Found another way to save on gas.
Well since I pumped up my tires I have been finding myself going faster than other drivers and that caused me to use the #2 lane which is the second lane from the left. Sometimes even the #1 lane. Since I pumped up the tires I'm now thinking my speedo is wrong. Since my tires are different now and are pumped up that means I'm actually going faster than what my speed says. Since I always drive 65mph on the freeway in reality i'm going 66-67mph. Not only do I gain a couple mpg by pumping up my tires but if I reduce the speed to 63mph I will be even saving more fuel because my sweet spot is 55mph. Not only that but i'll really be going 65mph. No point in speeding if there are too many benifits of going the speed limit.
Here play around with this... https://www.miata.net/garage/tirecalc.html |
So have you actually
So have you actually measured the change in your tire diameter and its effect on your speedometer since increasing the air pressure, or is this pure speculation and guesswork?
What if you go the speed limit on the highway while nearly all other cars are exceeding it by 15 MPH, and because of some careless driver who's speeding, an accident occurs because she tries to make a lane change to avoid rear-ending you and side-swipes a minivan. How much gas is wasted cleaning up the mess, fixing the vehicles, transporting the injured to a hospital, investigating the accident, paying the insurance claims, etc.? How often do such accidents occur? If it costs you an additional $2.00 in gas for your trip to drive at roughly the same speed as almost everyone else who's speeding, was it worth the $2.00 as insurance against an accident? Most police officers on traffic duty will not issue you a ticket if you're speeding but keeping up with traffic around you, as long as your speed isn't too ridiculously high. |
So, you're saying that we
So, you're saying that we should speed to keep up with everyone else then? If you wanna play the safety game you can get all sorts of data about reaction times and safety as you go from 65 to 80 mph, not to mention the fact that most cops will not let you off speeding 15 mph unless they also enjoy spending their time cleaning up after crashes.
EDIT: https://safety.fhwa.dot.gov/speed_manage/docs/speeding_facts.pdf Speeding causes 1/3rd of all crashes? Speeding costs 27.7 billion dollars per year? Speeding causes almost as many fatalities as drunk drunk? Most speeding fatalities happen on the highway? Huh? Is it just me? |
Re: So, you're saying that we
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His initial question however is valid. Did Compaq888 take measurements and determine the actual increase of his tires and make a calculation (or even a regression line) determining how much his speedometer was off, or was his change in speed all based on gut feeling? |
80 mph is the flow of
80 mph is the flow of traffic in my area too, but people still get pulled over left and right.
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Re: So have you actually
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I'm going the speed limit for several reasons and they are: *to save on gas *Avoid tickets *the slower you go the faster you can stop. On my car if I were to slam on brakes at any speed it locks up. So if I'm going like the rest of the ape **** on the freeway at 80-85mph my chances of getting into a wreck is higher than going 65mph. My brakes lock up because I don't have ABS and the dealer says it's normal for my car. And most police officers will issue you a ticket. When i got into a wreck with my last car I was going 8-10mph over the speed limit and the wreck wasn't even my fault. The cops started hassling me that I was speeding and the whole thing was my fault. Some witnesses walked up and said that somebody else was at fault and ran away. So they forgot all about the my fault thing. Next is the tire diameter thing. I'm not speculating nothing. I checked it by measuring everything. I'm not like everybody else. I don't speed just so I can make it somewhere faster. If everybody is going to jump off the bridge I'm not going to join them. |
Compaq888, so, since you
Compaq888, so, since you checked it by measuring everything, what was the diameter change in the tire that you measured before and after overinflating the tires? What did you use to take the measurement? I'm asking because you're citing a 3.1% change in speed and that seems excessive to me for a few more PSI in the tires. Without the numbers, though, it's purely speculation on my part. Please educate me, as I am ignorant of the possibilities here.
As far as the speeding part, I never suggsted anyone should exceed the speed limit. I posed a hypothetical situation and asked a question about whether it's worth it to speed to keep up with the flow of traffic instead of impeding it and potentially causing an accident. I never said it would be more fuel-efficient overall. I was asking a series of questions and so far nobody has offered any answers but SVOBoy is trying to imply that I'm crazy for making a statement that I never made. It probably sounds like I'm leaning in one direction or the other, so shame on me for not wordsmithing my post more effectively. So there are no answers so far. The question stands: Is less fuel consumed overall if you speed to keep up with traffic instead of driving the speed limit when everyone around you is speeding? Need someone with statistics on that one. |
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the question of go with the
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