09-13-2014, 12:54 PM
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#21 (permalink)
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Master EcoModder
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I never known a semi to stop on a dime. One reason I like to follow them. Now if its a dump truck loosing part of its load I love to shadow far enough back I dont hit the stuff hitting the car and watch all the aholes behind me dart in front of me just to pass the guy.
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09-13-2014, 01:44 PM
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#22 (permalink)
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Not Doug
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Hey, if it is a gravel truck, the safest spot might be right behind them!
Or in front of them...
Semi stopping distance has been discussed on here before. I think that someone said they braked surprisingly well, but that was never my experience with buses or Army trucks.
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09-13-2014, 02:48 PM
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#23 (permalink)
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Rat Racer
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It's not about how far the truck takes to come to a complete stop, obviously a car can do that sooner. But with no warning of what's happening ahead, when the first clue you have that soething is wrong is when the truck is already braking, can you get your superior braking done before you run out of buffer space? Less wind resistance isn't enough of a payoff, and you can still get a good benefit from a safer distance.
Xist- Ask some of the guys who remember 5 tons from back before the brake fix. Hitting the brakes at over 40 mph used to get pretty dramatic results.
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Quote:
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Transmission type Efficiency
Manual neutral engine off.100% @∞MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
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09-13-2014, 07:51 PM
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#24 (permalink)
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Master EcoModder
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I take it you never driven in Northern VA? Its like being in a NASCAR race, 2 ft from vehicles on all corners. One slip up and 14 cars end up in an accident. I do it twice a day as speeds vary from 35-80 mph within minutes too.
You arent on the throttle and you let 12-15 ft open up between your bumper and the guy in front of you and several vehicles will slip through to the other lane and one will become lodged between you and the vehicle that use to be in front of you.
Quote:
Originally Posted by Fat Charlie
can you get your superior braking done before you run out of buffer space?
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09-13-2014, 09:19 PM
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#25 (permalink)
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Just cruisin’ along
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On the rare occasion I draft a truck, I try to stay at the trailing edge of the eddy the truck creates. Basically the same MPG gain and gives extra reaction time.
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09-14-2014, 04:19 AM
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#26 (permalink)
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Master EcoModder
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Quote:
Originally Posted by Fat Charlie
Truckers are just like everybody else: they don't like being tailgated. Sounds reasonable to me.
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Still doesn't explain why, if they hate being 'tailgated', they're so willing to tailgate others.
Also, it's kind of hard to think of closely following a semi as tailgating, when there's 40-60 ft of trailer between the cab and the following vehicle :-) Then the worst part of being tailgated, IMHO, is the glare from the idiots with high-mounted bright headlights, which is not a problem that a semi would experience.
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09-14-2014, 11:27 AM
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#27 (permalink)
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Master EcoModder
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Quote:
Originally Posted by jamesqf
Still doesn't explain why, if they hate being 'tailgated', they're so willing to tailgate others.
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(X'ers) don't like being cut off... doesn't stop some (X'ers) from cutting other people off.
Substitute X for bikers, private drivers, taxi drivers, etcetera... still the same. Still the same argument.
Quote:
Originally Posted by jamesqf
it's kind of hard to think of closely following a semi as tailgating, when there's 40-60 ft of trailer between the cab and the following vehicle :-)
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Running into the back of the trailer is no less dangerous than running into the back of the tractor. Actually... I'd rather run into the back of the tractor.
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09-14-2014, 03:48 PM
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#28 (permalink)
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Eco-ventor
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This guy wins on all counts:
Http://youtu.be/lnYp4srEooI
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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
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09-14-2014, 11:10 PM
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#29 (permalink)
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Intermediate EcoDriver
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One thing that hasn't been mentioned is the fact that 18-wheelers have more ground clearance than the average car. They can easily straddle things that can destroy the average car. (dead deer, road gator, dead elk, torque convertor, folding barricade, whatever...) And they would probably tell all their friends about it on the CB radio and at all the truck stops they visit.
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Fuel economy is nice, but sometimes I just gotta put the spurs to my pony!
Quote:
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Just 'cuz you can't do it, don't mean it can't be done...
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Quote:
Originally Posted by elhigh
The presence of traffic is the single most complicating factor of hypermiling. I know what I'm going to do, it's contending with whatever the hell all these other people are going to do that makes things hard.
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09-15-2014, 01:45 AM
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#30 (permalink)
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Master EcoModder
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Quote:
Originally Posted by niky
Running into the back of the trailer is no less dangerous than running into the back of the tractor. Actually... I'd rather run into the back of the tractor.
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Perhaps for the person driving the vehicle that runs into the rear end, but honestly, how likely is it that the truck driver would even notice something on the order of a Civic or Metro hitting the rear of a trailer?
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