thermostat gasket question
11-15-2016, 09:17 AM
#1
Senior Member
Thread Starter
thermostat gasket question
I have a Fel-pro thermostat gasket. Do I need to use a sealant with the gasket? thanks
11-15-2016, 10:05 AM
#2
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Join Date: Sep 2008
Location: Sioux Falls, SD
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Year: 1999
Model: Cherokee(XJ)
Engine: 4.0L
Depends on how pitted the mating surfaces are. I would use RTV just because I don't like leaks. I suggest the black RTV. The orange/red/blue are ugly. 
11-15-2016, 11:15 AM
#3
CF Veteran
For the sake of not having to do it twice, just put a thin layer of black rtv on both sides. Like diskman kind of mentioned, it'll alleviate any small defects that may affect the seal.