If she's loosing dexcool that fast there is a leak somewhere. If your dealership isn't looking then you need to find a different dealership.Antifreeze is obviously going somewhere. With thousands of these things on the road and many suffering the same issue surely somebody has a clue as to whats going on. I wont let my daughter leave without carrying a gallon of antifreeze with her.
Hmmm. Is there nothing on the ground underneath the car when it's been sitting? If it's losing/consuming 2 gallons in 500 miles there must be evidence on the engine somewhere. If it's consuming it, that's a different story. What is the mileage and model year of this Cruze? Has it always gone through coolant at this rate? If not how long has it been doing this? It is long time past to find a different dealership service department. The current one is incompetent at best. If you pull the oil filler cap, or dipstick, is there a brown, frothy "goop" on either of them?Probably about 2 gallons in the last 450 to 500 miles.
That has taken 2 months it doesn't get driven daily.
If it were the heater core leaking, the carpeting should be soaking wet and the interior should reek of antifreeze. The consumption has to be external to the engine or, worse, internal to the engine. The radiator and related plumbing should also be examined.Possible heater core.
Its frustrating but you can't help someone who doesn't want to help themselves. It's possible OP is currently in the middle of addressing the issue? Maybe it got fixed and since they don't need us anymore they've forgotten about us.I really wish that folks who come here seeking assistance would keep everyone updated on what is going on. Members here take the time to try to help and are interested in what the situation is. It's been over a week since the OP posted and given the severity of the issue, one would think something has been done to address the problem by now.
In the past, yes. The Cruze has no radiator cap per 'se. The pressure cap is on the surge tank and if it releases, coolant spews out the vent onto the tank or down the side. That would be very visible to any GM technician, if they looked. There were quite a few bad tank castings that did not seal at the cap properly and required a new tank and cap to stop the venting at that point.In the past it would be a bad rad cap, the motor gets hot, fluids expand right out the overflow and you have major loss every day..