Accidentally added red vs pink coolant

it's not gonna hurt, just leave it & replace it later with the pink one /

 

Just go 30K miles and replace the coolant after that interval.

 

Maybe 30K or 3 years?

I know with the pink SLLC (after the initial changes), for both circuits it's 50K or 5 years.

Yeah there's nothing wrong with the concentrate, it'd be shame to dump it so early.

 

No problem.

When you get ready to change it again down the road just dump the rad only that way you will not invoke an airlock Then dump the rad again in a few months. It works Quick and easy really helps. G3's don't have as bad an airlock as G2's.

 

coolant drain and fill is very straightforward and simple job. if u did ur head gasket then coolant replacement is nothing comapred. if you are still concerned then replace it, i have found coolant drain refill to be easiest job on prius than my other vehicles.

 

When you drain, keep in mind you won't drain it all. Maybe stick with the shorter interval till the next time (if a next time happens). Measure what you drain, so you have some idea how much of the shorter interval coolant is still in there. System capacity in the attached. I believe the number is 7.3 liters (7.7 US quarts). I'm not clear if that's drain-and-fill guideline or full capacity.

I would try to drain as much as possible: open the engine block petcock as well. You might also pull off the lowest exhaust heat recover hose, see if you can get some out there.

 

totally forgot that 2010 prius has bleed valve up top wheras later models doesnt have that. it is way easier to fill with the valve open, leaves no air pockets. but mendel leisk is right about having hose disconnected it makes things way easier.

 

The hose disconnect I was thinking of was on exhaust heat recovery, just for a more thorough drain. But yeah in absence of bleed bolt on later 3rd gen model year, disconnecting a hose where bleed bolt was would serve same purpose.