2011 Ford Mustang V6 rated 31 mpg highway

[101lifts2]

Originally Posted by Tmall

It's the service intervals he was talking about...

Most people do not understand why Japanese service intervals are tigher than the U.S. It is a combination of marketing for U.S. OEMs to lenghten the invervals as with a lack of Japanese understanding on exactly how much lower quality other markets have for fuel, oil and filters.

Most Japanese cars do not require a fuel filter because their fuel purity standards are higher than the U.S, but since many markets will plug up fuel filters in 5k miles, it's kinda a crap shoot on what interval to set certain items.

[pauldun170]

The base WRX is fine until you start adding more power. The stock tranny is close to its limits (at least that used to be the case a few years back). Around 280HP is the "pin" on WRX transmissions...something with some gear or pinion being uber gay. I'm not sure what exactly is the weak part #'s but I'm not in a position to care enough to remember that kinda info.
STi transmission is beefier.