2013avalanche
Full Member
- Joined
- Mar 2, 2014
- Messages
- 138
Have only 25,000 miles on my 2013 avalanche, coolant looks good, not much towing, gentle use. Is it ok to go 100,000 miles at this pace without changing coolant?
You can't tell if coolant is good by looking at it. Follow the owner's manual requirements of 5 years. Changing the coolant is relatively cheap and will absolutely prevent future issues like electrolysis and internal corrosion due to depleted coolant additives.2013avalanche said:Have only 25,000 miles on my 2013 avalanche, coolant looks good, not much towing, gentle use. Is it ok to go 100,000 miles at this pace without changing coolant?
EXT4ME said:I just buy the 50/50 and be done with it.
I got no time for that measuring and mixing crap.
My time is worth more than the cost difference.
They should be able to measure better than I would care to do, anyways.
If you do need distilled water, most grocery stores have it in the bottled water section and it's cheap.
Whatever works for you.
MyBigToy said:How do you empty the 100% water out of the block before adding the 50/59 mix? Assuming you completely flush the old coolant out first until nothing but clear water is coming out. The block holds approximately 50% of the coolant capacity so you will only have a 25% coolant mix. That's why I use straight antifreeze - when I fill the system and it circulates I end up with a 50/50 mix.