Transmission wear from P&G (pulse and glide)?

[Gasoline Fumes]

I think coasting downhill is illegal in NY too. I doubt I'll ever get arrested for unlawful coasting on a downgrade!

[EcoCivic]

Originally Posted by Gasoline Fumes

I think coasting downhill is illegal in NY too. I doubt I'll ever get arrested for unlawful coasting on a downgrade!

Coasting is illegal here in Tennessee too but I don't see how that law is enforceable I don't understand the logic behind the law anyways.

[Gasoline Fumes]

Originally Posted by EcoCivic

Coasting is illegal here in Tennessee too but I don't see how that law is enforceable I don't understand the logic behind the law anyways.

You could overheat your brakes going down a big hill.

[EcoCivic]

Originally Posted by Gasoline Fumes

You could overheat your brakes going down a big hill.

That's true but you could easily overheat your brakes going down a big hill in high gear too if you ride the brakes. Only an idiot would coast in neutral just to overuse the brakes though.

[redpoint5]

I'd like to meet the 1 person in the world cited for coasting with the clutch in.

Likewise, I'd like to meet the 1 person that became ill from a malfunctioning backflow preventer on a sprinkler system.

Why don't we require a permit and annual training to climb a ladder?

[Gasoline Fumes]

Originally Posted by EcoCivic

Only an idiot

They're everywhere!

[freebeard]

I took a second look at my link at #10, and counted about 18 States that don't have a summary. the first one with no proscription:

Alaska
Alaska Statutes don't have any laws regarding being in neutral.

Originally Posted by Gasoline Fumes

You could overheat your brakes going down a big hill.

With my Notchback, downhill in the mountains, the brakes would overheat the tires.

[Autobahnschleicher]

You guys have some realy weird laws...

[freebeard]

That's the Grand Experiment. Rights proscribed to the Federal level are reserved for the States and people. Then you can see what works and what doesn't. Compare, for instance Texas and Florida vs California. Indiana is offering hiring bonuses to the police officers being defunded in Chicago.

Or, for coasting, Alaska vs maybe 40 other states.

Compare Canada, which restricts travel between Provinces.

US travel restrictions state by state during [you-know-what] ...
https://www.cnn.com › travel › article › us-state-travel-restrictions-covid-19 › index.html
(CNN) — Almost all travel restrictions between US states have been lifted since the spring and early summer of 2021.

[Isaac Zachary]

I think part of the illegal aspect of shifting into neutral has more to do with vehicles from the era before transmissions had synchros than anything else. There was a school bus that infamously lost its brakes and went off the side of a steep mountain pass killing many of the children because the driver had shifted into neutral and couldn't get it back into gear. The same can be said of if you need to accelerate. So even if you don't need any sort of braking for a certain grade, if it's a bear to get back into gear to accelerate you could have a safety problem.

However, I'm not going to recommend braking the law, but I don't see how shifting into neutral with a manual transmission in a modern car that you can shift back into gear in a fraction of a second is going to cause a safety concern, as long as you aren't riding your brakes as a result. If you have a hard time getting it into gear, with or wihtout synchromesh, then it's probably better to just leave it in gear for safety.

As far as transmission wear, there are some modern manual transmissions that do have a lubrication pump that only works if the tranmission is engauged. They are rare, I think mainly on bigger vehicles, but it's something to be sure of before coasting in neutral (or towing your vehicle in neutral).

Double clutching (blipping the throttle before stepping on the clutch and shifting into gear) is definitely a good idea in my opinion. It may wear out your clutch linkage a bit quicker, but helps save the transmission and even the cluch itself. Replacing a cable or clutch cylinder is a lot easier than replacing a clutch and/or flywheel or rebuilding a transmission. I double clutch anytime I'm downshifting, regardless of the vehicle (well, with a few exceptions honestly.)

Although if you're idling down a hill you're still burining fuel. Shutting off the engine would burn zero fuel, but then you can't blip the throttle to get the gears to mesh.

Of course if you need to brake at all you're better off leaving it in gear. If you think you're still burning fuel, you could install some sort of fuel shut off and get even more engine braking. Of course if you need to down shift again you would be able to blip the throttle without turnin the fuel back on again.

In my Super Beetle I had fun shutting off the ignition, which also closes the idle shut off valve. Then I'd turn the ignition back on. The high vacuum of engine braking would keep the idle shut off valve closed. But once I got to the bottom, all I had to do was touch the throttle or shift into a lower gear and the vacuum would drop enough to open the idle shut off valve again and away I'd go.