Comments by "Mike Chiodetti" (@mikechiodetti4482) on "Engineering Explained" channel.

  1. I'm glad you explained this. I didn't know the difference between synthetic and conventional, now I know! THANK YOU!
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  2. Thank you for this info. It makes sense to have these differences in oil. As we all know, horsepower costs money, and if you spend $100 and get 1 extra hp, your one up on the competition!
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  3. I had heard that Ethanol ran cooler in the combustion chamber, but it wasn't until Jason explained the cooling effect plus the higher compression, higher boost and more timing that it all clicked and now I understand it. THANK YOU!
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  4. Thank you for that info.
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  5. Thankyou for the info. How often did you wash the car especially the undercarriage to remove the snow/salt/sand to prevent the car from turning into a 5 year vehicle with undercarriage, frame and other panels, wheels, brakes, and steering components being massively corroded? I agree about charging at the end of your driving day instead of an early morning, non cooperative cold battery, going through a very cold charge. That's hard on a battery. While I like to drive fast, you probably would have had a better range if you kept the speed at 65 or 70 in the Summer and DEFINITELY slower on those snow and ice covered roads! In the winter on slick roads, speed is not of the essence! Also, trusting and testing the vehicle's safety equipment is not something you'd want to do, for your sake, the people around you, and you don't want to use up the cat's nine lives!
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  6. So Tesla can get over 200 miles, maybe 300. I look at how long does it take to recharge the battery vs how long it takes to fill the tank of my 2020 RAV4 or my 06 Nissan Frontier. Tesla claims a low amount of time. Ok, but as an auto technician knows, batteries do NOT like to be charged quickly! Overnight...... yes. 2 to 4 hours depending on size.....no! Range data's fine, just keep the overall as part of the equation because TIME is essential.
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  7. I was laughing when I saw "who cares!" Actually, I do look at total distance vs quantity used when figuring fuel economy. THEN look at MPG. THEN look at cost for total fuel used. Simple. My 2020 RAV4 has one of those "instant MPG" readouts in the dash. It's helpful to keep the right foot outa the loud pedal! LOL!
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  8. Thank you for explaining all this. Power, efficiency and low emissions. Looks and sounds great!
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  9. Good review. This vehicle was well thought out. Time will tell how much the well thought out part of it is changed and how long the powertrain will last. There are those that abuse everything. You can't have everything in a vehicle, and gas mileage is one of those things. You want gas mileage, buy an economy vehicle! Thank you for this video.
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  10. "Thanks for the memories." And the updates! Congrats on 10 years and keep on going!
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  11. Interesting concept! While this may work out great in a gas engine, how will this work with diesel? or CNG?
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  12. I agree! That intake manifold is a model of great engineering! While Ford has the Intake Manifold Runner Control (IMRC) in it's 5.4L 3 valve V8's, the power produced in that system adds more power when it kicks in. That engine definitely is NOT a 9000 RPM engine, but has its power gains under 3000 RPM'S. Nice description of "How It Works!" I hope the Porsche engine stays together and lives longer than other Euro models!
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  13. Ya, I like buttons and knobs, not touchscreens! Amazing what can be done to glass to eliminate glare and be able to bend it.
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  14. Nice concept, looks good on paper. My Toyota RAV4 goes further on a tankful. I don't need all the "upscale" features on this vehicle. Most of my driving is around town these days and I don't have to "top off" the "power source" every time I use it. Even my old 06 Nissan Frontier 4.0L V6, 6 speed manual, 4WD goes further on gas than this 80,000 dollar vehicle.
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  15. Twin turbo, supercharger, twin turbo and supercharger, hybrid & twin turbo & supercharger. Am I glad I have none of the above!
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  16. I actually understood most of this minus all the math formulas. But the concept of a suction holding the vehicle down makes a lot of sense as long as no turbulence gets under the car. I'm sure that's already been figured out both in theory and in practice. Your also right in saying it wouldn't work with an every day production street vehicle and that vehicle just doesn't need that system......for now. Good video sir. Makes you think. And being non racing knowledgeable, I did not know about this system being used on a racing vehicle or even when it was incorporated into racing vehicles.
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  17. Good Information......And a good time making this video. Can't beat that! Thanks for this video.
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  18. Great car! What track were you running this beautiful machine?
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  19. Great video. "Volkswagen does it....again!" I don't think your being picky. I do believe VW will fix the "glitches" in their system. They're new at this, so it'll take time. I like the rear wheel drive, but 4600 pounds? VW needs to put that vehicle on a diet! The range will certainly increase. Question. How is charging done when its raining or snowing? What special precautions are needed? I've watched Professor John Kelly talk about the Chevy Bolt. What special maintenance is required with the VW ID.4? The Bolt has some special maintenance when that vehicle reaches 100K. ALSO, there is one special requirement that may be necessary for the salt belt driven vehicles. That is washing the under carriage of the Bolt, what looks like, bumper to bumper. He didn't mention any special soap. What is VW saying about this maintenance requirement? Finally, with EV's in general, how much power loss does the EV battery lose if it sits in a garage or outside in a driveway for a few days to a week?
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  20. Expensive and complex!
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  21. Based on what I'm seeing here, this looks like a great off road vehicle due to the low RPM high torque which is able to put that power down to all 4 wheels even with wheel spin. Should be great with a good set of off road tires. On road looks to be a smooth drive. Depending on the suspension, both on and off road could be great or the vehicle's suspension might be giving up some control and ride in the off road driving making the on road driving much better. Air bags may help. Also, what's the battery range on road? Off road will be a LARGE variable. What's the vehicle's cost? That will determine how much off roading will be done! What kind of dealer support is in place for the vehicle? How strong are the vehicle drive train components? Do I need a trailer with battery packs and a generator to make this vehicle go over 250 road miles?
