OMG coolant reservoir bone dry!

[DaveB.inVa]

I believe the coolant loss is more due to evaporation than anything mechanical.

My BRZ does this as does my girlfriends 2016 Forester 2.5i. Her dad has a 2014 Forester 2.5i and it loses coolant at about the same rate.

All have a white residue on the overflow and all are filled with the blue coolant. I have a bottle of premixed factory coolant that I keep for them. I just keep an eye on the level and add as needed.

I have to catch times when her parents are gone to check theirs, they're bad not to check fluids regularly, believe the dealer has to do everything and must think anything you do will void your warranty. I put LED interior lights and weathertech mats in my girlfriends car and I heard about it!

[qqzj]

Originally Posted by finch1750

Haha, yeah. I really racked up the mileage when it was my only car. It does seem to burn up much faster when driving hard (track/autox/touge) so I would check it more often in the days after doing any of those.

The same question crossed my mind since it's due at 137.5k haha

If you can figure out a way to measure the coolant to water ratio in your radiator, you will help a lot of guys here. Here is a very simple test:

https://www.thoughtco.com/check-your...centage-281981

Hey, if you will want to do this, you can give us a paypal account and I can chip in to buy the tester. I am actually interested. But you are in a unique position to do this.

Additionally, I also look at coolant reservoirs of my other cars, they also have small holes of similar size. The hole is not unique to our cars.

[Bonburner]

You see that rubber black hose coming out from the top of the coolant tank (upper right to the coolant cap)? If you pull it up and down you can see how loose it is. You can also wiggle side to side to see how loose it is.
Try wrapping it with some heat resistant tape. I used to be refilling the coolant over and over at an alarming rate at first .. but after making the rubber hosing a tighter fit my coolant has not needed refilling as much. Maybe a splash every 10~20k miles

[qqzj]

You mean the black rubber hose from radiator neck to the coolant reservoir? On my car it is pretty securely attached to the radiator side. Not loose at all. Or do you mean the end that goes into the coolant reservoir? That side does seem to be quite loose. Maybe I shall try to add some tapes or seals around it. Thanks.

[Bonburner]

Originally Posted by qqzj

You mean the black rubber hose from radiator neck to the coolant reservoir? On my car it is pretty securely attached to the radiator side. Not loose at all. Or do you mean the end that goes into the coolant reservoir? That side does seem to be quite loose. Maybe I shall try to add some tapes or seals around it. Thanks.

yup the coolant reservoir side

[Lunatic]

I sealed mine in also.