by mistake a friend added windshield washer to my coolant (don't ask) good to -40c...will it cause any problems to my engine...less than 1 liter added..should I flush the rad....just feel sick about it...how do I know if I have a problem...while running car in -15c the coolant running temp is around 90..
yes you should flush it or youll have soap suds in your engine. there's alchahol in washer fluid, thats why it doesnt freeze.it funny as hell but its really commin. youre lucky he didnt add oil to your coolant.
Flush it, funny way to clean out the radiator.