Correct. It is recommended that you not flush but merely drain the old fluid and replace with new 50/50 coolant and distilled water and be sure to add the GM coolant pellets! They can be added to the system through the upper or lower hose, never into the overflow tank.Krashed989 said:I don't think there is one, and that means that the only way to drain it is to remove the lower radiator hose.
Is there a reason you don't want to stay with the Dexcool? It's supposed to last longer than the silicated coolant. If you do go green you can't go back.nyremodel said:Good, I'm not blind. I'm planning on getting rid if the dexcool and using green prestone, diluted with distilled water. It's never been flushed, so I'd like to flush it as well, or should I just change the fluid?
It's your car, but I'd highly recommend staying with OE Dexcool and GM supplement tabs. If you go to the green stuff, you'll need to drain/refill every two years and will never be able to go back to the Dexcool 5 yr/100K cycle due to the fact that the silicates from the Prestone will have permanently plated your cooling system. Dexcool is a little pricey, but it's time tested, proven, and will last at least 250% longer before risking gasket damage. The last thing you want or need is gasket problems with this engine. Big $$$ to remove/replace most anything gasket related besides the waterpump.nyremodel said:Good, I'm not blind. I'm planning on getting rid if the dexcool and using green prestone, diluted with distilled water. It's never been flushed, so I'd like to flush it as well, or should I just change the fluid?
mramazingman said:The radiator drain plug is located at the lower right corner of the radiator.It may be partially hidden by a plastic corrugated electrical wireway.