Extreme/expensive mods to gain milage in (turbo)diesels

[TimV]

I posted this in my car's threat:

Originally Posted by TimV

At the moment i aim processing an differential ratio change.

Going from an 4,27 diff to an 3,31 diff.
Thats an 22,48% bigger gear.
Hopefully it will lead me to an 10% lower fuel milage

Speeds now:


And what they will be then:

To give you an idea of speed vs gear vs rpm.

Right now, i don't go above 2000rpm, only in 5th gear, to reach a speed of 100km/h, otherwis, ime to slow and will be hit in the back by a big rig

[TimV]

All the parts for my 500W coolant heater have araved. But no time nor non weth weater has checked in....

Maybe tomorrow...