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Probably not, I think it would take time for the coolant to react with the materials.
I'll have to refer you to the fsm on the flushing. I've been doing drain/fill every few years - takes about 1 1/2 gals .
Alright yeah I’m just not going to drive it until Friday when I can try it myself or take it in to get it done. I just can’t believe an experienced shop would make such a simple mistake like this.
Just drain and refill with distilled water let it cycle a few mins drain refill again with distilled water run again. Then fill with either Nissan or Toyota long life fluid and a bottle of purple ice. I use BMW fluid bc I have it sitting around and its concentrated so you mix out ratio.
^^I always wondered, using the above method, how do you ensure 50/50 or 70/30 mix? How do you know how much coolant is left in the engine after a drain....
What's involved in draining the block? Freeze plug removal?
Originally Posted by Surfnazi
Yeah after you drain rad first. You can get a rad cap line and pressurize system to push push out and check for leaks too
Fwiw, the FSM has you burp it by running the car.
Draind and filled mine a few weeks ago. Just have to pop the driver side airbox out to access all the plugs (I think theres one by the firewall too? I can't remember) Takes an hour or so, I burped it on the refill.
I don't think freeze plugs are mentioned by name... Are you thinking air_relief plugs? I was, following both the FSM and this guide (https://www.myg37.com/forums/d-i-y-i...e-coolant.html).
Nissan eliminated the heater hose plug (theres no consistency as to when), and the FSM hadn't been changed so I skipped it and bled just through the radiator, and burped the system as described in the FSM. Took it to the track and had No heating/cooling problems, and reservoir level was stable. Glad I did cause it hadn't ever been changed, coolant was very dark and smelly.