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My car has never had dexcool in it's whole life. I've replaced the LIMG 3 times on my car. First time the plastic fell apart like ashes. It was destroyed from heat. The plastic was warped away from the silicone inserts and was leaking like crazy. Even the intake ports were leaking and rotted.
I replaced with a felpro gasket. Torqued right. Lasted a few years before it started seeping outside the motor this time. Replaced with the dealership gaskets. Then went to do a big port intake swap and went with the metal Felpro. Guess what I found when I took off the GM gaskets? More warping/separating of the plastic from the silicone rubber parts. They were not cracked from over torque, or wrong torque sequence. I used thread locker every time and cleaned the bolts/etc BTW.
I'm sick of the plastic that warps with heat, or gets brittle with heat and age. I'm done with it.
My coolant system is not neglected, and has never had dexcool that supposedly "eats" the gaskets. Only thing I've seen dexcool do is clog up the radiator and heater core on cars.
I replaced with a felpro gasket. Torqued right. Lasted a few years before it started seeping outside the motor this time. Replaced with the dealership gaskets. Then went to do a big port intake swap and went with the metal Felpro. Guess what I found when I took off the GM gaskets? More warping/separating of the plastic from the silicone rubber parts. They were not cracked from over torque, or wrong torque sequence. I used thread locker every time and cleaned the bolts/etc BTW.
I'm sick of the plastic that warps with heat, or gets brittle with heat and age. I'm done with it.
My coolant system is not neglected, and has never had dexcool that supposedly "eats" the gaskets. Only thing I've seen dexcool do is clog up the radiator and heater core on cars.
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