[CigaR007]

I attached the grille block and went for a drive.

I drove a 70km loop (round-trip) and a 180 km road trip (known route and average fuel consumption for each over thousands of kilometres) and recorded an average reduction of 0.2 l/100km in fuel consumption. Result is based on an average cruising speed of 96 km/h.

These are preliminary results but it looks promising given that the results were obtained in much cooler ambient temperatures 5°C vs 25°C).

As expected, coolant temperature has increased from a stable 79°C to a range of 84°C (cruising @ 2500 rpm) to 95°C under moderate load and acceleration.

Today's trip of 180km, fuel consumption was recorded at 4.5l/100km

Imperial values (US) :

An increase of 2.2 MPG (50.1 MPG to 52.3 MPG) at an average speed of 60 MPH over 112 miles. Roughly a fuel economy increase of 4.2 % vs the factory grille opening.