Originally Posted by brad_li08
Not that it helps, but I've got the exact same issue. I've had to bring my '11 WRX in to my dealership 3 times for the same problem. Misfire on all 4 cylinders. I've tried 6 different gas stations and my oil has been changed by Subaru, so I assume they are using the right oil. Still having the same problem.
You're not alone.....
Don't ever assume the dealers use the right oil. I don't have an STI, but I was thinking of putting the EXTRA-S gear oil in my 2.5, so I called 3 Subaru dealerships here in Toronto to inquire about the price, all 3 had never heard of EXTRA-S... considering that it states in the STI manual that EXTRA-S gear oil is mandatory for current STIs.
These dealerships didn't have it, makes you wonder what they use on new STI transmissions.