Hi guys,
Have finally made my way through 87.5 litres of various flavours of diesel (83% Bio 17% Dino) with my undertray on, and I'm showing a 4mpg (uk) increase from 58 to 62mpg. That brings me into the 50's in US mpg.
Initial observations:
- Noise levels seem higher (tho this could be my hard tyres);
- I can hear more 'wind noise' around the A pillars (perhaps the road noise has dropped so I can now hear this);
- This is only the first full tank with the tray on, and it is pretty roughly built;
- I have been driving VERY VERY slowly tho I was doing that last tank too;
- Due to the price of fuel in the UK (about $2.28 per litre), the motorway network has slowed down, with many lorries now limited to 50 by their owners; and
- I need to tune the exit angle, it is way too steep as it is.
I have also just scored a scrap garage door, so will remake my undertray from Sheet Metal to make it smoother.