Honda, Nissan and Mitsubishi end talks

Guy54435 · 2025-02-13T12:10:32+00:00

Japanese automakers Honda, Nissan and Mitsubishi end talks on integrating their businesses https://apnews.com/article/honda-nissan-mitsubishi-collaboration-talks-1458c12ac3c052c3b1261e09f31bfea3

real_aurgathor

Splitpair No they are a defective design and no amount of fluid changes will solve that, nor outside of racing should frequent fluid changes be required.

There are vehicles with sealed ATs where a vehicle maker advertises a lifetime fill, but the manufacturer of the transmission (also available in other cars) recommends a 50k - 60k interval for changing.

real_aurgathor

Splitpair Fluid changes are not going to help when the seals and belt are getting baked and beginning to leak or slip,

Regardless of the sate of the tranny, a clean fluid should still be better than some burnt or contaminated fluid, in spite of various claims to the contrary.

Splitpair furthermore 90% of all transmission heating is from the torque convertor.

Maybe you should learn a few things about CVTs before dispensing your wisdom..

For one, that is false for many CVTs since they often don't have a torque converter that is based on fluid coupling -- they often use wet clutches instead. But even with fluid coupling, they'll lock up very quickly, so they are locked during most of the range.

In any case, they have a belt between 2 sets of conical pulleys, and there's some of friction there all the time.

Here are two relevant videos to see what's inside a Nissan CVT:
https://www.youtube.com/watch?v=T7Hhxrk9D3I
https://www.youtube.com/watch?v=_64zEsMdQ9A

I would never even try to do anything internal to a traditional AT aside from filter and oil change, but the CVT looks surprisingly simple.

LiteMeUp

Splitpair

the author doesn’t even realize all modern brake systems have dual master cylinders.

I prefer the term “tandem” since both primary and secondary pistons are in the same bore. “dual” makes it sound like two separate single-piston masters mounted side-by-side with a balance bar.

Really then why does the Master Cylinder Reservoir not collapse as the pads wear down? Clue the lid has a air breather in it to let air in.

Did you forgot about the rubber diaphragm that’s part of the cap? Fluid on one side, air on the other. The diaphragm “unfolds” like an accordian as the fluid level drops, preventing “fresh” outside air and its moisture from contacting the fluid. Only the initial bit of air that’s trapped when the cap is first installed is retained.

grand_total

real_aurgathor There are still a number of failures that can lead to “pedal to the floor”.

You are correct I once had a car which did this to me twice. The first time I was able to come to a stop quickly enough by changing down gears (manual) and emergency brake. The second time was on a very steep hill in an urban area and I was able to use a sand trap placed there for trucks and buses, but which worked well for my car too. You can’t pump a brake pedal that is flat on the floor.

real_aurgathor

grand_total You can’t pump a brake pedal that is flat on the floor.

Well, you can, as long as it returns to the normal position, and not just stays flat on the floor. I think there is usually a return spring in there somewhere, so that will pull it up, no matter what.

Whether pumping will work or not is a whole different ballgame, and depends on what failed. Obviously, even if pumping works, you do not want to drive more than what’s absolutely necessary (i.e. to get home or get to a safe place to stop); and if pumping doesn’t work, you just need to stop somehow before getting into an accident.

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