Dennis Pendleton wrote:
>
> I just installed a MSD 6A ignition on my '97 Sport 3.9L and my mileage went from
> ~20 to ~16 mpg's! I thought these things were supposed to increase your mileage
> not take it away. Acceleration is much smoother and it seems to have improved
> my power but...
>
> I have run 2 tanks of gas thru since the install and kept my foot out of it on
> the second tank thinking it was my driving but the mileage seems the same
> regardless. I also installed Magnecore's and Platinum 4+'s along with the
> ignition but they wouldn't have any thing to do with the mileage decrease.
>
> Anyone seen the same thing?
Are you supposed to run platinum plugs with MSD?Alan S.
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