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Premium Member
2014 Forester XT Touring CVT
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12,787 Posts
Discussion Starter #1
As some of you already knew, I sent off a sample of my CVT fluid for analysis.

I also sent a sample of the new, unused fluid that I got from Subaru.

Both analysis results are included below. The used sample had 51,538 miles on it and results were promising. I expect that the 100,000 mile interval will be adequate for my CVT.

Please keep in mind that I do a lot of highway driving (90%+) and am not an aggressive driver. If you push your XT to the limit regularly, please take these results with a grain of salt... yours will likely be different.

Keep in mind that there is no way to do a transmission fluid flush, so you will have to do several consecutive drain - fill - drive cycles to get the dirty oil cleaned out. Each cycle will dilute the dirty oil with cleaner oil.

FRESH OIL


USED OIL
 

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Registered
2014 forester XT touring CVT
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1,666 Posts
Thanks for the post josh! Was all over it on Facebook also! I'm sure 100k of how you drive is safe! I drive hard so 50k is my change for th cvt fluid
 

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Premium Member
2018 Forester XT Touring CVT
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1,008 Posts
Good to know. Thanks for the info! I probably fall somewhere in between you guys as far as how hard I am on the car, so I'm thinking changing it soon at 70k will be adequate. Maybe I'll try and get a sample of my used fluid to see how it compares to yours Josh.
 

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2015 Forester 2.5i CVT
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157 Posts
Thanks for posting this.

I wonder how this would turn out for the non-XT (non-High Torque) CVT...
 

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Subassador
2017 Tacoma DCSB TRD OR 6MT!!!
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925 Posts
Nice. Thanks for sharing this info!
 

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Premium Member
2014 Forester XT Touring CVT
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12,787 Posts
Discussion Starter #7
Happy to help, all!

Hopefully some people who drive their XT aggressively on a regular basis can get their samples analyzed too... I would be interesting to see how the CVT durability will be for different driving styles.
 

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2004 FXT / 2020 Outback Onyx XT
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1,660 Posts
Wow, this stuff is very light in metallic additives. The High Performance Gear Oil is light in additives as well.
 

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2005 Forester XT 5sp MT
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102 Posts
I just had my FXT CVT fluid changed at 35k miles. $180 from the dealer. It was dirty looking for sure but as we all know may still have some good life left. Going to send for testing so we can get some more data points. I was running a Cobb AP since the engine was broke in and had some pretty good pulls on it. Once I get the results I will share.

DT
 

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2016 Forester XT Premium automatic
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1,072 Posts
Looks like I better start saving up for the 5 gal pail of Orange oil that we have to buy from the Suby dealer,I have thought of using the Red line stuff,I would like to see what their CVT ATF has in it for chemicals! ed
 

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2016 Forester 2.5i CVT
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183 Posts
The numbers look great. Thanks for taking the time and spending the money! There's still a lot of unknowns though, as in does the ~50K mile CVT fluid still have all the magical properties that is does when new. You'll never know.

I'm still one for an old fashion pan drop where applicable. The 2-3 late model Subaru CVTs I've seen posted on the interwebs with the pans off had a fair amount of glitter and discolored goo in the pans.
 

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SJ13XT
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3 Posts
FYI
I sent your new oil sample over to compare as a base line.
This is from an Australian spec
I do not launch or flog it , I use it for towing aprox 1T boat ( 2200 pounds )
 

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