Tires: increasing tire size, goodyear integrity, acura mdx

Question
Sir-
I have a 2002 Acura MDX that needs new tires.  The OE tires for this car are 235 65/17 (either Michelin CrossTrain or Goodyear Integrity), I currently have the Goodyears.  I have the opportunity to buy some 245 65/17 Michelin CrossTrains for a really great price (I care nothing about the look of bigger tires).

Would this change in size cause any problems with the cars computer calibration (transmission, speedometer, suspension,etc)?  Also, will gas milage be better or worse?  And would safety be decreased with this change?  What do you think would Acura say?

Overall, in your opinion, do you think that saving a little on these tires is smart.

Thank you,
Seth Briggs
CA

Answer
Seth,

Unfortunately, Toyota saw fit to put 6.5" wheels on your vehicle, and the P245/65R17 does not fit properly.

Howevr, a P245/70R17 or a P255/75R17 does!  Both of these are larger in diameter, and both should hurt your fuel economy.

I'm thinking it would be smarter to stay with the original size

Hope this helps.