Quote:
Originally Posted by mcrews
One thing I noted on my cross-country drives.....
Big rigs tend to drive 55mph. I would never 'force' a big rig to pass me because I was doing 52mph.
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I've been doing around 85 kph indicated on the motorway lately.
Resulting in a record tank at 4.16 L/100km or 56.5 MPG.
But when a semi starts to catch up, I do accelerate to stay out of its way - on most of our roads, they aren't allowed to overtake, and are limited to 56mph.
The best place to be for MPG, is behind them.
You get the benefit of the draft - yes, even at a safe distance if it's a nice, square rig - and the benefit of the slow, constant speed.
Best of the lot are those who are limited to 85 kph / 53 mph by their employer as a fuel saving measure, instead of the 90kph by law.
These rigs usually have this indicated on the back.