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2014 Forester XT Touring CVT
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Discussion Starter · #1 ·
Hello All,

I just picked up a 2014 DGM FXT Touring. Love it so far, but have a few questions for you all.

1) What oil temps are you all seeing on the Multi Display? I am sitting at or a little above 200 F on normal driving and on a little bit of accelerating I.E. Highway on ramp or passing, 210-214 F. Seems a tad high to me.

2) Under Said Highway on ramp romp I see PSI hit 16PSI then tapper to 10 then boost to 12-14 for a moment then falls all the way down to 9PSI. Typical for you all? CVT or Traction Control causing this?

Thanks for the help everyone.
 

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2014 2.0 XT yes
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1) What oil temps are you all seeing on the Multi Display? I am sitting at or a little above 200 F on normal driving and on a little bit of accelerating I.E. Highway on ramp or passing, 210-214 F. Seems a tad high to me.
That's roughly what I see. Maybe a touch higher, but I wouldn't expect it to be exactly the same.

2) Under Said Highway on ramp romp I see PSI hit 16PSI then tapper to 10 then boost to 12-14 for a moment then falls all the way down to 9PSI. Typical for you all? CVT or Traction Control causing this?
Traction control events are flashed up on the MFD, so you'll know when they are happening. The screen that shows the picture of the drive train also shows the history of said events over a time window.

When you do your boost test, are you at WOT the whole time? What SI-Drive mode is selected? Are you in "D" or "M"?
 

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2014 Forester XT Touring CVT
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Discussion Starter · #3 · (Edited)
:Banane29:
That's roughly what I see. Maybe I touch higher, but I wouldn't expect it to be exactly the same.
Thanks, that is good to know. Several Ride Along Folk with tuner oriented minds have commented on the temps, even a dang GTR Black Edition Owner, Sigh. Can anyone say STI Oil Cooler Addition? LOL.



Traction control events are flashed up on the MFD, so you'll know when they are happening. The screen that shows the picture of the drive train also shows the history of said events over a time window.

When you do your boost test, are you at WOT the whole time? What SI-Drive mode is selected? Are you in "D" or "M"?
Some Wide Open, S#. Definitely noticed that a 50% Throttle feels more smooth and more Boost in the pants feeling than a WOT. Also question on the Twin Scroll. Honestly everything I ever read was that the benefit of Twin Scroll, is no perceived Lag. However my experience so far is that there is major LAG under 2K RPMs. That being said traffic is horrible here in Nor Cal and this could honestly be attributed to Heat Soak for all I know. just curious if anyone else notices Turbo Lag under 1.8K-2K RPM? Thank You for the response.
 

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2019 Crosstrek 2018 Forester XT
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There is a thread on here within the last few weeks on this very subject. I can't find it. Your temps are not at all high.
 

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2014 2.0 XT yes
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Note that the unofficial word from Subaru is that best acceleration is achieved in S mode with D selected.

I've noticed that measured boost begins to build almost immediately -- much faster than my old WRX with 16G turbo, which did almost nothing until 3,000 RPM. Peak torque starts at 2,000 RPM. That's when things get interesting.

But it's not a "kick in the pants" feeling. It's easy to get fooled by the CVT. Whereas my previous vehicle would hit like a bat to the face once boost arrived, the new XT has a very linear, casual thrust. No bouncing it off the limiter. The CVT decoupling the RPMs from the acceleration messes with my butt dyno, although you mentioned that you are testing in S#, which is more normal.

The launch from a standstill isn't stellar -- this seems to be a trait of a CVT, or maybe an engine computer protecting the CVT. Roll-on performance should be good though.

My technique is to double-tap the downshift paddle before rolling on the throttle to make sure the engine is in the power band, and to leave no doubt to the computers on board that I intend maximum acceleration.

A few of us have observed that stabbing the gas to WOT is less effective than rolling it on. Give it a try.

It's a very "managed" drive train that takes some getting used to versus other vehicles I've driven.
 

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Discussion Starter · #7 ·
NealLV, This is my exact findings so far as well. Coming from a STI, to a LLBean Legacy 3.0H6, and now to this (Family Life makes things interesting) it is a new feeling, especially since I have only ever owned Subarus, this is my 8th one. this is like a whole new Experience of driving in a Boxer, especially a Turbo Boxer. But to be Honest... I am Loving it so far. the mid Throttle subtle presses through the gas, make for some interestingly exciting feelings. This bad boy has made me smile with a few unexpected romps on the freeway a few times now. Loving it so far. But truth be said an Access Port Flash would be something to look forward to.
 

