it can force all the coolant out of the engine and raise the risk of an overheated engine, which may lead to possible engine damage. If the leak is significant, you'll notice coolant on the ground or see steam gushing out from underneath the hood.