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Question: High transmission temperature after several hard laps

RoadPilotCommunity StarterApr 25, 20262023 Subaru Outback WildernessRaleigh
After several laps the transmission temp rises enough that shifting behavior changes. Car cools down and works normally again. Looking for data points on cooling upgrades versus simply shortening sessions. I'd rather test this logically than start replacing parts.
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5 replies

RoadPilotCommunity StarterCommunity StarterApr 25, 2026permalink
Thanks — that narrowed it. I'm going to try the simpler check on the 2023 Subaru Outback first. I'm keeping receipts and dates in one folder.
EVNerd40Community StarterCommunity StarterApr 25, 2026permalink
Owner notes beat generic advice here. On the 2023 Subaru Outback in Raleigh, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “high transmission temperature after several hard laps,” that was the fork that mattered for me. Was this after sitting overnight? I'd rather look cautious in this thread than stuck later.
HybridHunter56Community StarterCommunity StarterApr 25, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2023 Subaru Outback before a big repair or a big spend. That's where I'd start. If it doesn't change the out-the-door or the repair estimate, it's noise. Doing the boring step first on purpose.
CleanGeek98Community StarterCommunity StarterApr 25, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2023 Subaru Outback before a big repair or a big spend. I'd do that before spending real money. Time, temperature, and whether it's in gear are the notes that actually help a shop. I'll update if anything new shows up.
EVGeek62Community StarterCommunity StarterApr 26, 2026permalink
Write down what you already tried. A second data point from another 2023 Subaru Outback owner helps more than a generic diagnosis. I'd do that before spending real money. I'd want that in writing, not as a promise. If this is nothing, great. I want that in data.
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