Averaged 58.7 MPG over 50 miles on Monday. Average speed was 45 MPH. No P&G involved, just DWB, DWL and steady throttle position.
I noticed that the cooling is somewhat efficient at lower speeds (lower than 30 MPH); temp was stable at 186F. At highway speeds (50-55 MPH) cooling is sufficient, but it sits a little bit higher at 190F. It's probably due to the angle of the opening of the lower grille.
The grille blocks are now held in place with a double-sided industrial strength tape. Figured I needed some extra peace of mind. I would never forgive myself if I had lost them on the road, not to mention the hazard to the other drivers.
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