Pouring Antifreeze straight into radiator THEN pouring water in to mix it.

Asked by sedcampbell Nov 15, 2014 at 11:10 PM about the 1998 Ford Ranger XL Extended Cab 4WD SB

Question type: Maintenance & Repair

I recently flushed my radiator and when i poured the new coolant in, i didn't pre mix it, I
poured a gallon of straight antifreeze in the radiator, THEN poured a gallon of distilled
water into the radiator to mix it., then topped off the reservoir with 50/50 mix. THEN I
turned on the car and idled the engine for a about 15 minutes to circulate it. Did it mix
okay? Is my truck going to be alright, or will the engine overheat, or seize up, or is it just a
low enough freeze point now? It really needs to be -34 F.

2 Answers
24,995

Mark answered 9 years ago

The truck will be fine. As long as it's a 50/50 ratio, it doesn't matter if it's pre mixed. It will blend fine within the system.

Mark helpful
270

Jsellers25 answered 9 years ago

Most antifreezes are mixed with coolant anyway my ford(changed mine today actually) ask to use both antifreeze and coolant mixed. I just poured the entire gallon then topped off with water. Did that 4 years ago and never froze on me

Mark helpful

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