Hi Scotty, I have a 2007 Pontiac solstice with 48,000 miles with the 2.4 4 cylinder automatic. Would you change the tranny fluid around 50-60,000 miles or just keep the tranny fluid that’s in there right now since it’s a 2007?
How does the transmission fluid look? Does the transmission shift fine? Your manual says to change every 100,000 miles; however, if driving under ‘severe’ conditions to change every 50,000 miles. (I personally would change per the more severe interval even if you don’t encounter those ‘severe’ situations, since ATF fluid change is cheaper than a new transmission). The manual does not specify time, just mileage. Fluids can degrade over time but that can be especially expedited with heat (esp. higher than nominal temperatures from loads and driving like a maniac for instance), but if it still shifts fine then I would go ahead and change it (drain and fill only along with filter change). If one wants to be super cautious, just save the old fluid that drains out just in case.
I would change it
