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Pentofrost A2 Q #4618651
12/30/17 11:08 AM
12/30/17 11:08 AM
Joined: Mar 2008
Posts: 43
upstate new york
foresthawk Offline OP
foresthawk  Offline OP
Joined: Mar 2008
Posts: 43
upstate new york
I want to put some coolant in the overflow tank on a 2007 Subaru Outback. I look around for what coolant is OK to use, and find Pentofrost A2 can be used for this car make and year, according to their website. Then I see on the container it says not to use with other coolants. The coolant in the radiator is "green" in color, but I don't know what it is. Would you use this stuff to "top up?" If not, what coolant? I'm inclined to just use it, of course at 50/50 but want to hear other views. Thank you very much.

Re: Pentofrost A2 Q [Re: foresthawk] #4618756
12/30/17 12:31 PM
12/30/17 12:31 PM
Joined: Aug 2010
Posts: 5,680
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,680
Champlain/Hudson Valley
I labor under the allusion that Subarus are the most unforgiving when it comes to coolant.

Mess this up and she'll leak.

I'd take my 10 year old Subaru to a dealer and ask if the coolant (green, you say?) looked correct.

If the coolant is supposed to be pale blue (my suspicion) I'd drain and refill with genuine Subaru or have it done.

I say all of this out of fear of creating another leaky Subaru engine. I've seen 'em.

AS ALWAYS: The Pentofrost product might be chemically perfect but why spend time verifying it? Just go with what you know works.

In your case the mystery you should solve is learning what's in there now.

Re: Pentofrost A2 Q [Re: foresthawk] #4618776
12/30/17 12:50 PM
12/30/17 12:50 PM
Joined: Jan 2016
Posts: 325
TX
mooferz Offline
mooferz  Offline
Joined: Jan 2016
Posts: 325
TX
Subaru uses your typical Asian PHOAT coolant, which comes tinted in a variety of colors. That Pentofrost will be formulated virtually identically to the Subaru coolant.

As a less expensive alternative, I'd opt for the Recochem green from Pep Boys- ~$18 delivered via ebay or $15 instore pickup.


2001 Lexus ES300, 235k mi, German Castrol 0w-40, Fram TG8316
1985 BMW R80RT (1L)- M1 15w-50
1993 Volvo 945 Turbo- Rotella T5 10W-30 (CJ-4)
Re: Pentofrost A2 Q [Re: foresthawk] #4618937
12/30/17 04:52 PM
12/30/17 04:52 PM
Joined: Aug 2008
Posts: 339
NJ
Padawan Offline
Padawan  Offline
Joined: Aug 2008
Posts: 339
NJ
The OEM Subaru coolant for your model year is green, so if it's been serviced at the dealer, that's almost certainly what's in there.

You'll have no issues using the Pentofrost A2 to top off the overflow. It's the coolant I always suggest as an alternative to OEM, and what I use in our '06 Saab 9-2x (rebadged WRX).

Re: Pentofrost A2 Q [Re: Padawan] #4619314
12/31/17 01:15 AM
12/31/17 01:15 AM
Joined: Nov 2017
Posts: 288
North of you Idaho
KneeGrinder Offline
KneeGrinder  Offline
Joined: Nov 2017
Posts: 288
North of you Idaho
Originally Posted By: Padawan
The OEM Subaru coolant for your model year is green, so if it's been serviced at the dealer, that's almost certainly what's in there.

You'll have no issues using the Pentofrost A2 to top off the overflow. It's the coolant I always suggest as an alternative to OEM



^THIS, chemically the same. I always suggest it as the highest quality OEM replacement coolant. Its in my Subaru, Honda's and Acura.


08 Tribeca 82k PUP 5w30 wix
06 Accord Hybrid 131k PUP 5w20 wix
02 Chevy k3500 97k Delvac 1 esp 5w40 wix
00 F350 133k Delvac 1300 15w40 wix

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