Turbo on a long trip

[grimmjeeper]

If you're concerned, go ahead and idle for a minute or two when you stop before you shut it off. But realistically, you don't strictly need to.

I will say that driving a big Jeep down the highway can have you continually using low boost. You're not working it really hard but you're still working it. So you will have a little heat soak. But the engine is designed for it so it's not like an 80s turbo engine.

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[croppz]

On most modern turbocharged vehicles, if the temp hits a certain point after parking, the fans will run after shutting off to cool down. Now Im not sure if the 2.0T does this just yet. But you’re safe either way.

 

[dchemphill1]

Driven my 2020 turbo from Omaha to Moab, to Durango, black hills and another trip to Glacier NP. Drive and enjoy.

 

[BDinTX]

This is in the manual for my EcoDiesel and is in line with what I’ve seen regarding turbocharger cooldown for everything I’ve had with a turbo in it. When I come off the freeway to fill up the 2.0T I let it idle for a few minutes before pulling up to a pump and turning it off. On the diesel I let it idle while I fill up, then move to a parking spot to shut down.

 

[zouch]

there we go; someone who RTFM!

almost every truck on the highway is spinning a turbo; they've routinely been doing this for decades already.
follow a guideline like the one shown here (from your Users Manual!) and you won't have any problems.

This is in the manual for my EcoDiesel and is in line with what I’ve seen regarding turbocharger cooldown for everything I’ve had with a turbo in it. When I come off the freeway to fill up the 2.0T I let it idle for a few minutes before pulling up to a pump and turning it off. On the diesel I let it idle while I fill up, then move to a parking spot to shut down.

 

[PhrogUSMC]

This is my first turbo vehicle ever and have a question(s). I have a road trip coming up with a majority of the trip is on the interstate for approximately 421 miles out of 529 70-75mph cruising. Does the turbo require any down time after so many hours of driving? I usually take a break every 2.5-3 hours.

Just send it. It can handle it. Have driven mine between VA and IL multiple times, including towing our 3k lbs dry weight camper once, through a blizzard. It does extremely well.

 

[Ramboy]

This is my first turbo vehicle ever and have a question(s). I have a road trip coming up with a majority of the trip is on the interstate for approximately 421 miles out of 529 70-75mph cruising. Does the turbo require any down time after so many hours of driving? I usually take a break every 2.5-3 hours.

These engines cruise really nicely. I-80 to I-84 coming and going 1500 miles each way (750 miles per day) it was a champ and always responded to my request to cruise and pass; much of the way 80-85 MPH, which is the posted and typical speed on those open freeways. I love my 2.0, both of them.

 

[grimmjeeper]

This is in the manual for my EcoDiesel and is in line with what I’ve seen regarding turbocharger cooldown for everything I’ve had with a turbo in it. When I come off the freeway to fill up the 2.0T I let it idle for a few minutes before pulling up to a pump and turning it off. On the diesel I let it idle while I fill up, then move to a parking spot to shut down.

To be fair, the diesel has a big heat soak problem because the radiator can't shed enough heat. That engine generates a lot more heat than the 2.0 by a long shot. So the 2.0 doesn't need as much cool down.

Still, following that chart for the 2.0 won't hurt anything.

 

[4Lo2Yolo]

I owned a 2.0 turbo JLU. Spent a lot of time wheeling it. What I noticed is that the turbo comes on boost at approximately 2000 rpm. I noticed that on trails I wouldn't hear the radiator fans as long as I kept it under 2k. But if I went over 2k, the radiator fans would run non stop just to supply air to the turbo / intercooler loop, even when the engine coolant wasn't running hot. I would put the shifter in manual mode and select a gear that kept it below 2k so I didn't have to hear the fans, which are rather loud.

Side note, on trails I'd also leave the heater on low fan speed when it wasn't hot outside and wouldn't affect my level of comfort, just for that little bit of extra cooling.

 

[There’sOnlyOne]

As others have said if your driving for a few hours straight then let it idle a minute or two before shutting down. Or if you're short tripping and into the turbo often while doing so. This is suppose to help with turbo longevity. The owners manual even has this info. It's been a regular thing for decades. Had a 1987 Turbo Coupe Thunderbird for 6 yrs and a 2001 7.3 F250 for 10yrs and did this every time and never ever had any issues with turbo.

As far as the engine it's like any engine you can run it until it runs out of gas without ever turning it off. You're only doing the above for the turbo to cool down so the oil doesn't cook in it. Because of the high temps the turbo creates.

I might be wrong but fans still running after engine shut off don't keep circulating the oil through the turbo or engine. It's just blowing air over the engine compartment.

 

[sevd]

Just like everyone is saying, drive it and drive it. I've driven mine across country 2x at 70-80 mph.

 

[Zandcwhite]

there we go; someone who RTFM!

almost every truck on the highway is spinning a turbo; they've routinely been doing this for decades already.
follow a guideline like the one shown here (from your Users Manual!) and you won't have any problems.

We do a lot of road trips. Show me how to go from the freeway to the pump without at least that recommended 1 minute cool down? Take the off ramp, roll up to the stop sign, even if there's no traffic there's 15-30 seconds. Turn and cruise into the station and pull up to the pump. There's another 30 seconds to a minute. Even if you're extra worried let it idle for another 30 seconds. You've now doubled the recommended cool down time just driving like anyone else on a roadtrip. If it's a busy truck stop, odds are you waited at the stop sign or light getting off the freeway for a few minutes. You may even of waited for a pump to open up for several more. That 1 minute cool down from highway speed is already built into living in normal society.

 

[greige]

I agree with others posting here, give the coolant time to bring the turbo temperatures down before shutting off, mainly and especially after highway driving. The turbo can get very hot and if you just shut it off you will get some coking in the turbo and on the variable vanes. A short quick shutdown where you fill up and get going again may not cause measurable coking, but it could add up over time. It may be interesting if you get the scangauge or similar device and set one of the gauges to EGT so you can see how high it gets while driving and what it gets down to after a minute or two of cooling.

 

[40Caliber]

my wife's 2023 2.0 has been from boston to alaska and back pulling an 1800lb teardrop (15,000 miles round trip). It's gone to Moab and back in 90 degree heat (6000 miles round trip) and I haven't "cooled down in the parking lot" for any time when i pull in.



as someone said, driving at slow speeds cools it down.

frankly I don't hear the turbo even running rolling down the highway. stomping on it to pass and such not even sure it's running all the time - i will leave that to a mechanic to comment.

I remember cooling down my 1987 Saab turbo in the parking lot in the 80s when i was stationed in germany (after pulling off the autobahn) but that was after flying down the road at 120mph for a couple hours

 

[gato]

After you have been at highway speeds for a time, when you make a stop, let the engine idle for 2-3 minutes so the turbo can cool. Also, never rev the engine and then shut the engine off.

This is not needed at all. The Turbo cooling pump continues to work after the vehicle is shutdown on it is on, if needed.

Drive your jeep hard and park right away in the garage, shut it off, go outside behind passenger front tire and you will hear that pump going for a few minutes. If you drive mildly, it is. not needed and doesn't come on.

This is not the 1970s anymore, evey manufacturer has learned how to keep turbos cool. Even Jeep.

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