Engine coolant replacement video

Here’s a good DYI video on engine coolant replacement. Apparently there’s no bleeder port on our engine, which simplifies the procedure. Only thing I’m not sure about is that he says you only need 1 gallon but the coolant capacity is 11.1 qts.

https://m.youtube.com/watch?v=OP9kI8Rpzgw

 

I like this guy's videos, he's got some good info from being a tech.

 

This is a super-easy change, get a small hose to put on the drain valve outlet (wish all cars had these) and crack her open.

 

This video was good to see as I am planning to do a coolant flush sometime this winter or early spring. Based on what I saw in the video, and from author's the comments in the video, he is only using one gallon of coolant and like what the OP of this thread mentions, that seems odd. Based on the procedure in the video I believe you are only replacing 1/3 of the coolant in the system.

When I peruse the factory service manual it states to the following:
1. Loosen radiator drain cock plug.
2. Remove the radiator cap and drain the coolant.
3. Loosen the cylinder block drain cock plug and drain the coolant from the engine.
Then:
4. Tighten the cylinder block drain cock plug.
5. Tighten the radiator drain cock plug by hand.
6. Add engine coolant. Standard Capacity: 10.5 liters (11.1 US qts, 9.2 Imp. qts)
7. Slowly pour coolant into the radiator reservoir until it reaches the F line.
8. Install the reservoir cap.
9. Install the radiator cap.
10. Start the engine and stop it immediately.
11. Allow approximately 10 seconds to pass. Then remove the radiator cap and check the coolant level. If the coolant level has
decreased, add coolant.
12. Repeat steps 9, 10, and 11 until the coolant level does not decrease (while engine is cold).
Then:
13 and on. There is a warm-up sequence and test and then coolant level check (after cool down).

Does anyone here follow the service manual method(s) and agree with what I am seeing?

 

The procedure you outlined makes more sense. I actually reached out to Viking asking for clarification and he aknowleded that his procedure doesn’t replace the full capacity. That’s why he recommends doing it every 30k miles. I think this approach is similar to the drain and fill method for the transmission. My only concern, is this enough dilution to maintain a healthy coolant mixture?

 

I am planning to follow the service manual, otherwise it seems that you are not removing very much "caustic" old coolant. To me replacing a gallon at a time (every 30k) means that you are only perpetually diluting old coolant.