Yes.
But he said 45 miles of which 90% is highway. I would not take that to mean stop and go highway, and if he drove 80-90mph he would still get 17-18 mpg.
Also, I'm not implying he is driving 65mph. Just trying to determine if the vehicle is in overdrive at 65 mph. Because if it's 3000 rpm at 65mph, he has isolated the problem
Yes, I'm not sure there is such a thing as stop and go highway driving. I'd call that City driving, even if it is on say an arterial bypass highway. My commute technically is on a 4 lane highway, but it has intersections, traffic lights, a couple ramps. I consider that city.
If you can get 17-18 mpg at 80 to 90 mph I'm impressed. Maybe if really flat, no curves, cruise, throw in a tailwind. Or maybe really fuel efficient tires, truck lowered, who knows.
But for most of us,
Yes.
But he said 45 miles of which 90% is highway. I would not take that to mean stop and go highway, and if he drove 80-90mph he would still get 17-18 mpg.
Also, I'm not implying he is driving 65mph. Just trying to determine if the vehicle is in overdrive at 65 mph. Because if it's 3000 rpm at 65mph, he has isolated the problem
I'm going to ramble here.
True. There are so many variables. I always associate highway driving with hills, sometimes steep ones, based on the part of the world in which I live. Where you are going along up a fairly steep hill on a 4 lane divided highway, speed limit 110 km/h, most traffic doing 120 km/h. Then, as you go down the hill, there is a curve. Takes some pretty high revs to go up a steep hill at 120. And, a decent chance there is an RCMP cruiser on the downside of the hill lingering in one of the emergency vehicle crossovers. So forget making up your fuel economy by coasting down the hill at 135 or 140.
RE stop and go highways - I don't consider "highways" with traffic lights, round-a-bouts etc. [e.g. commuter highways, arterial bypass highways etc.] to be highways for fuel measurement purposes. They are just wide, boulevard style multilane city streets either within a city or connecting a city with its bedroom towns. Most of my Stratford to Charlottetown commute is on that type of highway, with the speed limited now to limited to 50 km/h on the Hillsborough Bridge, [which has been down to 3 lanes, and narrowed too, with jersey barriers and cones everywhere now for over a year with never ending construction, first to put in a sewer pipe system beside and slung under the bridge, and now putting in an active transportation corridor [aka a walled, giant sidewalk for pedestrians, bicycles, scooters etc.]] and the speed limit 70 km/h elsewhere on that "highway" although most people follow the rule of 10 in good weather/daytime, e.g. 10 km/h over a speed limit of 70 or more.
If someone is at 3000 rpm at 65 mph on the flat, overdrive button NOT disabled, there is a definite problem. With those conditions, the V6 should be roughly 2000 rpm, the I4 roughly 2500.
Speaking of those cones, last year I had the pleasure of running over one of those cones that blew in the wind a few inches to the side and then over on its side. Such a satisfying -crack- as Goodyear Duratrac crushed orange plastic
