Review on Denso 221-3426 Radiator: Top-notch 🔥 Cooling Performance for Efficient Engine Functionality by John Carter

after installing it on my 2006 g35 the car overheated after about 3 minutes. Coolant continues to flow out of the expansion tank, no success after complete venting and new radiator cap, same result. I have noticed that the coolant system does not hold pressure when the car is running. The problem is that the radiator filler neck has the wrong depth of about 1.5mm more than the original. As a result, the radiator cap cannot close and close all the way, and the coolant is pushed further and further into the expansion tank. I put a rubber gasket (custom made) between the cap and the radiator and the problem was solved, never overheated and held pressure very well. I used to trust the Denso brand, but this time a little disappointment.