DumbasSi

I'm looking at getting a new set of tires for the fiance's 03 Civic to replace the crappy OEM Firestones. The OEM size is 185/65/15, and I was looking at upgrading to a 195/55/15 or even a 205/50/15 on the stock steelies. My question is, with the different sized tires, the speedo will be off (too fast) by around 5km/h. Aside from the speedo being a little off, will there be any adverse effects to the car (motor, tranny, ecu, etc.)? Will it alter the odometer reading at all, or even the oil change and service intervals?
Thx.Mike

Whiplash

eh, not to worry pal..
i'd stay 65 on 195, maybe 60 on 205

handy little program for ya
http://home.cogeco.ca/~darkangel/programs

Whiplash

ya, 205/60/15

DumbasSi

I was actually thinking 205/55/15 for a bit lower profile, and a better look once the car is lowered. The speedo will only be off by 2.4km/h. Will it effect anything mechanically or otherwise? I'm guessing the odometer will read a little high, but that just means her services (oil, etc.) will happen a bit sooner then needed.

Whiplash

recommended is 8,000km anyway so..

ya, the speedo'll be a bit off, but no big deal..(about 3-4 km at 100kmph)
everything else will be fine..
i haven't had any issues with mine at less than 1%, don't see you having any with less than 2%