Wunderladen Racing | Oil Heater Delete | Honda Civic Type R | FK8/FL5 2.0T K20C1 | 2017+From the factory the K20C1 has an oil heater that flows both engine coolant and oil through it to get the oil up to temperature faster. The downside is once the engine is up to running temp, now the coolant is tasked with trying to remove heat from the oil. This puts extra thermal load on top of an already overtaxed cooling system and if you're tracking your Type R you are probably well aware of how much these cars struggle to keep coolant temps in