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  22. If you had added in the octane rating of the biofuel that may shed light of how much better or worse it is over gasoline. Like you said though, who cares! Or in the words of a certain politician....."what difference does it make?"
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  23. Maybe GM did the towing on flat road. What happens on hills? Maybe it started at 65-70, then drove at 50 or 55. Does the GM have a multispeed transmission with one gear for towing? To many unknowns here! Thanks for your info.
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  24. This was definitely a very detailed look at the range, time and power usage. I'd like to see the same for short trip driving, especially within 25 miles, with lots of traffic lights, stop signs, etc.
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  25. I have a 2020 RAV4 with the A25A FKS engine currently running Mobil 1 0W-16 oil. It doesn't have a lot of miles on it and so far the oil comes out minus any shiny metal. I change the oil every 3000 miles or every 6 months which ever comes first. I've done that to all the vehicles we've had here with no internal engine problems. 5W-30 for the 2 older 06 vehicles and the same routine.
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  26. I have noticed my 2020 RAV4 has "some" aggressive feel to it, and yes, I know it's a mini SUV with skinny tires for economy and an 8 speed automatic transmission, NOT a Tremec 6 speed manual performance transmission.
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  27. Thankyou for the detailed explanation.
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  28. Perhaps if it made sounds like Chrysler's turbine car reving up, that would be better. And once you passed a large object, you'd get the whoosh sound similar to the Indy turbine car that almost won the Indy 500 years ago!
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  29. Math can give a theory and it has been found to be accurate, that is, on the money! However, as the day progresses, theory tends to go out the window. Which leads to overbuild, which will hopefully settle in to allow for theory and actual operation to be the same thereby making everyone happy. If you build something to last 10 years and only need it for 7 or 8 years, any time beyond that 7 to 8 years is money in the bank, or chocolate icing on chocolate cake! (Yes I like that)
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  30. I have a 6 speed manual trans in a 4.0 Liter Nissan Frontier. I have "skipped" gears MANY TIMES since I bought it in 2006 and with over 100,000 miles, it still has the original "non-slipping" clutch! Downshifting is a learning curve. At first, go with a closer gear you are now in, the vehicle will let you know if its not enough. Making a turn, if I'm below a certain speed, I know I can put the trans in neutral as I'm slowing down, let out the clutch, rev the engine up over a certain RPM, such as just over or around 2500, push in the clutch, gear down and let out the clutch. If I've done it right, the engine speed will match vehicle speed for that gear. If I've reved to much, the engine speed will be to high for the vehicle's speed, and there will be a slight "kick" forward. The clutch "disc" is the part that engages the transmission input shaft and the clutch pressure plate is mounted to the engine flywheel. The disc has "several" springs in it to cushion the transfer from the engine to the transmission to eliminate that "JOLT" that can happen with a person new to a clutch. In all my vehicles that had manual transmissions, I've never damaged or destroyed a clutch. Have respect for the vehicle and its equipment, so it will take you where you want to go!
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  31. One thing you touched on was the efficiency gauge that gives you immediate MPG numbers. Mine is between the tach and the speedo. 40 is at the top, what you aim for, and even on a freeway at 70 MPH, using that gauge as a guide to where the throttle (or cruise control) application keeps the vehicle at a steady speed and yes do climb as I've seen them go over 40 MPG. Doing that really helps the "average" number for MPG at the gas pump. Course it's a (light vehicle) 2020 RAV4, on a fairly flat road, with the wind at your back. Driving back with the wind in front of you, MPG does drop some. It only takes one variable to change that.
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  32. Time will tell.
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  33. So diesel and gasoline are the best engines.
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  34. It's $3.199 a gallon at the local Chevron in Palmdale Ca. Thank you governor nuisance and the one party govt in Sacramento for ALL THE TAXES ON OUR GASOLINE! Oh By The Way, (yes this is an Oh By The Way) the gas is also OXYGENATED, which mean less gasoline and more 02 that your paying for per gallon! And.......my older gasoline engined equipment needs to be run on partial choke to richen up the mixture so they idle smoothly and don't stall! Sorry for the rant! I will say this. If I put a full container of gas in my shed, two months later it's still there. If I put a fully charged battery in my shed, two months later it will be less than 80% charged, which means now I'm taking from the grid to recharge the battery. Even in Southern Cal in the winter time it's cool/cold with temp nearing single digit degrees FARENHEIT! That battery has a lower range than my 1/2 to 3/4 tank of oxygenated gas powered engine can provide! I'll stay with gas!
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  35. They do work. Mine is like the $25.00 unit you had, but it's NOT smog certified does not have the "exemption" certificate. It would be great to buy one that's smog certified!
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  36. No thanks. Don't like overpriced over engineered low volume vehicles.
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  37. Thank you for this info.
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  38. A fun to drive vehicle!
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  39. Fantastic design. I can only imagine the amount of time (and money) it took to get each detail along the way just right. "Last the life of the engine" could be code for a short lifetime maybe less than 100,000 miles, OR with the right materials and lubrication greater than 300k. Only time and abuse will tell.
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  40. Thanks for your explanation of this vehicle. BTW what's the warranty for this trans and vehicle?
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  41. Interesting, but looks like a problem in the making!
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  42. Very nice car driving along the coast. At what speed can you use 8th gear? I would be interested to see what this car would be like in about 10 years. What kind of longevity would that engine have for it's life? Thanks for this video.
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