Month of December 2019 (Nat’l avg $2.591)

Discussion in 'The Daily Grind' started by Gord, Dec 2, 2019.

  1. litesong

    litesong litesong

    Always had good results with new tires from their very beginnings. I had some used Yokohama GeoLanders that wore well, even down to their end of tread life. If it wasn't for the approaching winter, I'd recommend higher tire pressures. Do you get much snow?
     
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  2. BillLin

    BillLin PV solar, geothermal HVAC, hybrids and electrics

    I think Andrew's pretty dialed in on what's what. Just pondering the issue of new tires being more draggy, all else being equal, I might expect some energy loss from the deeper tread being able to wiggle more with no benefit. How's that for a hypothesis pulled out of thin air? :D
     
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  3. litesong

    litesong litesong

    Often heard the wiggly deep tread theory. Using accurate correction for extra miles of the "taller" new tread tho, often shows INCREASED MPG from new tires. I love "taller" new tread tires, which matches with my experience going to higher aspect ratio tires (giving taller tires) that give lower rpms & extra MPG.

    New tires have much shorter hard braking stopping distances than worn tires, especially in the wet. Most certainly, that is a very LARGE benefit.
     
    Last edited: Dec 6, 2019
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  4. BillLin

    BillLin PV solar, geothermal HVAC, hybrids and electrics

    I agree with the idea that same size tires are taller when new compared to old, so actual distance will read low without calibration so lower indicated MPG without accounting for the distance part of the equation. However, my squiggly thoughts relate to the 'feel' of draggy tires and probably very real, lesser coasting distances.

    So you run taller tires than stock with the same size rim? (i.e. not doing a proper -1 or -2 wheel/tire combo change) Do you have the odometer and speedometer recalibrated? If not, your odometer and speedometer accuracy will be off. The former might be an issue on sale of your vehicle. Do you affirm that the odometer reading is correct when signing over the car title to the buyer? Or do you just drive the car into the ground and junk the car?

    Side benefit of your approach of taller tires is of course lower engine RPM at any given speed...
     
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  5. BillLin

    BillLin PV solar, geothermal HVAC, hybrids and electrics

    Oh yeah, related to your "higher aspect ratio tires (giving taller tires) ". Taller tires will require greater stopping distances. 4-wheelers (off-road) who cram the tallest tire they can under the wheel arches without gearing and brake changes can run into trouble with greater stopping distances. (just an extreme example; I'm sure your tire diameter increase is not THAT significant)
     
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  6. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    The tires are Yokohama Avid Ascend GT. They are a "touring" tire compared to my previous Goodyear FuelMax's.

    Good thoughts all around. I have in the past experienced deeper tread being more squirmy with new tires, but they settled down quickly. That is NOT happening in this case, these seem to be good tires on that front.

    I have the pressure at 50 psi so I'm good there. I'm in Texas so snow is an only-once-a-year item.

    We'll see. If there is a break-in period it'll take some time because I only drive 5-10 miles. I have seen break-in on previous tires over a few hundred miles.
     
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  7. litesong

    litesong litesong

    I have increased tire diameters by 8+% & 7+% on two cars. Also, I have increased tread widths by 1+ inches (which means car track widths are similarly increased), which make my cars corner much nicer. No data on braking distances, but I feel secure on my big boots. If anything, I have discovered that new car dealers selling small tires on their least expensive cars & models, have decreased safety for their less rich customers.
     
    Last edited: Dec 7, 2019
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  8. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    You , sir , are entitled to your own opinion.
     
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  9. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    Today , 25 deg F in Wood Dale IL and 26 in Toronto , Ontario.
    Stayed with friend in Lombard last night , so no highway today.
    16.3 miles , 56.0 MPG.
    Tank is at 550.9 miles , 19 remaining , 59.0 MPG.
    My gas station is about 27 miles from here.
    Last pip on fuel gauge started flashing at 543 miles( 29 remaining)
     
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  10. litesong

    litesong litesong

    Nah, ain't opinion. For decades, I loved small wheels & tires to go along with small cars, manual trannies & high MPG. But, my use of used taller & wider tires, have shown me you can still have high MPG, while retaining better handling & braking. At the very least, I've gotten rid of squealing tires. At the most, I've gotten rid of tires that slide too easily & tires that enjoy ditches too much.
    Did I say, used big tires outperform new small tires? Yes I said, used big tires outperform new small tires
     
    Last edited: Dec 8, 2019
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  11. Gord

    Gord Super Moderator Staff Member

    Thursday night, 1UP, detour #2 followed by a longer detour on second half, 49°F, breezy , cross/tailwind SW16, very busy but worked it hard:
    43.2 / 20.6
    Friday morning 1UP, motorway looked busy so went detour #2 reversed, warmer 53°F, cross/headwind SSW9:
    50.6 / 19.8 - first calculated commute over 50mpg for ages!
    Tank up 0.4 at 51.5 (FCD 54.2) / 373.9 / Range 225 . Guess gauge F____|««««E . UG up 0.6 at 54.0 / DTE 234
     
  12. BillLin

    BillLin PV solar, geothermal HVAC, hybrids and electrics

    Way to go, Gord!
     
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  13. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    Filled up Saturday afternoon.577.4 miles , fcd = 61.8 x .956 = 59.1 MPG
    577.4 miles / 9.834 gal = 58.7 MPG.

    Today , 46 deg F in Naperville and Wood Dale , 44 in Toronto.
    35.1 miles , 61.8 MPG.
    Tank is at 65.9 miles , 60.6 MPG.
     
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  14. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    And I rode the Trek 12 miles Sunday morning. My hands were cold , my gloves are not the best.
    A lot of folks were on the trails , even though it was less than 40 F.
     
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  15. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    Warmer 60F and humid this morning. 51.8 / 11.4 mpg.

    Tank is at 49.9 / 83 mi.
     
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  16. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    Today , 19 deg F in Naperville , 18 in Wood Dale , and 40 ?! in Toronto.
    35.1 miles , 57.6 MPG.
    Tank is at 136.1 miles , 478 remaining , 58.1 MPG.
    Tomorrow will be bad for fuel economy. I need to pick up my girlfriend's daughter and
    her husband in Naperville and take them to O'Hare. I volunteered to do this because it's easier
    for me than anyone else, since I work right next to O'Hare in Elk Grove Village.
    And yes, we do have elk.
     
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  17. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    Elk?!

    It's 40F and rainy here.
    43.2 mpg home
    45.9 this morning
     
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  18. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    They are in a large pen inside the forest preserve. Large , like 30 acres.
    Why ? No one knows.
    Today , 17 deg F in Naperville , 14 in Wood Dale , and 23 in tropical Toronto.
    As expected , fuel economy was poor. 3 humans , luggage , wind , speed.
    About 50 MPG for about 40 miles. And tolls , of course. My girlfriend's daughter and her husband
    are going to Mexico. I'm not sure how they are going to pull it off, but they plan to rent
    a house there for six months and live there every winter.
     
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  19. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    An elk is just a horse with a fancy hat.
     
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  20. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    Actual radio exchange from Formula 1 back in 2001.

    Engineer: Um, we've seen a deer on the circuit so come in cautiously please.
    Driver: A deer?
    Engineer: Yeah a deer, it's like a horse with horns.
    Driver: Oh deer, hahahaha.
     
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