Recent Topics
SuperTech synthetic on Rollback $15.68
by bubbatime
15 minutes 33 seconds ago
Mercury V-6
by gotnogunk
25 minutes 4 seconds ago
Pennzoil Gold 0w20 question
25 minutes 35 seconds ago
Why did they ever go away from glass head lamps?
by BAJA_05
37 minutes 35 seconds ago
New 4.2L V8 from GM and Cadillac
by MrHorspwer
51 minutes 54 seconds ago
04 Nissan 350z, Castro Edge 5W30, 76873 miles
by funkymonkey1111
53 minutes 57 seconds ago
E-Mail Notification Of Threads Is Sporadic
by billt460
59 minutes 36 seconds ago
Wire brush for hub holes
by spavel6
Today at 10:20 AM
Who uses Otis gun cleaner, lubricants, CLPs, etc.?
by Ed_Flecko
Today at 10:10 AM
by zfasts03
Today at 10:05 AM
Whats the best free antivirus program as today?
by BAJA_05
Today at 10:00 AM
One oil for all cars and driving conditions
by Oldtom
Today at 09:12 AM
Gravity inversion for the back..
by ZZman
Today at 08:12 AM
Super Tech 15w40 and other HDEO's.... the clutch?
by BigJohn
Today at 08:04 AM
Bridgestone DriveGuard - 2014 DOT Date
by carguy996
Today at 07:56 AM
random overheat
by joaks
Today at 07:26 AM
2012 Hyundai Santa Fe 2.4L Starter
by Urshurak776
Today at 06:55 AM
BG oil additive
by Brolly
Today at 06:48 AM
Synthetic cold flow test
by Brolly
Today at 02:25 AM
Driving Waco to Springfield, MO
by user52165
Today at 12:40 AM
Newest Members
hbsprite, tomcor, csufl, amatt, turbobooster
64519 Registered Users
Who's Online
102 registered (4WD, Alfred_B, 1JZ_E46, 901Memphis, Alex_V, 9 invisible), 1705 Guests and 98 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64519 Members
68 Forums
280180 Topics
4676879 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4463150 - 07/18/17 06:08 PM Change oil twice after timing cover leak (coolant)
TmanP Offline

Registered: 10/30/15
Posts: 427
Loc: MN
In May, I had to replace the timing cover gasket (and water pump) on my 3.8 due to a coolant leak. My independent mechanic told me that I needed to have him change the oil after this, due to possible coolant contamination. So, I had him do that. Now, the VWB has 750 miles on it and I'm wondering if I need to re-change it ( I was thinking about just siphoning out 4 quarts and leaving the filter) or if it's okay as is. The coolant wasn't necessarily in the oil but there was a chance, as I understand it, that coolant and oil mixed (although the leak was external), and I had no "milkshake" oil. So, I was just wondering whether it should be good, or if there's any value in a change.
2006 Buick Lacrosse 3.8 V6 150,000 mi
2015 Chevy Silverado LT Z71 5.3 V8 30,000 mi
2010 Toyota Sienna 3.5 V6 150,000 mi

#4463153 - 07/18/17 06:12 PM Re: Change oil twice after timing cover leak (coolant) [Re: TmanP]
cjcride Offline

Registered: 11/06/09
Posts: 1775
Loc: Ontario Canada
You are fine. No to change again till next regular change.

Edited by cjcride (07/18/17 06:12 PM)

#4463175 - 07/18/17 06:46 PM Re: Change oil twice after timing cover leak (coolant) [Re: TmanP]
JamesBond Offline

Registered: 12/13/06
Posts: 793
Loc: midwest
For $20 and 1/2 an hour you can change the oil and not have to worry.

#4463179 - 07/18/17 06:51 PM Re: Change oil twice after timing cover leak (coolant) [Re: JamesBond]
demarpaint Offline

Registered: 07/03/05
Posts: 29128
Loc: NY
Originally Posted By: JamesBond
For $20 and 1/2 an hour you can change the oil and not have to worry.

That's what I'd do.
God Bless Our Troops

#4463195 - 07/18/17 07:05 PM Re: Change oil twice after timing cover leak (coolant) [Re: TmanP]
gathermewool Offline

Registered: 01/09/09
Posts: 5743
Loc: New England
It's not Amsoil or some other expensive oil. I'd change the oil and leave the filter. If you've got a Fumoto valve installed it should take all of 5 minutes.

If you'd have to pay someone to do this, I'd wait.
14 Forester XT Touring w/ Eyesight (her)
Castrol Edge 0W-40 + Fram Ultra (FU) filter
15 Legacy Premium w/ Eyesight (me)
Edge 0W-20 + Subie blue filter

#4463239 - 07/18/17 07:59 PM Re: Change oil twice after timing cover leak (coolant) [Re: TmanP]
Merkava_4 Offline

Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
If the mechanic drained the radiator before pulling the timing chain cover, I don't see the issue. Before pulling my intake manifold, I drained the radiator which drained everything else with it. I kept the oil in it because I had some very expensive Valvoline 5W-40 in it with low mileage.

#4463305 - 07/18/17 08:54 PM Re: Change oil twice after timing cover leak (coolant) [Re: TmanP]
CorvairGeek Offline

Registered: 09/07/06
Posts: 107
Loc: Idaho
So much coolant is still trapped in the block with everything removed, (unless you remove the block drains) I would change the oil (cheap insurance). I took the wet/dry vacuum and sucked out coolant from the ports just so it wouldn't weep during this job.

You can still see the coolant standing in the rear of the block. With the main oil galley through the timing cover (left side holes below coolant), it is good to be extra careful with the Buick engine. I was paranoid and even removed the oil pan (shockingly easy).

Edited by CorvairGeek (07/18/17 08:55 PM)