Yes I use both coolers. Many people believe the Boss cooler just increases coolant temps, and they’re probably right but I don’t have overheating issues. I did have to use a Moroso sandwich plate to seal to the Boss cooler though.
5W-50 is what is used in the Boss 302s and I believe it was used in 13-14 track pack GTs. It’s more suitable for high temp track use, maintains proper viscosity.
What tracks have you been to?
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So you use 5W 50 continuously? Any issues come up?
I have been to Atlanta Motorsports Park and Road Atlanta.
Which Moroso sandwich adaptor plate do you use? I located this one...
http://www.shopmoroso.com/eb/catalo...group.1150001508&expand=true&menuId=main.menu