Recent Topics
Cadillac parked for 25 years...
by mattwithcats. 07/17/19 09:52 AM
Sumitomo Encounter Tires
by parshisa. 07/17/19 09:40 AM
API 1509 Updated with New GF-6B Shield
by Solarent. 07/17/19 07:27 AM
Car Vac Recommendations
by klt1986. 07/17/19 07:05 AM
ECU Cooling
by ET16. 07/17/19 05:58 AM
How's your idle?
by SteveSRT8. 07/17/19 05:47 AM
A01s From Korea branded FourGreen?
by David1. 07/17/19 05:01 AM
New pennzoil rebate 7/16-12/31/19
by pdxglocker9mm. 07/17/19 03:11 AM
'82 BMW 733i M30 - Which Oil
by TXCarGeek. 07/17/19 02:07 AM
Aother MEGA score+Free Mobil 1 oil change
by GMguy84. 07/17/19 12:39 AM
I think I need therapy...
by tony1679. 07/16/19 11:53 PM
Hellcat engine in a Miata
by hate2work. 07/16/19 09:59 PM
Alignment shop questions
by Jeff999. 07/16/19 09:45 PM
ZF Aftermarket, Why Change Your ATF
by BMWTurboDzl. 07/16/19 08:10 PM
Goodyear Wrangler DuraTrac
by NHRATA. 07/16/19 08:05 PM
5 qt Castrol GTX Magnatec 5w-30 $10.30 on Amazon
by gallydif. 07/16/19 07:59 PM
My new rig - 1987 Ford Econoline 27' Glendale RV
by caprice_2nv. 07/16/19 07:44 PM
Air Compressor OCI?
by Vern_in_IL. 07/16/19 07:35 PM
Newest Members
guru2019, MBhuntington, captainfloss, Lyndol, Belczek
68682 Registered Users
Who's Online Now
102 registered members (87sammy, 4WD, Alfred_B, aquariuscsm, atikovi, 69GTX, 9 invisible), 1,914 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics291,981
Posts5,014,523
Members68,682
Most Online2,967
Mar 10th, 2019
Donate to BITOG
Hop To
Page 1 of 2 1 2
Potential minor contamination. How long to run before changing oil? #5143769
06/25/19 01:32 PM
06/25/19 01:32 PM
Joined: Oct 2005
Posts: 11,622
PA
d00df00d Offline OP
d00df00d  Offline OP

Joined: Oct 2005
Posts: 11,622
PA
Wanted to see if there are some informed opinions on this.

I recently had my car's valve covers off for a couple of jobs. I intentionally did this near the end of an OCI so that draining the oil would take contaminants (residual silicone sealant, dust) with it. I've already driven around 150 miles since the job. Is that long enough to make sure as much of the contamination as possible has made its way into the oil and filter? I'm sure there'll be some traces floating around for the next OCI or two. I just want to make sure I'm getting out as much as possible on this drain.

Anyone have any evidence to suggest one way or another?


2008 BMW M3 Sedan 6MT
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5143770
06/25/19 01:34 PM
06/25/19 01:34 PM
Joined: Jun 2003
Posts: 19,177
Apple Valley, California
Chris142 Online content
Chris142  Online Content

Joined: Jun 2003
Posts: 19,177
Apple Valley, California
Considering that most oil pumps pump gallons of oil a minute 150 miles is plenty.


02 Wrangler traveler sae30
87 F250 Valvoline 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor Chevron sae30
Re: Potential minor contamination. How long to run before changing oil? [Re: Chris142] #5143771
06/25/19 01:35 PM
06/25/19 01:35 PM
Joined: Oct 2005
Posts: 11,622
PA
d00df00d Offline OP
d00df00d  Offline OP

Joined: Oct 2005
Posts: 11,622
PA
Originally Posted by Chris142
Considering that most oil pumps pump gallons of oil a minute 150 miles is plenty.

Good point!


2008 BMW M3 Sedan 6MT
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5143827
06/25/19 02:45 PM
06/25/19 02:45 PM
Joined: Mar 2015
Posts: 6,436
Virginia
bbhero Offline
bbhero  Offline

Joined: Mar 2015
Posts: 6,436
Virginia
150 miles of short stop and go or highway run??
Type of oil filter?? Fram or M-1 etc etc??


Nissan Altima 3.5 Coupe
Carquest High mileage full synthetic 5w30
CQ blue 84356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5143863
06/25/19 03:37 PM
06/25/19 03:37 PM
Joined: Sep 2003
Posts: 5,856
Waterloo, ON
Bluestream Offline
Bluestream  Offline

Joined: Sep 2003
Posts: 5,856
Waterloo, ON
Better go a bit more to be safe...


2000 VW Beetle 1.8T M5
2006 Pathfinder 4X4
1991 BMW 735iL
"A fool and his money are soon parted" - Thomas Tusser
Re: Potential minor contamination. How long to run before changing oil? [Re: Bluestream] #5143866
06/25/19 03:41 PM
06/25/19 03:41 PM
Joined: Oct 2005
Posts: 11,622
PA
d00df00d Offline OP
d00df00d  Offline OP

Joined: Oct 2005
Posts: 11,622
PA
Originally Posted by bbhero
150 miles of short stop and go or highway run??
Type of oil filter?? Fram or M-1 etc etc??

Mixed driving. Mahle filter.

Originally Posted by Bluestream
Better go a bit more to be safe...

Because?


