I just had a few thoughts.
Mostly perspective thoughts.
~ Your wife could be driving a car that gets a lot lower EPA to begin with.
~ Consider your savings as a part of her savings. You save for the both of you!
PaleMelanesian gets
great mileage by not doing any mods, just driving techniques. And there are some things you can do to the car that your wife wouldn't care about - tire pressure up, synthetic oils. Lol, if you had some time to work on the car without her observation, you might even be able to install a WAI. She'd have less power too. I would suggest a gradual transition with that one. You wouldn't want her thinking the car is having problems.
~ Adding an Ultragauge or SG would be good too. Don't say anything, just put it in. Off to the side but still in view. Subtle is a good way to encourage change.
~ Give it time. It may take her years to come around, but when she does it will be well worth it. The best things don't happen over night.
~ This might sound unrelated, but the philosophy still applies. If you want her to take an interest in something you like, take an interest in things she likes.
She may reciprocate the interest. And through that you can also continue to strengthen your marriage at the same time. That is NEVER a bad thing!!
