Hello,
I have a 1.8l Pontiac Vibe 2010 with an automatic transmission. The car has about 92000 km on odometer and I think its about time to flush the transmission and replace oil in it.
I took the car to the GM dealer to do a transmission flush and they told me they were out of Type IV fluid so they couldn't do the flush. I booked a new appointment and went away. Later that day I checked owner's manual and found that WS ATF fluid is required instead of Type IV.
Would it cause any problems if they had Type IV fluid and used it in my car's transmission? Should I insist on using WS ATF on my next appointment?
Thank you!