Headgasket gone ??

[delloro]

Negative sniffer test means head gasket should be OK and your head is unlikely to be cracked. Great news.

You can send a sample of the motor oil to Blackstone labs and they test for antifreeze. That looks for cracked blocks and heads where it is water-to-oil.

These things can be really frustrating.

If all else fails, this stuff really works: https://barsleaks.com/product/radiator-stop-leak-tablets/ .

 

[2016 4Runner SR5]

Very curious to see the outcome here. BTW, you're far from the only person doing maintenance like this. I changed my oil at 2K, 5K and every 5K from there using Mobil 1 0-20 which is way too often for oil like this but it's cheap peace of mind. Magnetic drain plug in the oil pan and magnets on the oil filter housing. Your magnetic fill plugs on the diff and t-case aren't doing much of anything. You need magnetic drain plugs so they are catching metal that falls to the bottom. Metal doesn't float up top where the fill plugs are. I wish you luck and certainly hope to hear there is something else going on and not a head gasket failure.

 

[caper]

Very curious to see the outcome here. BTW, you're far from the only person doing maintenance like this. I changed my oil at 2K, 5K and every 5K from there using Mobil 1 0-20 which is way too often for oil like this but it's cheap peace of mind. Magnetic drain plug in the oil pan and magnets on the oil filter housing. Your magnetic fill plugs on the diff and t-case aren't doing much of anything. You need magnetic drain plugs so they are catching metal that falls to the bottom. Metal doesn't float up top where the fill plugs are. I wish you luck and certainly hope to hear there is something else going on and not a head gasket failure.

i beg to differ the fill plug magnets are doing nothing , i clean lots of metal off them every time i check them the oil flows directly over them when vehicle is moving , this in turn keeps your drain plug magnet from reaching its metal holding saturation point so soon and will continue to catch things longer especially usefull for those that dont't change the gear oil often , Yes thats some pretty deep stuff but thats how my mind works .

 

[2016 4Runner SR5]

So what happened here? Thread died but you never told us the outcome!

 

[caper]

sorry wanted to give it some time , after adding a liter of antifreeze to rad and overflow rez the level has not moved since , its a mystery where that liter went.

 

[1jzgte]

9 YEARS without changing the antifreeze?

the coolant is good til 100,000 miles

 

[Rocko9999]

sorry wanted to give it some time , after adding a liter of antifreeze to rad and overflow rez the level has not moved since , its a mystery where that liter went.

What ever happened?

 

[Bmnorm2]

Nothing happened. Just an over reactive poster who “LOST ALL FAITH IN TOYOTA”, even though they didn’t have an issue or take the time to figure it out prior to posting.

Nothing to see here…

 

[BackOff]

I still have yet to hit 100,000 miles.
Built in September 2003.
91,000 miles.

 

[Rocko9999]

Nothing happened. Just an over reactive poster who “LOST ALL FAITH IN TOYOTA”, even though they didn’t have an issue or take the time to figure it out prior to posting.

Nothing to see here…

They lost coolant for some reason. Sounds like there was an issue.

 

[honda250xtitan]

They lost coolant for some reason. Sounds like there was an issue.

or it was always low and he never checked it before?

 

[1000MPH]

Fill it to the top and you will “lose coolant” pretty quickly.

 

[Rocko9999]

or it was always low and he never checked it before?

and I seem to be slowly losing oil and antifreeze , the amount in the overflow canister disappeared , the oil also seems to be slowly disappearing ,
The oil fill cap has white slime on the inside

Doesn't seem the case.