If you keep your speed at a point just after the shift point for your automatic you will get the most fuel economy.
Can improve fuel consumption by tail gating because this reduce drag but not advisable. My car don't have gears cos is CVT but I don't shift to N even at traffic light because my CVT box is expensive and might cos more wear and tear. Anyway, the box is design to disengaged even in D when idling for sometime. The reason high-rev during down hill is that your car micro-processor detect going down hill so the auto gear would shift to lower gear so that engine braking can happen for safety reason, correct me if I have wrong understanding.
This is so true... I hadn't realized it for a while until I did a test on the same patch of highway. Drove it a various speeds, and the 90km-95km/hr mark seemed to be the sweet spot in terms of fuel economy/speed. After 100km/hr, my fuel mileage dropped and only got worse as I went faster.
So if ya someone is tailgating you look for a WD sticker on the windshield before resorting to road rage ... it might just be Mike trying save some petrol True on drag and draft though !!
test drived a Golf GTI with DSG. super smooth, hardly feel the gear change but fuel compsumtion will be a lil higher DSG is way more efficient than standard auto 2.0T FSI (same as those used in Audi A4) but the pricetag is the main killer
That sounds counter-intuitive. What I mean is that I'm getting about the same FC at 140 km/h as I do at 110 km/h.
Hehe.. The Mythbusters did an episode on it. Tailgating a large trailer truck is really effective, but darn dangerous!
What I meant is, if you want to save fuel, go below 90km/h, not asking you to go faster to get similar fuel consumption.
Oh, okay... Well, I do know that. It's just that I'm quite surprised to be hitting that kind of FC even at higher speeds.
Heh, I always thought that "drafting" the semi's would help fuel economy, but you never know what they'll do on the road
yup it's very true that below 90, the FC bumps up a great notch. but of course, it's a much slower drive.
LOL!! Indeed. Actually, many people here have died because they slammed into lorries/trailers (when they suddenly braked) or when the lorries/trailers slam into them (when their brakes fail). So it's always a good idea to keep away from these behemoths!
Yep, exactly why I give semi's their space on the road (even when they don't return the favour ). It's simple physics... if anything were to occur, the larger mass would most definitely have the advantage over my smaller vehicle