Hi all,

I was distracted while topping off my coolant tank and accidentally poured about 1/3 quart of oil in there instead.

How bad is this?

What should I do next?

Thanks

 

Drain and flush radiator system, use an off the shelf flush product. Go back with 50/50 premix green coolant, like Peak. Won't kill it to be driven modest distances. If you don't have one, would think about a 180F thermostat.

Whoa - on your other post you said it had not been started yet- if so, just drain coolant container.

 

thank you sir

 

Reminds of that car talk episode where the lady poured Maalox in her BMW's oil