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2003 Subaru Legacy coolant? #4598424
12/08/17 07:48 PM
12/08/17 07:48 PM
Joined: Dec 2017
Posts: 2
Wheat Ridge CO
johnnyv38 Offline OP
johnnyv38  Offline OP
Joined: Dec 2017
Posts: 2
Wheat Ridge CO
I recently acquired a 2003 Legacy wagon with low miles 43k. I don't believe the coolant has ever been changed or flushed. What coolant can I use? Currant coolant is Subaru green. Should I stick with Subaru OEM or are there other brands that are cheaper but just as good or better?

Re: 2003 Subaru Legacy coolant? [Re: johnnyv38] #4598448
12/08/17 08:08 PM
12/08/17 08:08 PM
Joined: Feb 2015
Posts: 2,194
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,194
Slovenia EU
Glysantine g48 a.k.a g11.... That is usually green/blue dyed...


2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: 2003 Subaru Legacy coolant? [Re: johnnyv38] #4598453
12/08/17 08:10 PM
12/08/17 08:10 PM
Joined: Nov 2017
Posts: 286
North of you Idaho
KneeGrinder Offline
KneeGrinder  Offline
Joined: Nov 2017
Posts: 286
North of you Idaho
Please spend a lot of time researching this subject for your specific motor. Go to a Subaru forum, figure out what motor you have. Some Subaru's have headgasket problems, they have an additive to use with coolant changes, if your type of engine is supposed to have it added, please ad it! Or you will have issue's later down the line. I would just use the Subaru coolant If I was you. Pentofrost A2 would be your other option.


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
Re: 2003 Subaru Legacy coolant? [Re: KneeGrinder] #4598596
12/08/17 10:42 PM
12/08/17 10:42 PM
Joined: Aug 2008
Posts: 339
NJ
Padawan Offline
Padawan  Offline
Joined: Aug 2008
Posts: 339
NJ
Originally Posted By: KneeGrinder
I would just use the Subaru coolant If I was you. Pentofrost A2 would be your other option.


Exactly this, and add a bottle of the Subaru Cooling System Conditioner (or Holts Radweld).

Re: 2003 Subaru Legacy coolant? [Re: johnnyv38] #4598620
12/08/17 11:30 PM
12/08/17 11:30 PM
Joined: Nov 2013
Posts: 64
York, Pa
fozzdesy2001 Offline
fozzdesy2001  Offline
Joined: Nov 2013
Posts: 64
York, Pa
Originally Posted By: johnnyv38
I recently acquired a 2003 Legacy wagon with low miles 43k. I don't believe the coolant has ever been changed or flushed. What coolant can I use? Currant coolant is Subaru green. Should I stick with Subaru OEM or are there other brands that are cheaper but just as good or better?


If you are getting something other than OEM Subaru I can recommend the gold colored Peak Global. It has an aluminum friendly formula but it can be harder to get than the Subaru green stuff your Legacy was factory filled with. Nice to find a low mileage 2003 Subie!


2001 Subaru Forester S
Replaced with a 2006 Forester

2004 Subaru Forester XT
Death by deer. Replaced with 2003 Impreza Outback Sport (beater)
Re: 2003 Subaru Legacy coolant? [Re: johnnyv38] #4607688
12/18/17 09:43 PM
12/18/17 09:43 PM
Joined: Dec 2009
Posts: 7
Chapel Hill,NC 27514
Jetta16 Offline
Jetta16  Offline
Joined: Dec 2009
Posts: 7
Chapel Hill,NC 27514
use the OEM subaru coolant


Jetta 96.
Venture 05,
Sierra 07,
outback 07,
passat 08,
legacy 10,2.5GT

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