Recent Topics
Green coolant, future availability ?
by rubberchicken - 11/16/19 06:11 PM
Weird tire wear
by ledslinger - 11/16/19 04:50 PM
Why does Ford resell lemons?
by avacado11 - 11/16/19 04:07 PM
Slow initial response to loading web pages
by JHZR2 - 11/16/19 04:06 PM
Motorcraft FL-910S
by PW01 - 11/16/19 03:54 PM
Walmart ammo clearance
by redbone3 - 11/16/19 03:35 PM
GENERAL Q regarding SPX snow plow
by Kira - 11/16/19 03:13 PM
78 C10 at show
by WiskyBadger - 11/16/19 03:00 PM
300blk ammo?
by buck91 - 11/16/19 02:52 PM
The Rock is still alive!
by Char Baby - 11/16/19 02:48 PM
Weird fuel leak
by BeerCan - 11/16/19 01:02 PM
Sinopec 75w-90 Synthetic
by jdw1222 - 11/16/19 12:51 PM
Honda Oil Filter
by miden851 - 11/16/19 12:28 PM
VOA for QSAD 10w-40?
by natas - 11/16/19 12:02 PM
Ford v Ferrari - anyone seen the movie yet?
by Oro_O - 11/16/19 12:01 PM
who made this??
by ted s - 11/16/19 11:41 AM
Drill Bits
by MasterSolenoid - 11/16/19 11:32 AM
2000 Honda Insight Crunchy 1st & 2nd
by Rmay635703 - 11/16/19 09:32 AM
Update Site to VerticalScope Inc board?
by CB900F2 - 11/16/19 09:27 AM
Newest Members
billad67, aka_Claus, Diverdown, natas, matt3540
69886 Registered Users
Who's Online Now
108 registered members (AC1DD, 4WD, 86lxjunker, Astro_Guy, 77GrandPrix, 14 invisible), 2,084 guests, and 22 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics297,515
Posts5,117,189
Members69,886
Most Online3,589
Nov 2nd, 2019
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
16 y/o car w/98k, switch oil? #5135513 06/16/19 07:13 AM
Joined: Jun 2019
Posts: 7
R
Ricky_Samsonia Offline OP
OP Offline
R
Joined: Jun 2019
Posts: 7
Got my mom's 2003 buick park ave 3.8 base. It has 98k and always dealer serviced with acdelco 5w30 syn-blend. It has no leaks, no smoke.Would it be ok to switch "cold turkey" to M1 10-30 syn HM or does it have too many miles?Or would it work out better to gradually switch to Full-Syn-HM like first change the oil with 3.5 qts of 10-30 Syn-Blend & 1 qt M1 10-30 Syn HM? The oil capacity is 4.5 qts. This is such a good/nice car, I simply don't want to start any crap with this gd engine but on the other hand I would love to get 300k mi with this nice full-size car. 

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135517 06/16/19 07:16 AM
Joined: Jun 2003
Posts: 34,911
E
eljefino Offline
Offline
E
Joined: Jun 2003
Posts: 34,911
Do what you want. You don't have to "train" it on the new oil.

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135525 06/16/19 07:29 AM
Joined: Oct 2004
Posts: 9,603
B
bullwinkle Offline
Offline
B
Joined: Oct 2004
Posts: 9,603
If it's not broken, I wouldn't change it! The 3.8 might be one of the toughest engines GM ever made-I would put more effort into maintaining the transaxle/transmission and Dexcool cooling system if it was mine. You're not in the Rust Belt-it might last the rest of your life!


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135535 06/16/19 07:37 AM
Joined: Dec 2005
Posts: 1,213
C
caprice_2nv Offline
Offline
C
Joined: Dec 2005
Posts: 1,213
This is an engine that's good with extended oci if there ever was one. I've seen one go 50k miles on a conventional bulk oil, just topped up until the oil filter rusted through. It was a taxi, 05 Impala with 200k in it. I drove it for a bit when I tried taxi driving as a second job for a few months. It ran great. Only issue it had with the engine was a starter and a harmonic balancer. It rusted out in the back because of a water leak and got retired early.

You can use whatever oil you want but if you use a full synthetic you can go longer between oil changes and high mileage isn't a bad idea because leaks are likely at this age.


84 Olds Cutlass - 350 Olds
83 Chevy Caprice - 305 Sbc
79 Honda CX500
Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135545 06/16/19 07:47 AM
Joined: Aug 2010
Posts: 6,885
K
Kira Offline
Offline
K
Joined: Aug 2010
Posts: 6,885
Just my 2¢:

As groovy as synthetics are if there's no compelling reason to use a synthetic such as a finicky PCV system or extra hot zones (oil pan near a turbo unit) I'd stick with good mineral based oil at "normal" change intervals.

