Gear shifting - Manual Transmission

[Vitalie]

Hi Everyone,

It's been over a year since I have this tracker now but I still learn to drive it.

Just today I was reading in the owners manual about the speeds the gears should be changed for best fuel economy

Here it is:
Acceleration
1 to 2 at 15 Mph
2 to 3 at 25
3 to 4 at 40
4 to 5 at 45

Cruise
2 to 3 at 20-26 "range"
3 to 4 at 30-35
4 to 5 at 39-45

I tried this today and from 1 to 2 to get to 15mph I have to rave the engine to 4000 ????. it gets a bit lower as you go up but it just feels like driving aggressive and not fuel friendly. It feels tho better shifting the gears.

I usually change my gears in 2500-3000 range what is lower in speeds.

also they say if you drive lower than 20mph to go in 1st.

I can only go in 1st if completely stopped or at most 5-6mph , more than that I get bad noses and actually it doesn't even let me.
I understand this is bad synchronizers but what is this what is in owners manual? Are they serious raging the engine in 4000s before shifting.

Just want to know what other people do this? at what rpm/ mph the shifting is happening for you?

Thanks everyone for your inputs.