well mine is doing 34rpm for 62miles! I stpped driving it until i find a solution. If i will go up to 80 miles i think it will do 44rpm.
If both cars must have same rpm at same speeds seems not logic because you got a gear more than me....im pretty sure your car will do 34rpm for 62 miles on the FORTH gear...if thats true...means your car is running great and mine is till missing a gear.