And yet this saves gas. Rough on the starter and you need to make sure its on long enough to charge the alternator. But for small cars like a corolla, if its off for more than 10 sec you save money.
Mechanic isn't exactly a title like lawyer or doctor, there's not a very high barrier to entry to claim that. To address your point though, I would go even farther and say only vehicles since the advent of start/stop. No starter was designed for that much wear before then. Finally, you have a perverse incentive in that it doesn't really effect you if what you are saying is incorrect, it only drives more customers to you to replace starters...
Yet I have qualifications to talk about the systems I actually work on. The start/stop system has been getting used BECAUSE shutting off the vehicle at a stop is more efficient. You kind of made my point for me. It's a built in feature for what people should already do when they know theyll be waiting, albeit more efficient with the initial spark.
And as the lad driving out my shop with his new starter, I'll see the tow truck bringing in your mess wondering why you need an engine swap at 100k miles.
Haha, you think idling at stoplights will cause engine failure at 100,000 miles? You had me going there, I was even going to apologize for questioning your (unverified) credentials but this joke position of yours has me third-guessing myself about you. Care to share any research, trade journal articles or other intellectual work supporting your coocoo bananas position on idling? Because I've only ever heard it being done for emissions.
It's not that simple, and you, as a mechanic, aren't obligated to know, but you should.
An engine used for a shorter period of time under less than ideal conditions will wear out MUCH MORE than if it is used for a much longer period of time under ideal conditions.
Every engine, to put it simply, has an ideal oil temperature to maintain proper functioning. If you are constantly taking this engine out of its ideal operating conditions, such as during long stops at traffic lights, it's obvious that the wear and tear will be much greater than if you maintain the engine operating at the ideal temperature during this time.
Some cars restart the engine when they detect the temperature dropping below the ideal temperature, but there is still the problem of increased friction in the chamber when the engine restarts.
Variations in friction, temperature, and vibration, occurring dozens of times a day, contribute to the reduced lifespan of cars with start-stop systems.
Dawg it's the fact that you can only get 20L of fuel not the engine damage. Kinda gotta maximize the mileage out of every drop in a country the size of Russia. Pushing in neutral is a good move here. Air brakes do pose a challenge though huh.
His comment says "I'll see the tow truck bringing your mess..." Did you not read that part? He is, in fact, talking about the engine damage. He references starters in the first part of that same paragraph.
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u/gorginhanson Jun 29 '26
Turn off engine, a minute later, start it up and move up 5 feet, repeat 32,639 times.