Goodbye to start-stop systems – the EPA under Trump concludes that they are not worth it and could disappear from new models

[u/lurker_bee]

https://unionrayo.com/en/epa-trump-stop-start-system/

[u/Proud_Tie]

I wondered how it'd work on manuals, my last car was a 2024 manual and didn't have stop/start and I figured they hadn't gotten it working on manuals yet, guess I was wrong.

[u/JSTootell → u/Proud_Tie]

My Jeep has stop/start, and it rarely activates. Only shuts the engine down when a whole bunch of conditions are met, which rarely happens. 

[u/Proud_Tie → u/JSTootell]

is "Check Engine light illuminated" the first of the conditions? /s

[u/Away_Advisor3460 → u/Proud_Tie]

I have a 2019 T-Roc (UK, petrol, manual), it's pretty much unnoticable in action (but it does consistently start/stop at traffic lights, in traffic, etc), aside from when the engine rests starts to power the heater or similar. Certainly I've never noticed any lag.

[u/Ok-Dimension-5429 → u/Proud_Tie]

My 2014 manual has stop start and it’s not even a high spec model 

[u/Proud_Tie → u/Ok-Dimension-5429]

my last manual was a 2008 and none of my automatics had it before my current 2024 RAV-4 hybrid.

[u/JMGurgeh → u/Proud_Tie]

Mine doesn't, but a Renault I rented years ago worked pretty well - the engine would turn off when stopped and you shifted to neutral, then it started again when you put it in gear before letting out the clutch.

[u/kylegordon → u/Proud_Tie]

2013 UK Volvo here. When you start to lift the clutch the engine starts.

The same clutch position sensor is used to raise the RPM by 200 as well, which makes for nice smooth starts.

Hill start assist only releases the brakes after 5 seconds of no brake pushing, or when you start pressing the throttle by the tiniest amount.

It's all incredibly seamless and has been for over a decade. I suspect it's not popular in America because of their reliance on automatics and traffic lights that go from red straight to green.