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Oil Chg on Turbo Vehicle #4534219
10/04/17 10:44 PM
10/04/17 10:44 PM
Joined: Oct 2014
Posts: 93
State
Rockrz Offline OP
Rockrz  Offline OP

Joined: Oct 2014
Posts: 93
State
OK, so back in the day when I used to work in auto repair shops... I remember some special thing we had to do when changing the oil on a turbo vehicle.

I though it was once you get the new oil in the engine... you would disable it's ability to start and then hit the starter for a few seconds so the engine is turning over which helps get oil up to the turbo so when you do start the vehicle there is oil in the turbo and it's not starting dry.

Somebody please re-fresh my memory and let me know if this is the correct procedure and if it is not... what is?


Last edited by Rockrz; 10/04/17 10:44 PM.
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534229
10/04/17 10:55 PM
10/04/17 10:55 PM
Joined: Apr 2016
Posts: 1,156
KS
FordBroncoVWJeta Offline
FordBroncoVWJeta  Offline

Joined: Apr 2016
Posts: 1,156
KS
Walmart says to prefill the oil filter. Not once have I seen someone do it, and some of those cars have 200k+ miles on them. On my VW i just put it on since it sits at a 90 degree angle. Just dont rev the engine after starting it. Let it run a couple minutes (as long as you put enough oil in it) at idle then check it, thats what i do. No failures yet.


2017 Volkswagen Jetta 1.4T - 2015 Honda CRV 2.4 - 2012 Volkswagen Jetta 2.0 - 2007 Chevy Trailblazer 4.2 - 2001 Pontiac Sunfire 2.2
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534232
10/04/17 11:12 PM
10/04/17 11:12 PM
Joined: Apr 2016
Posts: 1,202
Campbellsville, KY
Alex_V Offline
Alex_V  Offline

Joined: Apr 2016
Posts: 1,202
Campbellsville, KY
Pre-filling the filter helps on any engine, but the main thing to observe on a turbo car is don't rev it for 20-30 secs while the oil gets to the turbo. But that's good practice on any engine, so there's really nothing different.

If it was necessary to prime the system on a turbo engine (cranking before starting) then we'd see
about a 90% higher failure rate on turbos than we currently see. laugh

Last edited by Alex_V; 10/04/17 11:12 PM.

To quote a friend, "Synthetics, man."

'85 GMC C3500, 454, 132K
'82 Mercedes 300CD, OM617 turbo, 173K (totaled 2018, in rehab)
'85 Mercedes 300TD, OM617 turbo, 217K (wife's)
'67 Suburban, 350, 331K
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534234
10/04/17 11:17 PM
10/04/17 11:17 PM
Joined: Jan 2016
Posts: 868
NC
Vladiator Offline
Vladiator  Offline

Joined: Jan 2016
Posts: 868
NC
Once you shut the engine off before an oil change - the old oil is still in the turbo and it will take a few hours to COMPLETELY drain off. So some residual oil is always there and that should be plenty for the turbo until new oil gets to it. Turbo gets more damage on a cold start (anything below 50F, or 6+ hours of sitting is considered a cold start, compared to normal engine operating temperatures), than the oil change procedure.

Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534236
10/04/17 11:22 PM
10/04/17 11:22 PM
Joined: Dec 2011
Posts: 5,662
North Carolina
rooflessVW Offline
rooflessVW  Offline

Joined: Dec 2011
Posts: 5,662
North Carolina
IMHO, there's no difference between parking a car overnight and starting it in the morning and starting a car after an oil change.


"Zed's dead baby, Zed's dead."
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534243
10/04/17 11:47 PM
10/04/17 11:47 PM
Joined: Dec 2016
Posts: 8,017
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,017
Waco, TX
At idle, the turbo is spinning, but not very fast at all.

You should see how the turbo Cummins powered GSE is operated by the Air Force....
Shut down at full RPM and load while the turbo is dull red.......
then the engine cools of to 20*F for 24 hours and
then started and immediately brought to full throttle!!!

Such abuse like that........


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534291
10/05/17 05:28 AM
10/05/17 05:28 AM
Joined: Feb 2003
Posts: 8,078
Jupiter, Florida
Cujet Offline
Cujet  Offline

Joined: Feb 2003
Posts: 8,078
Jupiter, Florida
I like to prefill the oil filter. Other than that, I don't see any additional requirement. I've been operating turbocharged cars and turbocharged race cars for 35 years with no oil related failures. I do believe in quality synthetic oils for turbocharger protection and prevention of coking.


People who count on their fingers should maintain a discreet silence.
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534294
10/05/17 05:37 AM
10/05/17 05:37 AM
Joined: Jul 2015
Posts: 4,350
New England
madRiver Offline
madRiver  Offline

Joined: Jul 2015
Posts: 4,350
New England
Our 2005 Legacy turbo owned since new has 220k miles running factory turbo.

