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Old 11-18-2008, 01:01 PM   #1
Super_HKS
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Default Mixing oil with a 2000 legacy

My fianceee has a 2000 legacy GT. Here is the sitation.
The car currently has 5w30 oil in it. The car has a small nick in the oil plug due to something small hitting it while driving. Anyways I checked her oil and noticed it was a bit low. I decided to add a half of quart or so of 10w30 oil. Is this a very bad idea or should it be ok?
Thanks for the help
-Daniel
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Old 11-18-2008, 01:42 PM   #2
obs2008
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its no problem at all. you can mix weights that are close or you can mix synthetic/non synthetic. no worries
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Old 11-18-2008, 01:47 PM   #3
joecerv
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It is not a good idea to mix 5w30 oil with 10w30 oil.

Taken from the owner's manual.

"When adding oil, different brands may be used together as long as they are the same API classification and SAE viscosity as those recommended by SUBARU. "
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Old 11-18-2008, 04:03 PM   #4
Jerry Xu
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I know in theory, it could be no good.
My experience is np. I have a 2001 Legacy GT. Since it burns oil a bit. I keep a bottle in the trunk to "fill-up" in between changes. It is not picky on various bottles of oil I topped off with.
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Old 11-18-2008, 05:17 PM   #5
obs2008
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it doesnt matter if you mix weights, honestly
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Old 11-19-2008, 09:57 AM   #6
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Cool. Thanks for everyones help
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Old 11-23-2008, 03:50 AM   #7
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I'd say mixed weight oil is better than no oil, I always keep some extra oil in my trunk thats a mix of various brands and weights.
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Old 11-24-2008, 12:21 AM   #8
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You will have zero problems mixing weights, you can actually custom-blend your own weight if you would like. Just keep the oil level at full, and you'll be fine.
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