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Gen 6 Turbo Cool Down?

11K views 20 replies 9 participants last post by  The Blue Pearl  
Does anyone know if our turbos in the Gen 6 Outbacks are water cooled? My previous turbo vehicles I have always monitored and shut down the engine based on post turbo EGT. In fact my last two trucks I have used an EDGE CTS with the turbo timer option to automate the process. Do our turbos require a cool down period? Does the factory ECM monitor EGT? I haven't been driving it hard because I'm still inside the first 1000 miles and the weather has been cool, so I haven't been waiting very long to shut down, but I really don't want to kill my turbo either. Thoughts?
It doesn't seem that there is an official statement from Subaru about the need for cooling down the XT/turbo model. Searched manuals for our new 2022 Outback XT. This is my 4th turbo. All previous, Volvo V70, VW Passat and Jeep Grand Cherokee EcoDiesel have required a cool down period. VW and Volvo have been turbo problem free . Sold Volvo at 165K, still have VW also at 165K. Jeep with only 40K. No problems. Religious 4-5K synthetic oil changes, 0W40 for all and cooling down have contributed to this I think. I will set up oil temp gauge on our 2022 Outback XT as soon as i figure out how to do it. Will cool down to near or below 200 deg. Our current and previous turbos may have been oil cooled. Outback may be water cooled. Much to learn about this complicated vehicle and apparently our other turbos.
 
There is an oil temp gauge built in to your Gen 6 Outback, and I have bumped viscosity in my oil to a resource conserving SP/GF6 5w-30 for summer weather.

Our turbos are water cooled, and while I'm not sure when they started being water cooled but definitely after 2002.

In normal everyday driving you don't need to do a special cool-down but if you want to be extra cautious you can drive gently for the last few miles and shut the car off when the oil temp drops below 200F. The oil temps seem to rise and fall pretty quickly in these cars.
Given that I still have my manual typewriter from college I was very pleased that I just added the widgets oil and water temps to the display.