Speedo off??

I drive a 94 Prelude Si 2.3. I seem to be going slower than i think the speedo says at 65mph and up. i believe i'm off by 5-6 mph too slow. Anyone else have this situation?? "Normal" cars, the Buick's driven by granny etc are seeming to all go about 70mph, and unless some weird s#it's going on my speedo is gotta be off.

Also wtf does the little "ns" or "as" mean by the base of the mph's red needle? You have that too? Just figured i'd see an H or somthing, not an ns or as or whatever.
Thanks

do you have aftermarket rims??

do you have aftermarket rims??


No, just the 15's that came on it from factory. i am gonna upgrade to 17 someday though. Will upgrading sizes affect the speedometer, using right size tires of course?

yeah...when you get any rims different from stock it messes up the speedo...but with the stock rims you have it shouldnt...thats wierd man...wish i could be of more help...

My car is off by 3 or 4 miles at about 60. It bothered me at first but got used to it. Stock wheels and tire size.

Thanks just nervous as i have 8 points on my license and cant afford more right YET.

my speedo is off by 3-4 via radar gun

Larger diameter tires make the speedo indicate slower than you are actually going. Mine is 3 mph fast with stock tires.