BBBsti LTD

I was changing the oil in the IS 250 and noticed that the reservoir cap was open. It had pink coolant around, I checked the level and it is just at the low level in the reservoir.

Is the reservoir tank pressurized, it it anything to be concerned? My fiancee drives the car and never noticed the car overheating, she said, but I don't think she pays attention to the gauges (only gas LOL).

Should I be concerned about having air in the system?

hapaboy

cue response from javy....

funny we were just talking about this.

eric_r_ho

iTrader: (9)

Yeah it's pressurized when it reaches operating temp..fill it up back to the top with just plain water and you should be fine. With the air in the system if you're worried, run the car with the cap off and let the car warm up. As the car is warming up, squeeze the upper radiator hose and keep adding water and top off accordingly. Keep doing the squeezing until you see no more air bubbles coming outta the reservoir.

BBBsti LTD

Can I just mix water with this pink coolant? I know is not is not big deal with the green coolant but this one???

Also, should i be worried and bleed the system? I did not see a radiator cap like conventional radiators.

Is it possible to have gotten air in the system just by having the reservoir car not fully sealed therefore having coolant coming out?

Thanks

Brian231

Toyota/Lexus coolant is not only silicate and phosphate free extended life, it contains a water pump lubricant. I am willing to bet you did not loose a lot to hurt your cooling system, but I would not just add tap water. I would add distilled water for only under a buck a gallon. It will be wise not to add hard water to your system. You can also have it topped off at a Lexus or Toyota dealer probably for free if you speak with a service adviser or slip them $5.

VF84

^^

make sure u use distilled water, local auto store or even grocery store like safeway should have some. regular tap water, regardless of where u are, is bound to have contaminates and ions that may leave deposits somewhere.

but remember, don't use any distilled water that's been opened for a while..

javyLSU

iTrader: (21)

Joe Z's gonna want to comment on this too. I HATE the design for the coolant tubes on the 2IS. Every single 2IS engine bay I've ever opened has pink coolant dried and crusted around the cap and spillling all over the back of the fan from the the overflow tube. It's pathetic.

Javier

Joe Z

iTrader: (10)

^^ Ha... !! Except for mine...

Well what I noticed is that cap just needs some attention or wipe every 5k miles or so...

I actually think the overflow tube is a super poor design since it makes a mess in the event of an overflow or even just a few drops occasionally.

What I did was, I re-routed the overflow tube with some new longer tubbing that goes behind the coolant bottle, and then through the fan shroud in two places, once I drilled some holes in it... The new tube ends up just over the oil filter access panel...

$3 fix for the new longer tubbing... Plus it looks & works better than OEM..

- Joe Z

kickin8

iTrader: (1)

joez: post some pics when you are free please?