I'll do a distilled-water flush. I have a separate radiator cock and engine-block cock, and I'll drain both. Specified system capacity is 6.6 qt per the OEM repair manual.
Do I just assume that this is the correct capacity and use 3.3 qt of concentrated antifreeze and top off the rest with distilled water to get the optimal 50/50 mix? Should I put a little more than 3.3 qt just in case? Heavy-duty heater core could result in a higher system capacity and the repair manual might not have taken into account a generously filled overflow reservoir. Of course, the overflow reservoir needs to be filled with the 50/50 mix separately as it won't mix easily by itself and I need to include the amount of the antifreeze put in there in the calculations.
Any tips are appreciated.
Do I just assume that this is the correct capacity and use 3.3 qt of concentrated antifreeze and top off the rest with distilled water to get the optimal 50/50 mix? Should I put a little more than 3.3 qt just in case? Heavy-duty heater core could result in a higher system capacity and the repair manual might not have taken into account a generously filled overflow reservoir. Of course, the overflow reservoir needs to be filled with the 50/50 mix separately as it won't mix easily by itself and I need to include the amount of the antifreeze put in there in the calculations.
Any tips are appreciated.