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I don't think my oil temp has gone above maybe 208F.....Usually sits around 194-200F
 

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2014 XTP CVT
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I have seen up to 105 (221 in your #s) but normally 94 (201) and I've had up to 17.8 PSI on a hard launch.

The CVT really is something different, just when I think I am getting the hang of it and how to get the most out of it, then it does something totally different!

I agree the roll-on does seem to work a lot better than just planting the foot.
 

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2013 SUBARU OUTBACK 5 spd auto
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You are running synthetic oil which a lot of auto makers of turbos regularly run 240F oil temps. Running 210F is a non issue. Synthetic oil is good to close to 300F before getting into the flash point of the oil.
For an NA engine 210F would be hot but not for this turbo...
 

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2019 Crosstrek 2018 Forester XT
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You are running synthetic oil which a lot of auto makers of turbos regularly run 240F oil temps. Running 210F is a non issue. Synthetic oil is good to close to 300F before getting into the flash point of the oil.
For an NA engine 210F would be hot but not for this turbo...
I'm going to guess that the turbo doesn't affect the bulk oil temp where this measurement takes place. (I;m assuming it measures bulk temp.

Oil will usually run hotter than coolant temp (when vehicle is warmed up) and the higher the load the higher the oil temp runs over coolant temp. That certainly holds for NA's also. I could easily see bulk oil temp going past 230 with a 75% load on a warm (not even hot) day.
 

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I'm going to guess that the turbo doesn't affect the bulk oil temp where this measurement takes place. (I;m assuming it measures bulk temp.
It is measuring sump temp, but it doesn't have to measure the oil return line to see an increase in temps. Just like if you run scalding hot water into a luke warm bath, it will eventually get warmer. The added heat from the turbo will heat the bulk of the oil over time. Actual turbo oil return is probably 20-30* higher than measured.

Do the 2.0XTs have factory oil coolers?
 

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2017 Forester XT Touring EyeSight
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Maybe it's no help to add to this old thread, but my '17 XT after 57,000 miles, including a 10,000 mile cross-continental round trip towing a 1,000 lb trailer, shows a clear pattern that its oil temperatures stabilize at levels that are proportional to speed and power and ambient temperature. If I'm just puttering around the suburbs at 30-40 mph in the winter, it won't get above perhaps 190F no matter how long I drive. In summer that same drive might give 200F. Getting on the freeway and going on level roads at ~65 mph for more than a few miles would raise it perhaps +10F above the on-street levels. The most dramatic oil temperature I've seen came climbing up northbound US395 from Bishop towards Mammoth in California, a climb of many thousands of feet, in summer temperatures and probably pretty fast. I think I saw 230-235F. As others said above, I agree none of these temperatures are a concern.
 

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My oil temperature stabilizes at around about 92c /197.6f with ambient temperature at 28c - 35c / 82.4f - 95f.
 

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2017 Forester XT CVT (High Torque)
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Subaru has been designing for higher temps to increase efficiency, which means that things can get very hot when ambient temperatures and load are high. I’ve seen temps up to 245 under fairly normal conditions driving in the mountains during a heat wave. Once I managed to boil over when the temps were 110+F and I was pushing the engine hard in S# on a twisty mountain pass. Just be careful or upgrade the radiator and/or fans (Mishamoto

The boost variation you are describing is very likely due to pressure leaks in the intake path. Subaru used cheap hose clamps that don’t deal well with heat expansion and contraction. The stock clamps have slots that allow for deformation of the hose and small pressure leaks. Once you are leaking boost pressure you will get peaks and dips and the computer gets confused. Look up the “Danoz Fix” on these forums, named after the forum user who discovered that Breeze brand hose clamps will correct this issue.

I replaced my intake hose clamps with Breeze clamps, and that problem cleared up. They have a smooth liner and can be safely tightened more than the stock clamps. Now my boost pressures are very stable at 14-15 with about a 17-17.5 peak. There is some variation with temp and altitude, but not the wild variations I was seeing before.

I feel like this is a defect that deserves a recall, but unfortunately there are few enough XTs on the road that Subaru can ignore this known issue.
 
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