Recent Topics
Opinions On This Laptop
by BlueOvalFitter - 07/05/20 08:02 PM
Anyone else see Hamlin hood flap fly out?
by 555 - 07/05/20 07:54 PM
Husqvarna AWD with a Honda engine
by yeehaw1960 - 07/05/20 07:02 PM
Recommended car shipper?
by HawkeyeScott - 07/05/20 06:10 PM
My 2011 Sonata SE 2.0T
by strongt - 07/05/20 05:39 PM
Throwing in the towel on local clothing retailers
by Reddy45 - 07/05/20 05:09 PM
Castrol Edge vs Edge EP
by Gene K - 07/05/20 05:03 PM
Car related YouTube channels
by dishdude - 07/05/20 04:59 PM
Suspension Bushings Oil Resistant?
by TacoFergie - 07/05/20 03:43 PM
Building a solar generator
by BeerCan - 07/05/20 03:22 PM
Used CVT fluid in a power steering application
by mahanddeem - 07/05/20 02:06 PM
New Mobil1 EP HM, API SP label design.
by wemay - 07/05/20 02:00 PM
Generator oil
by Eddie - 07/05/20 01:51 PM
This never ceases to amazing me
by SLO_Town - 07/05/20 01:46 PM
Empty shelves and lack of variety.
by sloinker - 07/05/20 01:17 PM
Mann HU816 (28 month service)
by Barwich - 07/05/20 12:23 PM
Napa Gold 1348 and Mahle OC148 C&P
by BeerCan - 07/05/20 10:38 AM
Newest Members
Turboman92, TrustyAutos, TacoFergie, electro, SilentC
71852 Registered Users
Who's Online Now
101 registered members (antonmnster, 4WD, 72te27, Audioquest, 2010Civic, Astro14, 8 invisible), 1,768 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics307,463
Posts5,311,638
Members71,852
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Page 1 of 3 1 2 3
Re-using good coolant? #5444142 06/01/20 06:21 PM
Joined: Feb 2009
Posts: 39
J
Jarpin Offline OP
OP Offline
J
Joined: Feb 2009
Posts: 39
I'm about to perform a timing belt change on my Toyota with the red coolant. I drained the radiator and half the engine block. It tests good with the bulb dropper colored balls thingy, so I bottled it back up. Seems like a waste to just toss it. Anyone else reuse after a timing belt change or other job requiring the radiator to be emptied?

Thanks.

Re: Re-using good coolant? [Re: Jarpin] #5444145 06/01/20 06:28 PM
Joined: Apr 2020
Posts: 206
R
ripcord Offline
Offline
R
Joined: Apr 2020
Posts: 206
The tester with the floating balls just indicates the specific gravity of the coolant which infers the percentage of antifreeze to water in the solution. It doesn't really tell you about the condition of the coolant or it's ability to to prevent corrosion. The best answer to your question is to ask how long it's been in there? If it's been a few years, I would put new coolant in it.

Re: Re-using good coolant? [Re: Jarpin] #5444147 06/01/20 06:31 PM
Joined: Mar 2012
Posts: 1,799
E
E150GT Offline
Offline
E
Joined: Mar 2012
Posts: 1,799
If you care enough about the car to change the timing belt you should buy new coolant.


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 253k 5w30
2016 Mazda6 Touring 6MT - 81k 5w30
2006 Buick Lucerne CXL 3.8 50k 5w30
Re: Re-using good coolant? [Re: Jarpin] #5444148 06/01/20 06:33 PM
Joined: Mar 2013
Posts: 6,919
S
skyactiv Offline
Offline
S
Joined: Mar 2013
Posts: 6,919
I'm a UPS semi mechanic and we do it all the time.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 18' Elantra Sport 6 speed manual
The rude guy that points out reality


Re: Re-using good coolant? [Re: Jarpin] #5444150 06/01/20 06:35 PM
Joined: Jun 2003
Posts: 35,781
E
eljefino Offline
Offline
E
Joined: Jun 2003
Posts: 35,781
I say reuse it, but only because a seal might leak on the new water pump or whatever.

After a week of success, change it.

Re: Re-using good coolant? [Re: Jarpin] #5444171 06/01/20 07:04 PM
Joined: Mar 2008
Posts: 9,821
S
slacktide_bitog Offline
Offline
S
Joined: Mar 2008
Posts: 9,821
no-no

Replace the coolant. Zerex Asian, or Pentofrost A1 or A4
A1 is the red concentrate. A4 is the pink 50/50 version.

Pentofrost is sold at any parts store except Autozone. Zerex Asian is sold at Napa and Walmart smile

For the timing belt, I hope you got the Aisin kit (or went to the dealer, NOT eBay!)