I mostly changed the oil every 4k with conventional and never wasted my time prefilling the filter or any special method. I let you all know when the turbo blows up!

Re: Oil Chg on Turbo Vehicle [Re: madRiver] #4534316
10/05/17 06:32 AM
10/05/17 06:32 AM
Joined: Apr 2012
Posts: 10,493
Kendall, FL
wemay Offline
wemay  Offline

Joined: Apr 2012
Posts: 10,493
Kendall, FL

I've never deviated from how i do a turbo oil change as compared to a NA one either.

Originally Posted By: madRiver
Our 2005 Legacy turbo owned since new has 220k miles running factory turbo.
I mostly changed the oil every 4k with conventional and never wasted my time prefilling the filter or any special method. I let you all know when the turbo blows up!


18 KIA Sportage 2.4 AWD
M1HM 10W30, OEM

13 Hyundai Santa Fe Sport 2.0T
PPeL 5W30, OEM
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534325
10/05/17 06:44 AM
10/05/17 06:44 AM
Joined: Sep 2014
Posts: 2,207
US-WA
Dyusik Offline
Dyusik  Offline

Joined: Sep 2014
Posts: 2,207
US-WA

Last edited by Dyusik; 10/05/17 06:45 AM.

95 Cherokee 190K DELO 10W30, XG8
07 IS250 106K STP syn HM 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 21K VR1 20w50, NG1515
14 RX450h 40k Idemitsu 0w20, 57047
Re: Oil Chg on Turbo Vehicle [Re: madRiver] #4534385
10/05/17 08:31 AM
10/05/17 08:31 AM
Joined: Aug 2003
Posts: 2,319
NJ
bluesubie Offline
bluesubie  Offline

Joined: Aug 2003
Posts: 2,319
NJ
Originally Posted By: madRiver
Our 2005 Legacy turbo owned since new has 220k miles running factory turbo.

I mostly changed the oil every 4k with conventional and never wasted my time prefilling the filter or any special method. I let you all know when the turbo blows up!

What?!?!?!? You need to be entered into the Subaru turbo owner's hall of fame!!

I presume you're also still running the turbo and AVCS banjo bolt filters? Interesting that you heeded SoA's recommended oci for your model year (technically you exceed it by 250 miles smile ) but you didn't heed their recommendation to use "synthetic" oil.

My first turbo was replaced at 62k due to excessive oil getting past the seals and that one lasted only 20k miles because I didn't heed Subaru's OCI and followed advice on bitog based on good uoa's and pushed my intervals to 7-8k miles. frown


'04 Subaru Forester 2.5XT
Castrol Edge 0W-40
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534442
10/05/17 09:29 AM
10/05/17 09:29 AM
Joined: Dec 2006
Posts: 4,226
Port Orange, Florida
Panzerman Offline
Panzerman  Offline

Joined: Dec 2006
Posts: 4,226
Port Orange, Florida
I would think the turbo would stay wet from oil during g a change. Not like your draining the oil then coming back a year later to fill it.



2006 Dodge Ram 2500 Hemi 4x4
2016 Dodge Challenger Scat Pack
Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534518
10/05/17 11:09 AM
10/05/17 11:09 AM
Joined: Feb 2014
Posts: 595
Margate England
Claud Offline
Claud  Offline

Joined: Feb 2014
Posts: 595
Margate England
Pretty much as soon as the oil light goes out or the gauge shows pressure oil will be pumped to the turbo. Letting it idle while you put on the seat belt means the oil in the turbo will be flushed out and you are good to go.
Similarly, letting the engine idle for a few seconds before shutting it off is also good practice.

If you are installing a replacement turbo they normally come with a few cc's of oil for pre lubing the bearings, but that is irrelevant to this thread.

Claud.

Re: Oil Chg on Turbo Vehicle [Re: Rockrz] #4534524
10/05/17 11:18 AM
10/05/17 11:18 AM
Joined: Oct 2014
Posts: 93
State
Rockrz Offline OP
Rockrz  Offline OP

Joined: Oct 2014
Posts: 93
State
OK, just to be on the safe side... I'll disable the engine's ability to start so I can turn it over for a few seconds to ensure the new oil is circulated up in to the turbo before the engine is actually started.

Re: Oil Chg on Turbo Vehicle [Re: FordBroncoVWJeta] #4534540
10/05/17 11:39 AM
10/05/17 11:39 AM
Joined: Oct 2009
Posts: 4,041
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,041
Wet side WA
Originally Posted By: FordBroncoVWJeta
Walmart says to prefill the oil filter. Not once have I seen someone do it, and some of those cars have 200k+ miles on them. On my VW i just put it on since it sits at a 90 degree angle. Just dont rev the engine after starting it. Let it run a couple minutes (as long as you put enough oil in it) at idle then check it, thats what i do. No failures yet.


I do this on both my Duramax and Corolla. Although the filter on the Duramax is slightly tilted so it isn't totally full.


2004 Corolla 130017
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
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