Alternate Title, “Oregon Schools Are Not Being Attacked By Clowns” Thanks Patrick.
Thank you to Tony Schaefer for the timeline we did at the beginning of the show.
Thank you for watching or listening.
Thank you for 200 episodes.
Thank you to all the people who have participated on the panel or been a guest.
This week’s news…
A lot of people are seemingly (or actually) addicted to Facebook, Twitter, SnapChat, InstaGram, and/or whatever new social media app / website just went online while I was writing this sentence. So much time is spent (some would say ‘wasted’) electronically interacting with people, the whole concept of social media has gotten a really bad reputation. However, it can be argued that there are beneficial facets to social media interactions and the ability to instantly engage with multiple people regardless of time and distance.
This article will discuss ways in which you can use social media and internet communities to improve your fuel economy. When possible, links are provided to online sources; this is not a promotion of one site over another. If one of your favorite online resources is missing, let us know so we can include it.
Join a Hybrid / Car / Hypermiling Community
Have you ever heard of those car clubs or motorcycle clubs who just get together once and a while to talk about their cars or motorcycles. All they do is get together, hang out, talk car, and perhaps drive around. Sounds really silly, doesn’t it? Well, congratulations: now you can do all those things online!!
Thanks to Google, online car forums are really easy to find. In the forums, you can find information about driving techniques, how to perform regular (or not-so-regular) maintenance, or speculation about upcoming models and features. Some forums are broad in their scope while others are relatively granular. But they all have one thing in common: they are all sustained by a group of individuals with mostly the same interests and concerns as you. Because of that, it is usually pretty easy to be welcomed into the community and easy to form friendships with other forum members.
Here is a list of some online forums and communities. This is clearly just a partial list:
Send us links for your favorite online community or any other community you know of.
Create / Join a Fuel Consumption Challenge
A few years ago, a couple coworkers were curious about this whole hypermiling thing. The best way to get them personally invested was to set up a competition between them. Using a relatively simple spreadsheet, we used their car’s EPA numbers to gauge how their MPG improved by implementing some basic hypermiling techniques. The entire thing was based on the honor system so there’s really no way to vouch for its accuracy, but according to their self-reporting, each were able to achieve more than 10% above their EPA ratings. It’s hard to say whether they would have achieved these results had they not been competing.
When you know your results are going to be seen by others, you will try harder. This is why a little friendly competition might give you the push to kick your efforts up a notch or two. It’s not only competition that provides the incentive to improve; sometimes simply knowing others are watching is enough.
If you join one of the online communities mentioned above, see if they have a place where people can post their fuel economy averages. Many do. If you are using a spreadsheet to monitor your mileage, consider making it available online via Google Docs, DropBox, or any other online storage service. If that’s not possible, consider creating an account at Fuelly where you can enter your tank-by-tank averages. Then you can distribute the hyperlink to your Fuelly account.
Participate in Ride Sharing Programs
While this might not improve your individual fuel economy, it will reduce your overall fuel consumption.
Check around to see if there are any local web resources where neighbors can set up a ride-sharing program. You know, a good old-fashioned carpool. For example, check out NextDoor.com to find neighbors and start a chat. Find out if anyone works near you. The best-case scenario would be if someone lives and works near you.
If you like your coworkers, at least a few of them, find out if they live near you or between you and your job. Some days, you can pick them up; other days you can park at their place and they drive. Either way, that leg of the trip is done with one car rather than two. Word to the wise: you have to really like that person because if it gets to the point that you can no longer stand riding them or if one of you gets a promotion and now it’s awkward, you will need to cancel the carpool. Of course, you’ll still see that person at work every day.
Waze is a free, real-time traffic service owned by Google (or Alphabet, whatever). It is primarily used via the phone app. As people drive, Waze uses geotracking to monitor their speed to provide everyone else real-time traffic information. Drivers can also manually provide information to the system such as backed-up traffic, a traffic accident, car stopped on the road, or even where the police are hiding today.
Once the user enters their destination, Waze evaluates all its information to determine the fastest and most trouble-free route. Unfortunately, Waze cannot apply hypermiling logic to calculate the most fuel-efficient route. But by directing you around stopped traffic, the amount of time you spend idling is greatly reduced. This will save gasoline and/or battery charge.
One note about Waze: you are providing your real-time location to the Waze application. As the adage goes: if the product is free then you are the product. If this makes you a little uneasy, just skip this suggestion.
