Ideling?

[samd1351]

My wife's Cherokee has the auro start / stop. It's hell on batteries. The original battery lasted 18 months. I turn it off if we're in heavy traffic or in a drive thru.

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[OLdchuck]

I personally would not buy a car unless you can disable the stop/start feature. I think the F150 now or in the past was set so you could NOT turn it off. Most cars will default to the start/stop feature and you have to turn it off at start up. I do have one car that the system stays off until you turn it back on which I have never done...

 

[Soulja4187]

My wife's Cherokee has the auro start / stop. It's hell on batteries. The original battery lasted 18 months. I turn it off if we're in heavy traffic or in a drive thru.

Correct but most car with this feature turn off 5 seconds after you stop which to me there's no savings for shutting down 15 seconds. Most of these cars also restart themself if you have a ac on. The cars that have the stop/ start feature but no toggle to turn off or no you can pull the fuse

 

[Hack]

Idling is not good for any car. Especially if it's a new car it's not good for it. When a car is new you want to have varying loads and varying RPMs to seat the rings. Having said that, within the first few hundred miles the rings are either seated well or not.

I still try to avoid excessive idling in any gas engine that I want to use for performance purposes. Having the rings slide up and down in the cylinders with very little load on them can glaze the cylinder walls. That's one reason that I hate cylinder deactivation. I think it's terrible on the engine.

What's the worst that could happen? Your car doesn't make quite as much power as it could because the ring seal isn't the greatest. It might burn a little oil as well. Not a big deal. As was stated before, cop cars and cabs idle all the time. The engines continue functioning just fine.

 

[Mustang5ohMan]

Idling is not good for any car. Especially if it's a new car it's not good for it. When a car is new you want to have varying loads and varying RPMs to seat the rings. Having said that, within the first few hundred miles the rings are either seated well or not.

I still try to avoid excessive idling in any gas engine that I want to use for performance purposes. Having the rings slide up and down in the cylinders with very little load on them can glaze the cylinder walls. That's one reason that I hate cylinder deactivation. I think it's terrible on the engine.

What's the worst that could happen? Your car doesn't make quite as much power as it could because the ring seal isn't the greatest. It might burn a little oil as well. Not a big deal. As was stated before, cop cars and cabs idle all the time. The engines continue functioning just fine.

Next time I’m going to ignore the break in and and make sure the rings seat real throughly properly. Open up on the high and back off and only slow down for off ramps.
Everything would be well seated by then.

 

[OLdchuck]

With old school gear heads that was a common practice . Let it get to operating oil temp of around 160 F or higher for a bit and then really get on it then backing off then getting on it to redline numerous times. Do not run long at continuous rpm and continuously keep accelerating and decelerating. Do keep an eye on oil pressure and temps just in case there was an issue with the build. Do this for maybe 50-100 miles then change the oil and continue the procedure for the first couple hundred miles. The old school guys say the rings will be completely seeded and ready for the strip or whatever.

This was for old school pushrod engines but do not think there should be a difference in seeding rings..
This seems to be seldom done just as few actually seed in the brake pads. However, there are those who do not agree with this procedure and apparently they are the ones who write the owners' manual.

 

[Mustang5ohMan]

With old school gear heads that was a common practice . Let it get to operating oil temp of around 160 F or higher for a bit and then really get on it then backing off then getting on it to redline numerous times. Do not run long at continuous rpm and continuously keep accelerating and decelerating. Do keep an eye on oil pressure and temps just in case there was an issue with the build. Do this for maybe 50-100 miles then change the oil and continue the procedure for the first couple hundred miles. The old school guys say the rings will be completely seeded and ready for the strip or whatever.

This was for old school pushrod engines but do not think there should be a difference in seeding rings..
This seems to be seldom done just as few actually seed in the brake pads. However, there are those who do not agree with this procedure and apparently they are the ones who write the owners' manual.

Agreed. I buy it and drive it how I want. There’s 3. Years and 36,000 miles if something were to happen.

 

[OLdchuck]

As long as a detailed report from the cars cpu can not be tracked by the service techs which I do not think they can then all is good.
Some cars such as a Porsche can be tracked by techs for several stages of over reving the engine. This is handy however when buying used as you can see if the engine was really dogged and how many times. No one really cares unless it has been pushed beyond redline numerous times. I think the Mustang has a fuel pump shutoff so you can not exceed redline but on some cars you are on your own..

 

[OLdchuck]

Briebee,
Did not know about the Coyote dual fuel delivery. I tend to enjoy delving into the engineering of engines so that is food for thought. I tend to question over complicated systems Is there a down side that has been noticed? Does the GT350Coyote or the Voodoo have it?

 

[OLdchuck]

I realize the GT 350 has the Voodoo as well as the GT 500 and they both have dual fuel delivery from what I could glean.
Seems that Toyota has been using the dual system for around ten years and Ford seems committed to it.

 

[Elp_jc]

Nope. VooDoos are port-injected only... which I'd have liked on my Coyote too . But those have dual cam VVT; our Coyotes only on the intake. But with so many cam phaser problems, maybe that was a good thing. Ha ha.

 

[OLdchuck]

Elp, Good to know. I had thought Ford was moving to dual delivery on all their engines. Interesting on their true performance engines they are staying with Port injection. There has to be a reason why. Perhaps a Port only without dual cam VT would be the best option..

 

[EFI]

Put it this way, 30 minutes of idling is going to be alot less stressful on the engine than 30 minutes of cruising on the highway at 2000rpm.

You don't ever worry about going for a highway cruise do you?

 

[Soulja4187]

Put it this way, 30 minutes of idling is going to be alot less stressful on the engine than 30 minutes of cruising on the highway at 2000rpm.

You don't ever worry about going for a highway cruise do you?

I think you meant to say 30 minutes of stop and go traffic is far more stressful on an engine then letting it dle. Car under load stop, go, stop causes fan kicking on every second.

Highway cruise is easier on the engine as air from you driving cools the engine.

 

[EFI]

I think you meant to say 30 minutes of stop and go traffic is far more stressful on an engine then letting it dle. Car under load stop, go, stop causes fan kicking on every second.

Highway cruise is easier on the engine as air from you driving cools the engine.

Yes, but even cruising is more "stressful" than idling. Not only are you using more RPM, but the engine has the entire drivetrain's load on it (while in gear) and also has to fight air resistance.

An engine idling has the least amount of RPM and actual engine load than any other type of driving short of decelerating and the injectors are cut off. There's no air resistance to worry about or drivetrain load.

While the cooling point is valid, an idling engine has no issues staying cool with the fans running.

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