Quicksilvers

It really depends you choose a engine oil cooler that best matches your climate and what temperatures you normally see in the seasons. Running too cold with the VQ37HR engine isn’t good for the life of your engine and could be detrimental. In the cold fall/winter months I found a custom made block off plate works well. Also from what I gathered running anything over 245 degrees would be a corcern and needs to be addressed. It’s your Z you need to determine what engine oil cooler best works for you. Z1,FI,and Stillen would be good choices in terms of a engine oil cooler brands. In my experience I have only seen negative reviews with Mishimoto products you get what you pay for 9/10 of the time. I have seen the Mishimoto engine oil coolers leak and if you search there is a member here how lost their engine due to their Mishimoto engine oil cooler leaking and had to replace their engine on their own dime. The Mishimoto radiators are notorious for leaking worse than any other radiator brand I have ever seen. The Mishimoto racing thermostats over cool our VQ37HR engines and are possibly detrimental to our QV37HR engine. The Mishimoto magnetic engine oil pan drain plugs are notorious for snapping and breaking with little torque applied and sometimes Z owners have to replace their engine oil pans because it can’t be removed. The Mishimoto silicone radiator hoses are notorious for cracking and leaking coolant. Definitely do your research or better yet ask a forum member here before you purchase any parts for your Z.