Ecoboost turbo question!!!

[Bigfoot7262]

No cooldown for me, as mentioned above, turbo design is much more sofisticated than 30-40 years ago.
If anyone reports signs of coking on a Maverick turbo, then this might be a relevant discussion.
I do believe the quality/cleanliness of your oil is more important with a turbo, and change every year or 5k miles.

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[Mark S.]

I do disable to engine start/stop each time I drive it. One of the reasons is for the turbo and keep a constant flow of oil to it when hot.

Primary cooling for your turbo is provided by the engine's coolant system, not oil.

 

[Jalopy Technology]

Primary cooling for your turbo is provided by the engine's coolant system, not oil.

Which stops circulating coolant as the engine shuts down. Letting the oil circulate on the bearings before shutting down after a hard run may save you $$$$$.

 

[Mark S.]

Which stops circulating coolant as the engine shuts down. Letting the oil circulate on the bearings before shutting down after a hard run may save you $$$$$.

Liquid cooling prevents the kind of heat that requires a cool down. Coked bearings was an issue before liquid cooled turbos, but not any more. When was the last time you heard about coked bearings on a stock turbo?

 

[todd92]

Maybe some of the 'cool down' folks run 1/4 mile drags and shut it off as soon as stopped?

 

[exsubsailor]

I'm from the days of 6V systems and cars with ammeters. It was good practice back then to fast idle the car with the electrical load minimized until the ammeter dropped down to almost neutral before shutting it off. I still do that today but for 15 seconds or so. It helps prolong battery life if nothing else.

 

[Snox801]

Liquid cooling prevents the kind of heat that requires a cool down. Coked bearings was an issue before liquid cooled turbos, but not any more. When was the last time you heard about coked bearings on a stock turbo?

It happens. In fact look at some of the full size trucks, rare sure but it does. Someone earlier stated no cool down needed for daily driving. That is correct but also stated that pushing it hard it is.
If hauling or driving it hard you should indeed still cool it down.
But you are also not wrong as oil has come so far as to almost eliminate issues. But as someone who pulls more than they should with the maverick and other ecoboosts. I can say it’s a great idea to give it time to bring all the temps down in all systems before turning it off.

 

[Mark S.]

It happens.

Show me the data.

 

[Snox801]

Show me the data.

Data has been posted by several oil companies. Amsoil posted it to show how good the oil resist it. Also Mobil one has had data sheets.
Also if new turbos don’t suffer than why does GM have its own test standards for it.
You think they did that for an imaginary problem?

https://blog.amsoil.com/signature-series-protects-turbochargers/

 

[Snox801]

Show me the data.

Now your turn show me the Data that proves it you don’t need to cool it down after running it hard?
Even if cooled by coolant what do you think happens to the coolant after the engine shuts off with bright red turbos from pushing them hard?

 

[Snox801]

I can show you what happens just by leaving my mycal plugged into my maverick. I can run the crap out of it turn it off and monitor the cht guess what happens it keeps climbing higher without more fluid being pumped through the head. It’s called a hotspot. Same happens with turbos. But feel free to do you.
If you have seen any of my threads you will know I work my engines very hard. I also seem to get a chance to add miles very fast and get very high mileage vehicles.

 

[Cherokee]

I’m gonna say it again.
Turbo or not, If I’m fresh off the interstate I’ll give my motor and turbo a minute of my time and a few ounces of fuel to cool down with.
I could care less if it’s needed or not.

 

[AMTRV]

You guys that think you need to sit in the truck for a minute after driving while your turbo cools down…….go for it!
I don’t believe it’s needed …..so I’ll stop, turn off truck and exit

 

[Snox801]

You guys that think you need to sit in the truck for a minute after driving while your turbo cools down…….go for it!
I don’t believe it’s needed …..so I’ll stop, turn off truck and exit

Yep that is sound thought. Manufacturers made a very specific test that tests oils and the ability to limit coking for a thing that according to you doesn’t exist. Yep that sure checks out.

If it wasn’t a problem they would t have created a test for it. But you do you.
let the op decide who seems more legit. The guy on the internet or the manufacturers of oils and the automakers. They may ah e a few dollars into RD.
or they should just save the money in rd and just ask your opinion.

 

[dochawk]

I'm from the days of 6V systems and cars with ammeters. It was good practice back then to fast idle the car with the electrical load minimized until the ammeter dropped down to almost neutral before shutting it off.

I got to drive a '27 Cadillac for a couple hundred miles over two weeks a few years ago. After maybe an hour on the highway, he had me turn on the headlights (dinner plate sized) just to eat current so as to not overcharge the battery!

He would also, rather than turning it off when parking, remove the fuel cap to stop the flow until it went out itself, so as to not leave fuel in the carb. (it relied on the engine to keep the tank pressure up; there was actually a pump on the dash that you used to get the tank up to a psi or two; it wouldn't start without this. And another pump knob on the dash to squirt a bit of fuel into the cylinders to start).

That car was the most enjoyable driving of my life!

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