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How reliable turbos and CVT's really are? #4557663
10/28/17 07:48 PM
10/28/17 07:48 PM
Joined: Jun 2012
Posts: 525
Atlantic, Canada
wolf_06 Online content OP
wolf_06  Online Content OP
Joined: Jun 2012
Posts: 525
Atlantic, Canada
Hey guys,

I will get a new car sooner or later, and a lot of models now have CVT's and turbo engines.

To a durability perspective, are these two items durable for 8-10 years with good maintenance?


2011 Chevy Cruze 1.8L 6AT
Castrol Magnatec syn blend 5w30, NAPA filter.
Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4557666
10/28/17 07:54 PM
10/28/17 07:54 PM
Joined: Dec 2011
Posts: 4,759
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 4,759
North Carolina
Turbos, yes.

CVTs suck but they'd probably make it 8-10 years pretty easy.


"Zed's dead baby, Zed's dead."
Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4557697
10/28/17 08:19 PM
10/28/17 08:19 PM
Joined: Dec 2014
Posts: 192
USA
dbias Offline
dbias  Offline
Joined: Dec 2014
Posts: 192
USA
with both turbos and cvt transmissions proper lubrication with a top quality oil is essential for longevity. There is a great online resource for information like that but i cant think of its name right now.


2011 VW JETTA Castrol Edge 0W-40
2012 FORD TRANSIT CONNECT Castrol Edge 5W-20
2016 HONDA CIVIC COUPE Castrol Edge 0W-20
2017 AUDI A4 Ravenol SSL 0W-40
Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4557706
10/28/17 08:22 PM
10/28/17 08:22 PM
Joined: Jul 2009
Posts: 601
texas
danez_yoda Offline
danez_yoda  Offline
Joined: Jul 2009
Posts: 601
texas
If you get a cvt, drive it like grandmaw and youll be ok. Aggressive driving will kill them fast.

Re: How reliable turbos and CVT's really are? [Re: dbias] #4557745
10/28/17 08:53 PM
10/28/17 08:53 PM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,278
WI
Originally Posted By: dbias
with both turbos and cvt transmissions proper lubrication with a top quality oil is essential for longevity. There is a great online resource for information like that but i cant think of its name right now.


It's something like Ron is the oil man or boy or something


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4557780
10/28/17 09:17 PM
10/28/17 09:17 PM
Joined: Jul 2017
Posts: 183
Venezuela, South America
Emanuel Offline
Emanuel  Offline
Joined: Jul 2017
Posts: 183
Venezuela, South America
But I don't think a turbo would last 15 years and 300k miles

Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4557813
10/28/17 09:45 PM
10/28/17 09:45 PM
Joined: Sep 2016
Posts: 513
Vienna, VA
TinyVoices Offline
TinyVoices  Offline
Joined: Sep 2016
Posts: 513
Vienna, VA
My old boss has a 90s turbo Volvo with close to 400k on it on the stock turbo. We talked cars often and he always talked about how good it was.


1993 Toyota MR2 Hardtop N/A - 160k miles - Valvoline Max Life 5w30
2006 Toyota Matrix XR AWD (Fiancee) - 130k miles - Valvoline Max Life 5w30
Re: How reliable turbos and CVT's really are? [Re: Emanuel] #4557814
10/28/17 09:46 PM
10/28/17 09:46 PM
Joined: Jan 2005
Posts: 7,549
North Alabama
wavinwayne Offline
wavinwayne  Offline
Joined: Jan 2005
Posts: 7,549
North Alabama
Originally Posted By: Emanuel
But I don't think a turbo would last 15 years and 300k miles


My 2000 VW GTI 1.8L turbo has 327k miles on the original turbo, with less than recommended maintenance.


Silence is golden, but duct tape is silver.
2018 Subaru Forester 2.5/CVT
Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4557831
10/28/17 09:58 PM
10/28/17 09:58 PM
Joined: Jul 2016
Posts: 177
Albury, NSW
JFAllen Offline
JFAllen  Offline
Joined: Jul 2016
Posts: 177
Albury, NSW
First: Make sure the turbo charger is water cooled!!!
-Oil (only) cooed turbo's have a significantly higher risk of 'coking' the oil on shutdown, as their is no water to hold temperatures in the bearings below 100C.
-This is responsible for many VW BKD 2.0L turbo failures

Always use the correct specification synthetic oil.

Change it at no more than 10,000kms. In Aus, anyone running turbo performance cars is 5,000kms. If you cruise the freeway to work regularly, 10,000kms is fine. 15,000mile OCI's on turbo petrol vehicles are a recipe for turbo failures. The sump's (too small) and filters simply can't deal with it. Big Diesel truck engines can get away with +20,000mile OCI's as the sump's are massive and have multi stage filtration. they also tend to run long kms cross country. most punters don't.
-As everyone here will attest, regular maintenance and inspection of your car is the simplest and cheapest way to ensure many years of happy motoring.

As for a CVT. the real question is do you have a soul (any sort of passion, not a religious thing?) and if the answer is yes, then why would you buy a car with an utterly soulless transmission.

Re: How reliable turbos and CVT's really are? [Re: JFAllen] #4557841
10/28/17 10:03 PM
10/28/17 10:03 PM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline
bigj_16  Offline
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
Originally Posted By: JFAllen
First: Make sure the turbo charger is water cooled!!!
-Oil (only) cooed turbo's have a significantly higher risk of 'coking' the oil on shutdown, as their is no water to hold temperatures in the bearings below 100C.
-This is responsible for many VW BKD 2.0L turbo failures

Always use the correct specification synthetic oil.

