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Joined 2 months ago
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Cake day: July 15th, 2024

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  • He was forced to move from California back to Minnesota cause he couldn’t afford life on the west coast anymore.
    Recently he stated in an interview that it’s getting tight in Michigan, too.
    But he still has a hobby of restoring old cars from the 60’s so he’s not starving.
    I’m donating a monthly amount to him (roughly the equivalent of what I’d pay for an M365 subscription), cause IMO Slackware needs to survive.
    Unfortunately, he’d need about 200 regular donaters like that to live off, and Slackware’s user base probably isn’t large enough for that anymore.





  • Every engine is the most efficient at max torque, which for a typical car’s gasoline engine would be around 4500 rpm.
    But that “efficiency” means fuel burnt per unit of power. At max torque, the engine makes much more power than you need for normal driving, burning more fuel than necessary.
    As a rule of thumb, you get the best real-world fuel economy at full throttle just above the low rpm limit where the engine would run “jerky”.
    That’s at 1000-1500rpm for a passenger car’s gasoline engine.
    At that rev range, you may only get 40 horsepower out of an engine rated for 100 at max torque, but that’s enough. You only need around 10 to maintain your speed against wind resistance, and you don’t actually lose any time accelerating slowly cause you’re gonna be at the next red light soon, anyway.

    For reference, when I’m accelerating from a stop to highway speeds, I’ll shift to 2nd gear as soon as I’ve moved one car length, 3rd at 30km/h, 4th at 40, 5th at 50, flooring the throttle the entire time I’m not shifting. Then I’ll stay in 5th unless I’m forced to brake below ~45 again. Up or down a hill I’ll go one gear lower.
    In my Diesel van, I regularly drive 40 in 5th gear.

    I can’t make you take my word for it, but this is what I learned in a work-sponsored course for fuel efficient driving, and it got me much better fuel economy than the manufacturer’s claim for any car I drove in the past 20 years.


  • The company car I get to use has an automatic transmission that drives me mad.
    Its shift points are always right above the speeds I usually drive at.
    It shifts into third at 40 km/h which is too fast for a speed limit of 30.
    It shifts into fourth at 60 which is too fast for a speed limit of 50.
    And it shifts into fifth at 80 which is too fast for a speed limit of 70.

    So you’re constantly driving with too high rpm’s, burning more fuel and making more noise than you’d have to.
    It has a “manual mode” where you can shift by moving the stick up or down. But it doesn’t actually do anything. If you shift at a different point than the automatic would, you just get a “shift denied” message on the dash, even though the rpm’s wouldn’t even get close to being too low.
    And when you push the gas pedal just a bit more than half, it shifts down and the engine roars, but it doesn’t actually achieve much cause the car doesn’t have much power.

    Internal combustion engines are most fuel-efficient at low rpm’s (<1500) and full throttle, and that’s impossible to do with this transmission. So it only gets 34mpg (7l/100km), and it’s a Diesel hatchback. My old manual car also had a 34mpg rating, but the way I drive I could get 47 (5l/100km), and it had a gasoline engine.


  • On the contrary, it makes no sense to put automatic transmissions into sports cars.
    On public roads, you’re not gonna be able to drive them as fast as they can go anyway.
    An automatic transmission may offer better performance, but you have 5x as much of that as you can use already.
    What a manual transmission offers is the feeling of being in full control.
    It’s simply more fun and engaging to drive.

    But apparently, cars aren’t made to offer the best experience possible anymore.
    Auto transmissions are now cheaper and anyone can drive them, so the potential market is bigger. And that’s what matters, even up to the Lamborghini price bracket.