Ok some of you guys still don't understand.......No matter how low you bring the engine temp, unless you have a 98 Z it will still read around 210! If you want to see a somewhat accurate temp that you're engine is running at, buy/borrow/rent a digital heat sensing gun and just shoot around the engine bay (radiator hoses, radiator, block...etc) OR just invest in a aftermarket temp gauge. I'm currently running an autometer water temp gauge, i love it and it's very accurate my normal engine temp is always from 150-170 depending on type of day and how hard i'm running the car.......I'm tired of typing, someone else can explain seafoam.

 

I use my Interceptor gauge for when I need to see what the temps are.

 

Is there a gauge that you can get that will fit into the spot where the factory one sits?

 

Seafoam is a cleaner that can be used in the gas to clean the injectors, in the oil to clean the bottom end, and thru the intake while running to clean the combustion chambers and pistons. In a word I believe that it works.