Attend Driving Clinics or Seek Help from a Hypermiling Expert
In addition to the first suggestion promoting online communities, you might want to also look into local, real life groups. As a side note, it’s funny how we now have to distinguish things as being in real life (IRL).
These groups are usually formed and populated by like-minded people. Some of the events I’ve attended have been held in parks, parking lots, even car dealerships. In some states, it’s not legal to sell cars on Sunday but it is legal to have the service center open. This means a friendly dealership might welcome a group for a meeting.
At these meetings, technical car reviews might be provided, maintenance information, and tips from other drivers. It’s usually pretty easy to find someone who is achieving really good gas mileage and who is more than willing to talk with you about improving yours. Many of the meetings I’ve attended have include “ride alongs” in which the ‘expert’ hypermiler will ride with the learner, providing advice for improvement. I’ve performed several ride-alongs; trust me: people are happy to do it. Just ask.
Search your local area for car groups. Here are two groups on MeetUp.com that might help get you started:
In this day and age, it should be easy to find like-minded people which whom you can discuss fuel efficiency. Whether online or in real life, working with others – and maybe even competing – will certainly give you that extra boost to improve your overall mileage.
According to FuelEconomy.gov, under-inflated tires can lower your mileage by 0.3% for every 1 psi drop of all four tires. Other sites put the figure at 0.4%. Even though it doesn’t sound like much, the point of this ongoing series of articles to make clear that all things – when taken together – can account for a significant improvement in overall efficiency.
When to take the Measurement
Hot air expands.
That’s it. Now you understand how the temperature of the tire will affect the temperature of the air and therefore the measurement of pressure. Always measure the tire pressure before driving the car. Taking the measurement after a long drive – especially at high speeds – will return a deceptively high reading.
Ideally, you should measure your tire pressure every month. First of the month? Check your pressure.
Winter versus Summer
In addition to hot air expanding, cold air constricts. Most sources put the anticipated psi drop at 1psi for every 10 degrees of temperature drop. In some locations, the difference between the hottest Summer day and the coldest Winter morning could be more than 100 degrees Fahrenheit. For tires, that’s a potential 10psi swing.
When Autumn comes, don’t be surprised if the tires start reading low. It will be necessary to add air to maintain pressure. In the Spring, – and this is important – it might be necessary to remove air to keep the tires from becoming inadvertently over-inflated.
Tires are Part of the Suspension System
Before getting into maintaining and manipulating tire pressure, it should be mentioned that the tires are an integral part of the car’s suspension system. Having shock absorbers is great and all, but it’s the pliability of the tires that cushions the car from all the bumps in the road.
Over-inflating your tires will create a rougher and bumpier ride. It does. There is no way around that. If you decide to over-inflate your tires, you must realize that you do so fully understanding the impact it will have on the smoothness of your ride.
At the Very Least: Maintain Recommended Pressure
Every car has a sticker somewhere indicating the recommended tire pressure. Usually, it’s on the driver’s door jamb but some cars have the sticker on the inside of the trunk hatch.
It is important to keep in mind that the tire pressure on the side of the tires might actually differ from the pressure recommendation on the sticker.
The reason for the potential variance is that the tire is manufactured for a wide range of cars. The tire manufacturer does not know the size and weight of the car it will be mounted on. The manufacturer of the car, on the other hand, knows all the variables and calculates their recommendation. This is why you should always refer to the sticker on the car rather than the sidewall number.
If you do nothing else, absolutely maintain the recommendation on the sticker.
The Dangers of Under-Inflated Tires
Most people who have ever ridden a bicycle have ridden on under-inflated tires. Squishy tires make controlling the bicycle very difficult because the rim is sliding from side to side. The same is true on a car except that cars travel much faster and corner much harder. An under-inflated tire could potentially create the situation in which a quick decision cannot be realized with a quick movement.
Do you remember when all those Ford Explorers were losing control and sometimes flipping over? In every case, one of the tires exploded, which make people suspect it was the fault of Firestone. After a bunch of investigating, it was found that in almost every case, the pressure of the remaining tires was low. As a result, it was determined that the exploding tires were cased by under-inflated tires overheating and rupturing resulting in sudden loss of control. Under-inflated tires create additional friction and could possibly become so hot they weaken and rupture.
It has been proven that under-inflated tires are more prone to skidding in the rain, making stopping more difficult. At the very least, braking distance is increased. Worst-case situation: braking distance is farther than the distance to the car in front of you.