Change it at no more than 10,000kms. In Aus, anyone running turbo performance cars is 5,000kms. If you cruise the freeway to work regularly, 10,000kms is fine. 15,000mile OCI's on turbo petrol vehicles are a recipe for turbo failures. The sump's (too small) and filters simply can't deal with it. Big Diesel truck engines can get away with +20,000mile OCI's as the sump's are massive and have multi stage filtration. they also tend to run long kms cross country. most punters don't.
-As everyone here will attest, regular maintenance and inspection of your car is the simplest and cheapest way to ensure many years of happy motoring.

As for a CVT. the real question is do you have a soul (any sort of passion, not a religious thing?) and if the answer is yes, then why would you buy a car with an utterly soulless transmission.


I agree. Anyone trying to extend an OCI on a passenger car gas turbo is asking for it.

By the way. JFAllen, if you're looking to sponsor any one from the U.S.A. to Albury, I'm first in line! smile


Last edited by bigj_16; 10/28/17 10:05 PM.
Re: How reliable turbos and CVT's really are? [Re: wavinwayne] #4557842
10/28/17 10:03 PM
10/28/17 10:03 PM
Joined: Jul 2017
Posts: 183
Venezuela, South America
Emanuel Offline
Emanuel  Offline
Joined: Jul 2017
Posts: 183
Venezuela, South America
Originally Posted By: wavinwayne
Originally Posted By: Emanuel
But I don't think a turbo would last 15 years and 300k miles


My 2000 VW GTI 1.8L turbo has 327k miles on the original turbo, with less than recommended maintenance.
Well you are right, but nowadays the turbos of downsized engines have to work a lot harder than the ones in your GTI. They gotta make boost even when you are accelerating slowly in traffic. On the other side the turbos of your GTI are used mostly in hard acceleration.

That is why I think that the turbos of new cars won't last as much as the ones from 10 years old plus engines

Last edited by Emanuel; 10/28/17 10:04 PM.
Re: How reliable turbos and CVT's really are? [Re: danez_yoda] #4557911
10/28/17 11:14 PM
10/28/17 11:14 PM
Joined: Mar 2015
Posts: 5,040
Virginia
bbhero Offline
bbhero  Offline
Joined: Mar 2015
Posts: 5,040
Virginia
Not really true at all... I've pushed my CVT in my car many, many times. Well above the regular rpm range 2-3k rpm. A whole bunch of times 4400-6000 rpm. It has been just fine. And continues to be very good.

Last edited by bbhero; 10/28/17 11:14 PM.

Nissan Altima 3.5 Coupe
Quaker State High Mileage 5w30 Purolator Boss 14610
"Treat your family like your friends and treat your friends like your family."
Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4557970
10/29/17 01:00 AM
10/29/17 01:00 AM
Joined: May 2012
Posts: 5,396
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline
Joined: May 2012
Posts: 5,396
Fort Lauderdale, FL
The turbos of today also have better metallurgy and engineering than turbos of old. Not saying they're all good, but I would definitely use an oil that is a beast at high temperature.

HDEO seems to be great at this, whether dino or syn. Probably because resistance to coking is a major part of an HDEO getting manufacturer certs.

Not just for the turbo, but because the pistons tend to run on the hot side of the spectrum as well. A lot of engine builders I have known who were into small displacement turbo engines have told me that turbo engine pistons love to cook almost as much as turbos in shutdown. Mainly in the ring pack.

We see some nasty stuff in the marine realm as well. Piston and oil temps can get real stupid when those things are wide open. People who like to put the hammer down with a dirty bottom sometimes melt them entirely.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: How reliable turbos and CVT's really are? [Re: Emanuel] #4558002
10/29/17 03:35 AM
10/29/17 03:35 AM
Joined: Oct 2010
Posts: 8,820
Virginia Beach
Astro14 Offline
Astro14  Offline
Joined: Oct 2010
Posts: 8,820
Virginia Beach
Originally Posted By: Emanuel
But I don't think a turbo would last 15 years and 300k miles


Well...only 225,000 miles on the original turbo in my Wife's Volvo XC, so time will tell if it gets to 300,000.

192,000 on the original turbo on the T5. Original turbos on the s600 are at 96,000 now.

So, will a turbo last?

I'm betting they will. Two of my cars have already made it past your 15 year point. Most cars don't make it to 300,000, but my wife's is well on its way with its original turbo.

Last edited by Astro14; 10/29/17 03:38 AM.

32 Packard 15W40
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: How reliable turbos and CVT's really are? [Re: wolf_06] #4558041
10/29/17 06:08 AM
10/29/17 06:08 AM
Joined: Feb 2003
Posts: 7,444
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,444
Jupiter, Florida
A turbocharged engine, operated on a quality synthetic oil, with regular oil changes, will last a very long time. The turbocharger itself will also last if the above conditions are met, along with the requirement for good air filtration and no chance of debris or water getting in. Over long periods of time, say 300K miles, the aluminum compressor will show signs of significant erosion with less than perfect air filtration due to various reasons (mostly poor maintenance) . Good maintenance is key.


People who count on their fingers should maintain a discreet silence.
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