Re: Re-using good coolant? [Re: skyactiv] #5444190 06/01/20 07:33 PM
Joined: Oct 2014
Posts: 15,525
C
CT8 Online Content
Online Content
C
Joined: Oct 2014
Posts: 15,525
Originally Posted by skyactiv
I'm a UPS semi mechanic and we do it all the time.

How many gallons go into a semis cooling system VS a gallon in the car?


2015 F150 2.7
2018 F350 6.2
Re: Re-using good coolant? [Re: Jarpin] #5444197 06/01/20 07:39 PM
Joined: Aug 2005
Posts: 238
M
meadows Offline
Offline
M
Joined: Aug 2005
Posts: 238
Which is the newer? Red or pink?

Re: Re-using good coolant? [Re: Jarpin] #5444212 06/01/20 08:05 PM
Joined: Dec 2005
Posts: 14,462
K
kschachn Offline
Offline
K
Joined: Dec 2005
Posts: 14,462
Toyota pink is newer than the red, and is stated by Toyota to be backwards compatible. However they are still selling the red the last time I checked. My local dealer sells it for about $18 a gallon which isn't too bad for a concentrate.


1994 BMW 530i, 253K
1996 Honda Accord, 289K
1999 Toyota Sienna, 437K
2000 Toyota ECHO, 290K
Re: Re-using good coolant? [Re: Jarpin] #5444216 06/01/20 08:23 PM
Joined: Dec 2002
Posts: 44,232
J
JHZR2 Offline
Global Moderator
Offline
Global Moderator
J
Joined: Dec 2002
Posts: 44,232
If it was a few months old, I’d say to consider it, maybe after filtering it.

If it’s over a year, just replace. The addditives deplete, so it’s good to replace them.

Re: Re-using good coolant? [Re: Jarpin] #5444219 06/01/20 08:28 PM
Joined: Aug 2005
Posts: 238
M
meadows Offline
Offline
M
Joined: Aug 2005
Posts: 238
Pretty sure I got a gallon of red in garage if you are close enough.

Re: Re-using good coolant? [Re: slacktide_bitog] #5444297 06/01/20 10:40 PM
Joined: Feb 2009
Posts: 39
J
Jarpin Offline OP
OP Offline
J
Joined: Feb 2009
Posts: 39
Originally Posted by slacktide_bitog
For the timing belt, I hope you got the Aisin kit (or went to the dealer, NOT eBay!)

It's a Continental Contitech Pro series kit. OEM supplier parts:

MITSUBOSHI belt, KOYO idler pulleys, AISIN Water pump + gasket, and NTN hydraulic tensioner pin.

I'm pretty confident about the quality of it.

Re: Re-using good coolant? [Re: Jarpin] #5444310 06/01/20 10:55 PM
Joined: Dec 2002
Posts: 44,232
J
JHZR2 Offline
Global Moderator
Offline
Global Moderator
J
Joined: Dec 2002
Posts: 44,232
Originally Posted by Jarpin
Originally Posted by slacktide_bitog
For the timing belt, I hope you got the Aisin kit (or went to the dealer, NOT eBay!)

It's a Continental Contitech Pro series kit. OEM supplier parts:

MITSUBOSHI belt, KOYO idler pulleys, AISIN Water pump + gasket, and NTN hydraulic tensioner pin.

I'm pretty confident about the quality of it.

So no continental parts in it?!?

Seems like you did good with the kit.

Re: Re-using good coolant? [Re: Jarpin] #5444366 06/02/20 04:28 AM
Joined: Jan 2011
Posts: 4,124
L
Lubener Offline
Offline
L
Joined: Jan 2011
Posts: 4,124
Originally Posted by Jarpin
I'm about to perform a timing belt change on my Toyota with the red coolant. I drained the radiator and half the engine block. It tests good with the bulb dropper colored balls thingy, so I bottled it back up. Seems like a waste to just toss it. Anyone else reuse after a timing belt change or other job requiring the radiator to be emptied?

Thanks.

The "anti- freezing" qualities in coolant (or concentration) is not what wears out which is what that tester is indicating.. I would put new coolant with distilled water in to maintain the system from corrosion as long as you have it drained.


The "thinking" man's friend.
Re: Re-using good coolant? [Re: Jarpin] #5444411 06/02/20 06:41 AM
Joined: Sep 2002
Posts: 4,744
G
Gebo Offline
Offline
G
Joined: Sep 2002
Posts: 4,744
I've never reused coolant. I do a complete change when doing a timing belt and only use the Toyota Red in my cars that call for Red. It's around $9/gal mixed 50:50 with distilled water and it was made for your engine.
My newer Toyotas use the Pink.

That ball thingy tells you virtually nothing. A pH strip will give you proper info.

Last edited by Gebo; 06/02/20 06:43 AM.

'98 LEX LS400 310K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 75K

Shell Gas and Truck 5w-30
Amsoil OE 10w-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Page 1 of 3 1 2 3
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™