I wouldn't worry about 94 or 91 on stock tune and you can fill 94 on stock tune. However, if you car is only tuned with 94, then you stuck with 94 and really the only problem with it is it's not available everywhere. When my car with stock and I tried comparing the two gas. I noticed the car lasted longer with shell 91 but I got better throttle response with 94 (got 80km less to a tank). At the end, use whatever you personally like as long as the octane rating is 91 (premium) you got to go
|