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Old 10-18-2012, 11:29 AM   #1
under0athh51189
Scooby Specialist
 
Member#: 193959
Join Date: Nov 2008
Location: Spring Hill Fl
Vehicle:
2001 Lexus IS300
05 Wrx AW 18x9.5 WFC#295

Default 2000 legacy best oil

Just picked up a 2000 legacy gt 2.5L N/A and want to do an oil change. I also currently own a 02 wrx and 05 wrx and run rotella t 5w40 in both cars but don't know if rotella is ok for na cars. I also believe the car is having the common external hg leak so wanting to know if there is maybe a thicker oil I can put in to slow the leak more. It drips maybe one drip over night so not bad just don't want It to get worse. Wanting to use rotella if possible maybe the 15w40. Also gonna pick up the coolant conditioner from the dealer will that maybe help the hg leak as well. Car currently has 196k.

Please help
Thank you.
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Old 10-18-2012, 11:39 AM   #2
ManualOverAuto
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Member#: 304662
Join Date: Dec 2011
Chapter/Region: MAIC
Vehicle:
2001 Impreza L coupe
Sedona red Pearl

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Edit: hmm didn't see the 196k miles part....nvm

Last edited by ManualOverAuto; 10-18-2012 at 12:42 PM.
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Old 10-18-2012, 01:43 PM   #3
under0athh51189
Scooby Specialist
 
Member#: 193959
Join Date: Nov 2008
Location: Spring Hill Fl
Vehicle:
2001 Lexus IS300
05 Wrx AW 18x9.5 WFC#295

Default

Haha thanks anyways
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Old 10-18-2012, 02:06 PM   #4
ManualOverAuto
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Member#: 304662
Join Date: Dec 2011
Chapter/Region: MAIC
Vehicle:
2001 Impreza L coupe
Sedona red Pearl

Default

Quote:
Originally Posted by under0athh51189
Haha thanks anyways
For what it's worth, I use t6 in my n/a. Although its an ej22 with 120k miles, so not a good comparison.

Do you know what oil the previous owner used?
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Old 10-18-2012, 02:53 PM   #5
Jessekrs123
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Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

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I've used Rotella and Mobil Delvac 15w40 in all of the Subarus in my driveway with zero issues.(Mainly because pops has a Cummins and keeps a basement full of diesel grade 15w40 oil) 2 of them are early N/A Legacies, 1 04 FXT, and the 84 BRAT.

I even run those oils in the winter, even when most people will tell you to go with a lower viscosity oil in the winter. I have zero issues except for some slow cranking when it gets close to 0*. I still have no problems getting my carb'd BRAT started in 0* temps.

The 15w40 keeps 2 of my HLA motors nice and quiet, especially when cold started in cold weather.

Some people will tell you that the additives in the diesel grade oil will ruin your cats, which is only true if you have excessive oil making its way into the exhaust system, which means you have some serious underlying problems.

As for your externally leaking headgasket...

I don't believe going with a higher viscosity oil will remedy or even help your external headgasket leak. There is nothing you can do to reverse a leaking headgasket aside from having it replaced. Once the damage is there, it is there, it cannot be reversed. Adding sealing agents to your coolant is a very very bad idea as well. Don't even think about it.

Keep driving the car, and continue to keep it well maintained. Check oil levels frequently and make sure your cooling system is up to par and your engine stays at a steady temp. I'm sure it will still last you quite a while the way it sits now. See how long you can go before you start to experience major problems and put some money aside so when that time does come, you are able to get everything sorted out quickly if you need the car on a daily basis.
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Old 10-18-2012, 02:59 PM   #6
under0athh51189
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Member#: 193959
Join Date: Nov 2008
Location: Spring Hill Fl
Vehicle:
2001 Lexus IS300
05 Wrx AW 18x9.5 WFC#295

Default

Alright thanks rotella 15w40 it is. I use 5w40 rotella in both my wrxs but I'm thinking 15w40 also because of the high mileage. Also the coolant conditioner is supposed to be added to the 2000 to 2003 legacy gt phase 2 motors due to the headgasket issue. It was a factory recall type thing but only went for 8yrs or 100k extended warranty and also had to be used from day one to be warrantied. You buy it at the dealer for this reason. It prevents the head gasket issue. I've read some say that even after it started leaking they used this and it slowed it significantly. Doesn't hurt to try. Thanks alot for the help.
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Old 10-18-2012, 03:00 PM   #7
under0athh51189
Scooby Specialist
 
Member#: 193959
Join Date: Nov 2008
Location: Spring Hill Fl
Vehicle:
2001 Lexus IS300
05 Wrx AW 18x9.5 WFC#295

Default

O and really only need the car to last until tax time and can buy the old lady an 05 legacy gt and sell this thing. Should last I'm thinking.
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