should i use this in my 2011 forester that has no leaks at 160000 miles just for insurance?

I used it in my 2011 Forester per user manual around 130k with the coolant drain and change (did not flush or change thermostat). Now at 155k I havent had any problems (or headgasket leaks as the dealer informed me). The Radiator is old and cracking now so I would replace that all together this time along with water pump.

Do I use both bottles or just 1

Some Subaru models are notorious for head gasket issues. Subaru developed this additive with Holts to prevent problems from faulty head gaskets. Use one of these every time you do you your 30,000 miles coolant flush. If adding it before your next flush, just remove 4oz from your radiator (when cool). It is a brown goupy solution with chunks, you must shake VERY well before pouring. Some owners swear by this stuff, some are mad they have to use it in the first place, and some put it in and forget it. Recently has seen widespread use in non-Subaru makes because of it's excellent performance compared to other Stop Leak products. If your car is showing signs of head gasket issues, it is advised to try this out, and then use it with every coolant flush. Other head gasket failure preventions: - Make sure your battery terminals are corrosion free

Can I use this in turbocharged engine?

Most places online say it wasn't meant for turbo models. That doesn't necessarily mean it won't work if you have a coolant leak. It's a rebranded product made a British Company called Holts. The Holts product name is Radweld. Subaru rebranded it for use in a recall of 99-2002 ej25 models with weak head gasket material. Those are not turbo model engines, but the turbo models weren't recalled for it, if that helps. If you have a coolant leak, it's worth a try. It's cheaper than replacing a head gasket.

Subaru Coolant System Conditioner 2 Pack Soa635071 Genuine Oem

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Description

🧊 Keep your Subaru cool, leak-free, and race-ready with genuine precision!

DUAL PACK VALUE - Two bottles included—one for immediate use and one as a backup or share with a fellow Subaru enthusiast.
BROAD COMPATIBILITY - Perfectly engineered for 1993-2008 Impreza WRX STI, 1998-2008 Forester, and 1990-2008 Legacy & Outback models.
LEAK REDUCING POWER - Clinically proven to reduce small leaks and extend the lifespan of your head gaskets—saving costly repairs.
GENUINE SUBARU QUALITY - Trust the official SOA635071 formula designed specifically for Subaru’s green coolant systems.
EASY PREVENTATIVE MAINTENANCE - Add during coolant flushes to proactively protect your engine and avoid unexpected breakdowns.

The Subaru Genuine Coolant System Conditioner SOA635071 is a specialized additive designed exclusively for Subaru vehicles using green coolant. Compatible with key Subaru models from 1990 to 2008, this dual-pack product helps reduce minor leaks and extends the life of head gaskets, offering a cost-effective, preventative maintenance solution trusted by mechanics and enthusiasts alike.

Specifications

ASIN	B00WFI0W2Q
Best Sellers Rank	#77,385 in Automotive ( See Top 100 in Automotive ) #65 in Automotive Replacement Engine Coolant Recovery Kits
Brand	Subaru
Customer Reviews	4.6 4.6 out of 5 stars (695)
Date First Available	April 20, 2015
Is Discontinued By Manufacturer	No
Item Weight	9.9 ounces
Item model number	SOA635071
Manufacturer	Subaru
Manufacturer Part Number	SOA635071
Package Dimensions	4.76 x 2.48 x 2.44 inches

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