Do torque converters eat away at fuel economy?

 

Depends on where you drive <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Moving to Drivetrain Section.

 

You shouldn't see any change in your highway MPG, but your city MPG will suffer a bit. On the highway, the converter locks just like your stock converter. In the city(stop/go driving) the converter spends more time unlocked and slipping.

 

Rough rule of thumb for city driving:

3000 stall & under: -1 mpg
3500 stall: -1 to -2 mpg
4000 stall & above: -2 to -3 mpg

your results may vary. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />