Fan will still come on around 203°f-205°f.Is there any potential downside to this? In the cold perhaps? I imagine the cooling fans still only come on when they are coded to.
Moisture non-issue. Only lowered cvvt temps 4° or so on my car. So no big difference there. And remember the oil is still being heated up by hot engine internal parts as well as the turbo CHRA which is very hot.Have you considered how going to a colder thermostat effect the Engine: IE
Engine oil contamination with moisture and acid forming in the oil?
A richer not completely atomized fuel mixture washing the oil film off the bore increasing engine wear and drag?
Engine running below optimal temperature of factory tune and effect on fuel economy?
Richer ECU commanded fuel mixture from lower engine temperature and effect of black soot forming blocking Catalytic converter and exhaust system?
How will this effect the ugly black soot out of the exhaust over the exhaust tips and up the back of the car?
trd, doesn't the fuel cut during engine braking anyways?Fan will still come on around 203°f-205°f.
Down side is in cooler weather the temps can get into the 150's if you decelerate in gear for an extended period which will cause slight power cut due to not being what is setup as the full operating temperature. This is somewhere around 156°f or so.....
These run at 170-172°f in a VT normal driving so have to decelerate in gear a bit to drop below that point.