Exactly.
Maybe these places:
https://news.nationalgeographic.com/news/2014/03/140314-flattest-states-geography-topography-science
Right foot versus cruise control
- Thread starter 7eregrine
- Start date
Exactly.
Maybe these places:
https://news.nationalgeographic.com/news/2014/03/140314-flattest-states-geography-topography-science
Round trip w/cc yielded me an ob calculated 28.5mpg as that home stretch proved a good bit tougher as per normal. Couldn't sustain 70 for the 1st probably third of the trip but averaged a decent 61 in total that I snapped when i got off hwy, only had 1or 2 downshifts thanks to the hearty torque curve of the 2.5sky. This is better than I've been doing overall but this was pretty much just hwy inclusive of just 1 cold start (not that cold either as my underground garage @work stayed a temperate 46F)..we'll see how I do tomorrow it'll be close but I still like my chances..and driving! I'll do my best to duplicate the things i can control..i will be carrying ~3 fewer gallons of fuel, but if i have time Ill put them back prior to day 2 of challenge
Right foot stage 1 update: 30.8mpg on same exact route clocking same exact average speed (which is what I was paying attention to not my mpg btw) of 67 when I exited hwy..this sunk to 59 by the time I parked in garage as I missed several lights where yesterday I think I made them all. This was carrying approx 3 less gallons of fuel but also with a slight hurting breeze whereas yesterday's was helping. I locked in 6th slowed up hills and slightly faster downhill but never broke 75. Bottom line (not declaring victory yet) but good disciplined driving can and will easily match if not beat the cruise esp if you have some hills involved. **Final results pending**
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When the car computer network of the future has all information about the terrain and traffic, elevation map, wind, weather and road conditions ahead and around, there would be no way for a weak human to beat that. Just no way in hell. Humans were not designed to process all that in the real time by millisecond and still drive.
Until then, human wins, as the brain has more information to work with. Not for very long though.
Until then, human wins, as the brain has more information to work with. Not for very long though.
By that time, we'll be calling that network Skynet and those cars Terminators =)
GJ-Molestor
Banned
- :
- 2011 BMW 528i, 2015 Mazda 6, 1995 Nissan Maxima Manual
I agree with the quoted text profoundly.
with the 2.5L, especially the CX-5 with it's decreased aerodynamics there is a target speed for optimal fuel efficiency, but with my 528i for example (naturally aspirated engine) 8th gear is tuned very long to be efficient on the highway. driving 100KM/H (65MPH) you are at roughly 1800RPM, while going 90MPH you are at 2500RPM where the engine conveniently makes max torque so the fuel efficiency between going those two speeds will literally not change. you can even go up to 100MPH and still get reasonable fuel economy with 6 cylinder cars like this.
this brings me on to the 6 speed skyactiv transmission most of us have. it's a well geared unit, but sixth gear is way too long for highway use until you are going a certain speed. this paired with the fact that its always upshifting to top gear to save fuel it makes the car just feel sluggish to get up to speed, so i've been using the manual mode lately and i've noticed that you're honestly better off keeping the car in fifth gear until you get past 70MPH, because this will keep the RPM's closer to max torque which is at 3250RPM. the closer you keep RPM's to where the engine is producing all it's torque, (2700-3000 is optimal) the less stress you will put on the motor which this allows the engine to rev easily and smoothly at an RPM it is happy at. this is why i strongly prefer having a manual transmission with these cars (although you can't even get the manual with the 2.5L in the CX-5, correct?) because 4,5 and 6th in the manual unit are geared shorter which would definitely feel better at higher speeds with this 4 cylinder engine.
You do know your 6 is geared differently, yes? And at 65 I will bet you all my $ that 6th will be easily more efficient than 5th- in my CX-5..all 200 bucks
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6:
First Gear Ratio1) : 3.70
Second Gear Ratio1) : 1.95
Third Gear Ratio1) : 1.30
Fourth Gear Ratio1) : 1.03
Fifth Gear Ratio1) : 0.84
Sixth Gear Ratio1) : 0.68
Reverse Ratio1) : 3.72
Final Drive Axle Ratio1) : 4.11
CX-5:
First Gear Ratio1) : 3.55
Second Gear Ratio1) : 2.02
Third Gear Ratio1) : 1.45
Fourth Gear Ratio1) : 1.00
Fifth Gear Ratio1) : 0.71
Sixth Gear Ratio1) : 0.60
Reverse Ratio1) : 3.89
Final Drive Axle Ratio1) : 4.62- gen1s, 4.33 for 17+
First Gear Ratio
1) : 3.70Second Gear Ratio
1) : 1.95Third Gear Ratio
1) : 1.30Fourth Gear Ratio
1) : 1.03Fifth Gear Ratio
1) : 0.84Sixth Gear Ratio
1) : 0.68Reverse Ratio
1) : 3.72Final Drive Axle Ratio
1) : 4.11CX-5:
First Gear Ratio
1) : 3.55Second Gear Ratio
1) : 2.02Third Gear Ratio
1) : 1.45Fourth Gear Ratio
1) : 1.00Fifth Gear Ratio
1) : 0.71Sixth Gear Ratio
1) : 0.60Reverse Ratio
1) : 3.89Final Drive Axle Ratio
1) : 4.62- gen1s, 4.33 for 17+
- :
- State of Jefferson
- :
- 2017 CX-5 GT AWD+
You do know your 6 is geared differently, yes? And at 65 I will bet you all my $ that 6th will be easily more efficient than 5th- in my CX-5..all 200 bucks
I'll throw in my ten bux for some of that action!
Final update..avg speed was 60 just 1 under yesterday's but i had to claw back more on today's return trip as Greenwich was more clogged today....drumroll....w a i t f o r i t..
29.2 vs. 28.5 using cc
Your right foot results my vary but mine for this challenge on my terrain is the winner(friday)(dance)
SS8 en colster(cheers)
29.2 vs. 28.5 using cc
Your right foot results my vary but mine for this challenge on my terrain is the winner(friday)(dance)
SS8 en colster(cheers)
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GJ-Molestor
Banned
- :
- 2011 BMW 528i, 2015 Mazda 6, 1995 Nissan Maxima Manual
You do know your 6 is geared differently, yes? And at 65 I will bet you all my $ that 6th will be easily more efficient than 5th- in my CX-5..all 200 bucks
Of course. And my 528i is an 8 speed too. The final drive ratio is completely different, the gears are spaced differently, etc
But if youre trying to accelerate to a speed faster than 65, you want to use fifth. Sixth gear should really only be used for coasting.
