What is the PROPER battery coolant level?

[cmr]

I'm afraid I don't really have a method for that, other than writing it on a piece of duct tape or something along those lines.

any place that does vinyl graphics with a computerized cutter can make the sticker for you if you feel it's necessary. there is an overflow hose coming from top right under the cap. if it gets overfilled it will spit out what it doesn't want just like your radiator and self adjust the level.

i have used these people for brake caliper stickers before, they do good work and will make anything you want.

http://grfxpstore.com/index

here is another,

http://www.vinyldecals.com/index.php

[AySz88]

Meanwhile, I'm trying the writing-on-white-duct-tape method - will check how it holds up. It looks like the person who installed the tank made a little mark on the tank as well.

[ClarksonCote]

So after my battery enhancement, my coolant was filled to the brim by the dealer. I hate to go have it drained, and be perceived as a real picky owner who has nothing better to do. Is there any way to do it myself despite the anti-tamper design? I would just siphon enough coolant out of there until it's at the appropriate level.

[cmr]

So after my battery enhancement, my coolant was filled to the brim by the dealer. I hate to go have it drained, and be perceived as a real picky owner who has nothing better to do. Is there any way to do it myself despite the anti-tamper design? I would just siphon enough coolant out of there until it's at the appropriate level.

a bulb syringe will work just fine for those final adjustments..... just find one as big as you can get to save time.... these are 2oz and 3oz models.

http://www.amazon.com/AMSINO-INTERNA.../dp/B001B9SJX4

[FrankIII]

ClarksonCote, I had a similar problem with the coolant in my son's Volt, there was no headroom for expansion. I pulled out all the push rivets, I think there were 10 or so. Along the radiator support was a rubber flap. I pushed it out of the way to see the bolt that held the anti-tamper bracket. If I remember correctly, it was also a mounting bolt for the coolant jug. I did not remove the bolt, but simply used a ratcheting box-end wrench to loosen the bolt about 1/4 - 3/8 of an inch. this was enough to lift up the end of the anti-tamper bracket and allow it to disengage from the cap. While holding the bracket up, I simply unscrewed the cap with the other hand. Where I got into trouble was using my wife's turkey baster to suction out the extra coolant and bring it down to about 1/4 inch above the bottle seam. Rather than let this go to waste, I put it into my Volt via the same procedure and my Volt was brought up to about 1/4 inch above the seam. I have monitored it over the last 5 months and the level had not moved at all. Leaving me to believe there was no consistency in the level being set to a certain point even at the factory.

[FrankIII]

While my son came back home from college this weekend, I told him to check the coolant levels under the hood. When we first got our Volts, my son's Volt coolant was right at the top of the jug while mine was just a little below the seam at the midpoint. Back in April, I used a turkey baster to transfer coolant between both Volts and got the battery coolant level in both of them to the same level. With my son home we checked levels. My Volt has the coolant sitting at almost the exact same level as six months ago, even after about 6000 miles. My son's volt however, had the battery coolant level drop about 3/8 - 1/2" in the battery coolant tank. He has only put about 3000 miles in the same six months that my Volt has gone through. I know there is a sensor to generate a code when the level drops, but what is an acceptable rate of drop-age for the coolant? I told my son keep an eye on the level and to make an appointment at the dealer to have it checked out the next time he is back in town.