In the 2024 manual on page 380 " SI-DRIVE (If Equipped)". Which version(s) have this feature?
I also have Crosstrek 2.5l with S/I. I have Sport mode on most of the time and find it approves the performance and really don't see much change in gas mileage.You aren't missing anything at all. I had a Crosstrek long term rental with SI-drive. All it does is change the sensitivity of the throttle. If you turn it on for something you'd think would be the driving situation for it, like driving in hilly or mountain areas, the throttle and the CVT fight one another. The car cant figure out a gear ratio, driveablity goes out the window, and gas mileage tanks. It's just a button and a graph on the dash display that makes your driving experience worse.
I equate it to the "Power" buttons that automatic cars had in 90's and 2000's. They didn't do anything but keep the car out of 4th gear. It just provides you an illusion that it's doing something.
I know this is an old post/thread but I've been snooping into the whole SI drive thing a bit. My wife has a 2023 Legacy Touring XT and the only thing any of the other trim levels have that the Touring doesn't is the SI button the steering wheel from the Sport model. I really wish I could find the part number for the steering wheel controls and just plug it in to see if it would then have SI drive. I doubt it but you never know. I'm sure there is a module somewhere else that would be needed too.Legacy Sport (2.4 T) still have SI-DRIVE in US
makes me wonder if it's just deactivated function /missing switch
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Correction: ALL Outbacks (at least in the US) don't have it, including my top-of-the-line '24 Touring XT, which is a shame. Hopefully fixed with the upcoming Gen7.I had a loaner Crosstrek and Forrester that had the S/I drive, the NA Outbacks do not have it.
Your Outbacks already do sacrifice fuel. Yours are way thirstier than ours, though there's other factors that also contribute to that such as the higher ride height even in your standard Outbacks.if anything it's "i" a normal mode in US ..
S holds higher RPM and they will never sacrifice 1% mpg for it here in US
I think what @tw33k1963 was referencing was "NA" being North America rather than Naturally AspiratedCorrection: ALL Outbacks (at least in the US) don't have it, including my top-of-the-line '24 Touring XT,
I just want the best fuel economy I can get, I’m assuming once I get up to highway speed and let off the throttle and engage the additive cruise the turbo will just spool down and my gas mileage should be similar to the 2.5LI liven in Europe and we get the S-I drive modes.
The main thing that it does is changes the throttle map and and eliminates the fake shifts. The fake shifts , while fun, actually slow you down. In S the CVT behaves like an old school CVT. meaning the RPM jumps to peak power and stays there, and CVT changes the ratios non stop, like it should do. As Hyrax is saying, it is significantly faster because of the lack of fake shifts.