Hi guys! How usually high your RPM, when you drive 100km.h?

 

Welcome to the forum

Manual trans or automatic?

What rear axle ratio?

And tire size?

I have a manual trans with 3.73 rear axle, 29" tires

In 5th gear(OD) I am at 2150rpm at 63MPH(100kph)
If I had an automatic it would be 2050rpm

If I had a 4.10 rear axle I would be at 2400rpm

If I had 31" tires and 3.73 I would be at 2050rpm

So it changes quite a bit depending on YOUR vehicles setup

 

62 mph looked like 2150 to my eye yesterday.
Automatic, 4.10 gearing, running 255-70-16" tires.

Would 3.73 gears see 1,956 rpm?
MATH (3.73/4.10) X 2150 = 1956 rpm
MATH (0.90975) X 2150 = 1955.96

 

Yes, should drop you about 190rpm

 

EDGE, 3.0L, 5 sp. manual, 4.56 gears, 33" tires.

2000 rpms = approximately 55 mph on Fifth.

I would have to run the rpms up to see but I'm thinking 2500 = 65+.