Hi all!
I have a Kubota D722 powered Superdream diesel. It has a CVTtech drive from an Aixam microcar.
Some pictures:
It does 80-95 UK MPG with mixed riding. I have been trying things to increase the efficiency. So far, I have done the following:
- Installed oil Tempreature gauge
- Thinnest oil possible
- 40psi tyre pressure
- Insulated sump
- grill block (90%)
- LED lights all around
- advanced injection timing as much as safe
- Oil to Water heat exchanger.
- Windscreen
We are in the winter at the moment and have avg temperatures of 3-5 Degrees C (37-45F). Since I installed the oil temperature gauge, I was surprised that around town, my oil temperature never rose above 35-40 Degrees C, after installing the oil/water heat exchanger it now gets up to 55 quickly but stays there. I haven't ridden on highways yet, as this always gives hotter coolant temperatures.
I believe that getting more heat into the oil/coolant will make it more efficient. I have had many Mercedes diesels that have had an electrically powered coolant heater (powered by the alternator).
I wonder if its there is a net efficiency gain by heating the oil filter housing with a 12v heating element?
Any other thoughts on how I can increase the efficiency?