2008 BMW M3 Sedan 6MT
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5143904
06/25/19 04:25 PM
06/25/19 04:25 PM
Joined: May 2018
Posts: 963
South Carolina
ka9mnx Online content
ka9mnx  Online Content

Joined: May 2018
Posts: 963
South Carolina
10 minutes idling in the driveway would have done it.


2005 Ranger 3.0 - SuperTech Syn 5w-30/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5143912
06/25/19 04:35 PM
06/25/19 04:35 PM
Joined: May 2019
Posts: 723
WA
Mad_Hatter Offline
Mad_Hatter  Offline

Joined: May 2019
Posts: 723
WA
C'mon, farther...😂

[Linked Image]

(if you're concerned about "dust", are you using the absolute best filter at filtering particles down to "X" microns during the post valve cover job? I was recently reading that the most damaging particle size in an engine is in the 5~10 micron range as clearance between the piston ring and cylinder bore is typically 5 to 10 microns. See link below)

https://www.machinerylubrication.com/Read/30697/choose-oil-filter




Last edited by Mad_Hatter; 06/25/19 04:37 PM.
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5143930
06/25/19 04:58 PM
06/25/19 04:58 PM
Joined: Jun 2002
Posts: 13,130
The Motor City
Kestas Offline
Global Moderator
Kestas  Offline
Global Moderator

Joined: Jun 2002
Posts: 13,130
The Motor City
I dont believe anyone can say with any certainty how long it would take for all of the contaminants to get swept away in the oil.

Re: Potential minor contamination. How long to run before changing oil? [Re: Kestas] #5143937
06/25/19 05:05 PM
06/25/19 05:05 PM
Joined: Oct 2005
Posts: 11,622
PA
d00df00d Offline OP
d00df00d  Offline OP

Joined: Oct 2005
Posts: 11,622
PA
Originally Posted by Kestas
I dont believe anyone can say with any certainty how long it would take for all of the contaminants to get swept away in the oil.

That's more or less what I suspected.

On UOAs (your own or others'), have you ever seen a spike in some reading from a one-time contamination event and then watched it tail off in subsequent UOAs? I made a meager effort to search for such a thing but I guess my Google-fu is weak.


2008 BMW M3 Sedan 6MT
Re: Potential minor contamination. How long to run before changing oil? [Re: Kestas] #5143938
06/25/19 05:05 PM
06/25/19 05:05 PM
Joined: Sep 2002
Posts: 2,940
VA
Gebo Online content
Gebo  Online Content

Joined: Sep 2002
Posts: 2,940
VA
Originally Posted by Kestas
I dont believe anyone can say with any certainty how long it would take for all of the contaminants to get swept away in the oil.



+1 I believe you are most correct.


Now with my limited brain power, I would drain it now as I would think just draining the oil would get the majority of any particles out. I wouldn't wait anymore
for the oil filter to do its filtering on this batch of oil.


'98 LEX LS400 295K
'02 4Runner 235K
'05 Lex LS430 85K
'07 Lex GX470 65K

Schaeffer Oil
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
(Subject to Change as the Wind Blows)
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5143948
06/25/19 05:19 PM
06/25/19 05:19 PM
Joined: May 2019
Posts: 723
WA
Mad_Hatter Offline
Mad_Hatter  Offline

Joined: May 2019
Posts: 723
WA
Originally Posted by d00df00d
I made a meager effort to search for such a thing but I guess my Google-fu is weak.


😂, I like that.. stealing it!👍

Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5144011
06/25/19 06:46 PM
06/25/19 06:46 PM
Joined: Oct 2014
Posts: 645
On the road Midwest
Ihatetochangeoil Offline
Ihatetochangeoil  Offline

Joined: Oct 2014
Posts: 645
On the road Midwest
It won't do any good now, but FWIW, if I have to remove valve covers, I spray clean the motor (with Simple Green) and a handheld Quart or so pump sprayer on a COOL engine, rinse it with water in a garden sprayer, then run the engine until it's warm and dry, shut down again and blow the top off with Compressed air.
Much less to worry about dirt, grease, oil, dead bugs, etc., getting inside the valve covers if the OUTSIDE is already clean enough to eat off of before opening them. I would hope that all this sounds simply like common sense, which applies in your own garage, but not anyplace paid to do the work because they don't have time to care; besides, you'll never see the chunks they drop in YOUR engine.
I'm also BITOG OCD enough to always drain REALLY hot oil, after the engine is completely warm, and I use leather gloves over rubber gloves, long sleeves and have rags handy. Never been burned, I just sleep better draining my oil HOT, so I know whatever is suspended in the oil is still suspended when it's drained.

Re: Potential minor contamination. How long to run before changing oil? [Re: Ihatetochangeoil] #5144047
06/25/19 07:55 PM
06/25/19 07:55 PM
Joined: Sep 2004
Posts: 8,304
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,304
Marshfield , MA
Cleaning the top of the engine bay before lifting the valve cover is probably a good idea. It would only add an extra hr to the job. Too OCD for this hack though grin2


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Potential minor contamination. How long to run before changing oil? [Re: d00df00d] #5144063
06/25/19 08:13 PM
06/25/19 08:13 PM
Joined: Mar 2015
Posts: 6,436
Virginia
bbhero Offline
bbhero  Offline

Joined: Mar 2015
Posts: 6,436
Virginia
One thought about work being done and UOAs done afterwards...

Harryj had a head gasket done on his car....

Then had UOAs done afterwards. .

That may well be one to look at for trending UOAs after work was completed on a car.


Nissan Altima 3.5 Coupe
Carquest High mileage full synthetic 5w30
CQ blue 84356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™