[svxistentialist]

Originally Posted by svxistentialist

You would actually expect a drop, because the engine is now revving more for the same speed than it was before.

Joe

Originally Posted by lhopp77

Actually it is very reasonable to assume that you would get fewer miles per gallon with the 4.44 swap if you continue your usual driving habits. To maintain the same speeds that you are used to driving, your engine will have to turn at higher rpms---generally meaning higher fuel consumption.

Lee

Yeah, that's correct Lee, I did actually mention that in an earlier post.

Running the maths on it an acceptable touring mileage of 28 with the original 4EAT final drive will now deliver:

28/4.44 *3.54 = 22 mpg.

It's likely that the tendency of the 4EAT to seek higher gears when changing up [based on the internal mapping] will have the gearbox running at optimal torque all the while with the lower final drive, which will mitigate the consumption loss of gearing drop a little bit.

I'm just musing that Rebecca may have another factor adding to the increased consumption.

Joe