

Windshield wiper fluid in engine coolant, addressed, but fixed?
So my partner put about 1/4 gallon of water in the engine coolant and then started to put in the windshield wiper concentrate before realizing the mistake.
I pipetted out about 23 oz of fluid from the top of the reservoir. Originally it was all green (the color of the concentrate), but then it was quite clear and then some of the pink coolant started coming up as well. By the end of the pipetting there were no more bubbles. The top of the reservoir is separated from the bottom of the reservoir in a way. The pipette can only reach this upper zone, so that was helpful in a way to address the contamination, which remained localized…. The car still has not been turned on since this happened.
I reached out to two shops. One recommended coming in and when I asked, said that towing would be safest as it isn’t a good idea to risk driving it in. Might not be a big issue, but could be, and if so that would be really bad…. The other shop said that I’m probably fine. Probably don’t need to do any work….
I know I did remove a significant amount of liquid, but curious what other’s sensibilities are about flushing this system, which appears to cost >$200. It has also been nearly 6 years since I purchased the car and I’ve never done anything with the coolant. What would you do/recommend?
Option 1. Before we drive, we remove the reservoir, drain the coolant, clean out the reservoir, and call it good to go.
Option 2. Drive it somewhere and pay for the system to be drained and refilled.
Option 3. Tow it to the shop and have them clean the tank.
One of the questions is about whether any solution might have filtered into the upper pipes coming out of the reservoir…, but I guess those could be checked for green.
I love my car and I want it to run for a long time, and I’m also not made of money. I can do some DIY and I also want to feel confident in the work/fix. Thoughts?