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Old 03-03-2004, 05:41 PM   #1
Gunner
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Default WRX Manual Gear Oil Dip Stick Question

I recently checked my gear oil and it was close to the L mark on its dip stick. I wonder approximately how much oil is needed to fill up to the F mark? Anyone has experience?

I am going to get some Valvoline 75W90 GL-5 dino oil and a long, bendable funnel to top it off.
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Old 03-03-2004, 07:16 PM   #2
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taking a stab in the dark....a qt.

but do half at a time and check before adding more
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Old 03-03-2004, 07:45 PM   #3
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Thanks for the quick reply.

One more question. In the manual, it says not to mix gear oil because of different additives in different gear oil. Will it be bad if I top it off with 1/2 or 1 qt of gear oil different from the factory fill? My car has ~2700 miles.

In other threads someone mentioned that there was a Subaru OE oil and they posted part numbers too. However, I phoned 2 dealerships around me and saw in person in a 3rd dealership, and they all claimed there was no OE Subaru gear oil. The 2 I phoned used Pennzoil 80w90, and the third one I went to had a drum of Mobil HD 80w90 as gear oil.

Am I better off changing the gear oil? Or is it good enough to top it off with whatever GL-5 75w90 or 80w90 I get?
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Old 03-03-2004, 08:23 PM   #4
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If memory serves, someone wrote Subaru and asked about this. They said standard fill was Valvoline 75W-90 non-synthetic gear oil. Good luck finding it, around my area, no such thing exists.
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Old 03-03-2004, 09:07 PM   #5
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I think people are reading way too much into all this.
Just top up with the properly rated gear lube you have.
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Old 03-04-2004, 12:25 AM   #6
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Quote:
Originally posted by Unabomber
If memory serves, someone wrote Subaru and asked about this. They said standard fill was Valvoline 75W-90 non-synthetic gear oil. Good luck finding it, around my area, no such thing exists.
I had the hardest time finding it, too!!! God! I looked freaking everywhere. Anyway, I filled it up with another type of dino oil and it's been fine since 1500 miles ago.
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Old 03-04-2004, 05:37 PM   #7
Gunner
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Thanks for the advice guys.

If many people really want the Valvoline 75w90 dino, maybe I can set-up a group buy (not really group buy since we are not getting a discount or something), but it is available online through Kragen.com in my zip code... I don't know...
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Old 03-05-2004, 04:31 PM   #8
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i say just change all the gear oil out and put in valvoline 75w-90 dino. i just got a 5 qts at the local kragen for super cheap, but they didnt have it in the big 4 qt jugs, which they do for the 80w dino. i had to buy all 1 qt containers. weird.
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Old 03-07-2004, 10:04 PM   #9
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L to F is not a full quart; try 1/4 qt at a time.

Mine was low so I added a full qt (Mobil 1 synthetic) and ended up overfilling it. Neither that nor the different oil seems to have done anything to it, though ...
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Old 03-08-2004, 01:52 PM   #10
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Quote:
Originally posted by Unabomber
They said standard fill was Valvoline 75W-90 non-synthetic gear oil. Good luck finding it, around my area, no such thing exists.
Hello,
I know you can get the Dino Valvoline (75W-90) gear oil at CARQUEST stores. It comes in a white bottle (1 qt. quantities).

Jason
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Old 03-08-2004, 05:30 PM   #11
Gunner
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Default Another Dino Oil Option

Another option on top of Valvoline 75W90, is Mobilube HD 80W90 gear oil. I don't think it is available in retail bottles. I saw it in bulk drum form in Santa Cruz Subaru. I researched on it a bit in Mobil's site and emailed Mobil about it. And they say it does not contain LSD additives. It is a dino oil also. So it should help the synchros work better. I have no personal experience with it yet. But from Mobil's info and the fact that it is used by one of the better Subaru dealerships in the Bay Area, it should be good stuff. Being 80W90 should be fine for those of us who don't see snow. Its product sheet and email from Mobil are available upon request when I go back from work tonight.

Maybe someone can post their experience if they have used this oil before.
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