Again there is a subtle effect from the 7% increase in tire size. The
odometer now records 7 miles per hundred FEWER than it did before for
the same miles actually driven. If you are using the odometer reading to
figure fuel economy you will get a drop in calculated mileage just from
the new error in the odometer. In a Syncro this results in a 1-1.5 mpg
change in calculated fuel use but not true fuel use. There may be a drop
in true mpg as well but unless you made allowances for the new odometer
error you won't know how much.

Mark

Doug F wrote:

>Running the SA 15" wheels with 215/75/15s on my 87 syncro with a stock 2.1L
>wbx have shown me that it has definitely hurt gas mileage and power.
>
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