1997 850 GLT Turbo is yellow coolant OK?

moses3 · Post by **moses3** » 02 May 2023, 11:05

My car has the yellow coolant in it.... Maybe OAT? HOAT? Universal?

Is that OK? Or does it need blue Volvo coolant?

What are the potential consequences?

Post by **850 LPT** » 02 May 2023, 18:36

If it is Zerex it's probably fine. But I'm not sure if this could be something else?

Post by **wizechatmgr** » 02 May 2023, 18:36

Yellow/green is fine... Lots of people run it.

454cid · Post by **454cid** » 03 May 2023, 00:49

I found the blue volvo coolant to be not that expensive compared to local offerings when ordered through IPD.

Post by **abscate** » 03 May 2023, 04:07

454cid wrote: ↑03 May 2023, 00:49 I found the blue volvo coolant to be not that expensive compared to local offerings when ordered through IPD.

It’s even cheaper when you get your replacement from FCP. Two bottles of mix begat two free bottles of concentrate, too.

Post by **rguzz** » 03 May 2023, 07:05

Not to start a coolant thread but I didn't switch over to Volvo coolant because I felt uncomfortable doing so without flushing out all the old coolant, which seemed labor intensive to me. Don't know if "compatibility" is really an issue but like most of us I keep clean "yellow" stuff in there. No reason to believe that hasn't been fine for the last 20+ years. Search the forum, or others, for endless discussion on this subject when you feel you need something to do.

Post by **abscate** » 03 May 2023, 09:10

I flush out old by idling the car with the cap off, the drain cock open, and overflowing the fill tank for 30 minutes with a garden hose.

It’s a perfect time to wash and wax the car while you watch it , too. Don’t leave it as Mr Murphy will slip your hose out and cook your cylinder head.