I-10 south from phoenix is a pretty flat road.

On a different note, after driving the car around this week I notice the transmission seems to be making a lot of noises after the dealership got there hands on it. I'm not sure what it sounds like in a brand new 8 so I have no basis for comparison. If there is anyone that lives in surprise, az that would like to take a look at it to tell me if the noises coming from the transmission are normal that would be great.

Also, the dealership said they had to put in some fuel and oil additives along with the re-flash but they didnt let me know exactly they put in.

 

i'm having similar problem like you.
Fact
the car go slow than it used to about half slow.
In park or Neutral position, The highest acceleration is 4500 rpm and sound weak.
any suggestion ?
top speed on a high way is 65-70 mph( it used to go up to 120mpH)
it hard to speed up.
it take so long to speed up and catch up with the traffic.
2005 Mazda Rx8 AUTO


need your help guys help me.

 

loss of power.....dum-----------dum------------dom!!!
geta compression test dude.