Under-inflated tires do not contact the road the way they are supposed to. This affects overall handling and tire wear. Some estimates put the impact of under-inflation as high as 25% faster tire wear.
So there you have it. If you take nothing else away from this article, please check your tire pressure once a month to make sure you are safe.
Exceeding the Recommended Tire Pressure
NOTE: This is a contested concept for the reasons explained below. It is assumed you are a mature and responsible adult capable of making decisions for yourself that affect the operation of your vehicle. If any part of this bothers you, don’t do it. Just because you read about it on the internet doesn’t mean you have to do it.
There are many people on PriusChat.com working to improve their mileage. They employ many techniques and reliably report their results. I mention this because there is substantial anecdotal evidence that increasing your car’s tire pressure can return higher mileage.
The recommended tire pressure for a 2004-2009 Prius is 42psi front and 40psi rear (42/40). The 2psi difference is explained as additional support for the engine in front. Some people increase to 45/43 and report repeatable mileage improvements. Some have gone as high as 50/48 and continued to report even better overall mileage. However, above this pressure, on real significant improvements are realized.
These results – though shunned by many – seem to indicate there is a mileage improvement to over-inflating tires. To a point.
Concerns of Uneven Wear
Many opponents to over-inflating tires use the argument that the tires will develop a bulge and develop a bald stripe along the radial axis. This was true a long time ago. Modern steel-belted radial tires, however, are reinforced in such a way that over-inflating does not bulge the tire.
Concerns of the Tires Exploding
The level to which some drivers over-inflate their tires is only a few psi. Perhaps as high as 10psi. This sounds like a great amount. But the realization that it’s intentionally a fraction of the tire’s potential is not something you will ever see advertised.
I had the pleasure of meeting an actual tire engineer at a car show. I can’t mention his name or which manufacturer he works for. To be honest, it has less to do with confidentiality and more with a horrible memory.
In our discussions, I mentioned that I had inflated my tires above the recommendations and was mildly concerned. He gave a “pa-shaw” sound and rolled his eyes. He then explained that the sidewall tire recommendation is based more on the risk of litigation than the potential of the tire. This gave me a certain level of ease.
As I look over this article, it’s clear that much of it addresses arguments against over-inflating tires. It’s just that this article only addressed potential mileage gains of over-inflating tires the comments section would light up with those very arguments. So they are pre-emptively addressed in an attempt to make it clear that I’m fully aware of those arguments and am not making blanket suggestions without realizing potential consequences.
Make sure to check your tires’ pressure every month. At the very least, maintain the tire pressure recommendations listed on the sticker in your car. If you choose to over-inflate your tires, be aware that you will experience a bumpier ride because the tires are part of the car’s suspension system. Though there are concerns of damaging tires with higher pressure, the evidence simply isn’t there to support them.
Tesla powertrain failure rates
Green Mountain Power first to sell Tesla 7KwH Powerwalls for $6500
A discussion of model years, patience, and the value of keeping a schedule
Fuel cell vehicle goes fast
Safety in the digital age
Ontario charging stations
This week it’s all about the fourth generation Prius and it call comes from Danny Cooper. Paul Guzyk, Tony Schaefer, Patrick Conor and Russell Frost break down the new Prius, a car which Danny just drove. See Prius Chat for the video reviews (link below)
Following the 2016 Prius reveal in Las Vegas, members of the What Drives Us podcast and Toyota’s Prius Experts panel got together for a late night show to talk about what they saw, what they didn’t see, and answer questions from PriusChat.com.
Two minutes news links:
Portland airport installs 42 EV chargers
Tesla industrial batteries to help reduce power costs to Escondido high schools
Sexy Tesla charging robot arm
Tesla says, “we didn’t mean ‘unlimited'”
Where does your energy come from visualizations
my 2M, University of Waterloo students create autonomous vehicle for campus use
This week in the news…
Mea culpa culpa culpa grande with a nice slice of humble pie…maybe
WSJ says Apple’s CarPlay is on the right track
Leaf 2.0 more miles
We’re seeing more and more of the Model X
Fourth generation Prius makes it’s debut on 9/8 and we’ll be there
This week Russell works the topics below with Patrick Connor, Paul Guzyk and Tony Schaefer…
Subaru sport hybrid comes to Japan
Bugatti Chiron will be a hybrid
4th Gen Prius debut
Terrible reporting, stupid people or both?
The LATimes says the Prius is DeadBeforeArrival, more or less