If it has never been changed... you are way overdue... by about TWO YEARS... LOL
The owners manual says to go NO LONGER than 5 years.
The ADDITIVES get depleted over time and need to be replaced.
I bought it used, so I'm not sure if it's ever been changed. I will set up an appointment Friday to have it changed lol. Do they need to replace any hoses or just drain and refill?
According to the Owner's Manual, you should replace the coolant once every five years or 120,000 miles, whichever occurs first, with
DEX-COOL® engine coolant. I do not know that when you acquired your Caddy. You may have to replace the hoses. The dealer can tell you about the condition of the hoses and the thermostat.
According to the Owner's Manual, you should replace the coolant once every five years or 120,000 miles, whichever occurs first, with
DEX-COOL® engine coolant. I do not know that when you acquired your Caddy. You may have to replace the hoses. The dealer can tell you about the condition of the hoses and the thermostat.
A bit late but ............ If you took the car in to a GM dealer and asked for a coolant change, they will use a pressure/vacuum machine to perform a complete coolant exchange using a 50/50 DEX-COOL/water mixture. You should not be able to tell they did anything. When the engine cools the coolant level should be at the proper level in the surge tank - half full. Note the "FULL COLD" legend and arrow molded into the top and side of the surge tank. Do not be surprised if they replace the pressure cap.
A bit late but ............ If you took the car in to a GM dealer and asked for a coolant change, they will use a pressure/vacuum machine to perform a complete coolant exchange using a 50/50 DEX-COOL/water mixture. You should not be able to tell they did anything. When the engine cools the coolant level should be at the proper level in the surge tank - half full. Note theh "FULL COLD" legend and arrow molded into the top and side of the surge tank. Do not be surprised if they replace the pressure cap.
They just drained it and replaced with new Dex cool. The GM super tech said if it comes out not dirty, there's no need to flush. He checked my hoses and they were good. After he refilled it he washed my engine area with water and took it for ride to make sure he didn't smell coolant and etc. Brought it back in and made sure the level was accurate.
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