This is because I'm a fan of "out with the old" regarding engine dirt.

If monitoring your oil is a source of fun then have at IT ALL. Extending oil changes, seeking the best filters etc.

Do remember, switching to synthetics does have that break in period where the car will use some oil. This has been my experience. Someone will be along shortly to state I am nuts....which is completely beside the point.

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135553 06/16/19 07:54 AM
Joined: Dec 2006
Posts: 20,577
A
aquariuscsm Offline
Offline
A
Joined: Dec 2006
Posts: 20,577
All the GM 3.8's we had LOVED Pennzoil products. Ran the smoothest on them. If I'd known more about Quaker State back then that's what I would've used. Since it's already had a partial synth oil,I'd go full synth. QSUD 10W30 with an AC Delco filter would be my choice.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Advanced Durability 10W30

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135562 06/16/19 08:02 AM
Joined: Aug 2016
Posts: 511
C
carviewsonic Offline
Offline
C
Joined: Aug 2016
Posts: 511
I have an '03 Park Ave with 187000 miles. Ran on M1 5-30 at 6000 mile intervals most of it's life, with a lot of cold weather short tripping. Engine runs great, doesn't use oil. But the trans is not doing so well. So, I could have gone with 10000 mile changes, or cheaper conventional oil, would have made no difference to the life of the car. Buy a trans pan with a drain bolt, and do frequent drain and fills.


'18 Impala
'05 Park Avenue
'03 Park Avenue
'07 Honda Accord
'09 VStar 1300
Re: 16 y/o car w/98k, switch oil? [Re: aquariuscsm] #5135563 06/16/19 08:03 AM
Joined: Jun 2019
Posts: 7
R
Ricky_Samsonia Offline OP
OP Offline
R
Joined: Jun 2019
Posts: 7
Thank you!

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135567 06/16/19 08:12 AM
Joined: Oct 2014
Posts: 686
I
Ihatetochangeoil Offline
Offline
I
Joined: Oct 2014
Posts: 686
What elefino said. And you can buy a Transmission pan with a drain plug here: https://zzperformance.com/collections/3800/Transmission-&-drivetrain#productOutput I change my Trans. fluid ~30-50K intervals. A shifft kit will abolish the 2nd-3rd gear sluggishness.

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135570 06/16/19 08:17 AM
Joined: Sep 2018
Posts: 467
MrMoody Online Sleepy
Online Sleepy
Joined: Sep 2018
Posts: 467
Take my advice from a high mile 3800 owner: if it doesn't leak oil, don't put HM oil in it. Scoffers gonna scoff but don't do it. There's nothing magic about the stuff for high mile engines other than the seal "conditioner." Regular M1 10W30 is perfect.

As said, the trans is the bigger worry. It needs fluid changed every 30K. If it's neglected, it will start being sluggish, banging and slipping. And if it has the plastic coolant elbows at the belt tensioner, they will crack and leak if they haven't already. Replace with metal ones.


2018 Hyundai Kona 1.6T DCT
2006 Pontiac (Holden) GTO AT
2001 Pontiac Grand Prix GT 3.8 NA (beater)
2005 Toyota Matrix FWD (ultra beater)
"Fob" and "Noack" are not acronyms.
Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135620 06/16/19 09:37 AM
Joined: Feb 2014
Posts: 3,451
Marco620 Offline
Offline
Joined: Feb 2014
Posts: 3,451
Just go with Quaker Statd HM or Maxlife and be done. The interior and transmission are gonna be your biggest worry.


15' Civic 1.8 i-vtec 288,000 mi Motul 0w30 & LG Biotech, BP CVT Fluid,Redline Si-1
Doberman Whisperer!
Honda,Doberman,CZ's & SONY Aficionado

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135669 06/16/19 10:40 AM
Joined: Dec 2016
Posts: 9,589
L
Linctex Offline
Offline
L
Joined: Dec 2016
Posts: 9,589
Originally Posted by Ricky_Samsonia
Got my mom's 2003 buick park ave 3.8 base. It has 98k and always dealer serviced  


Am I experiencing Deja Vu here?


"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: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135678 06/16/19 10:54 AM
Joined: Sep 2005
Posts: 6,771
W
Warstud Online Content
Online Content
W
Joined: Sep 2005
Posts: 6,771
This should be in the " Passenger Car Motor Oil (PCMO) - Gasoline Vehicles Forum"

Re: 16 y/o car w/98k, switch oil? [Re: Ricky_Samsonia] #5135681 06/16/19 10:59 AM
Joined: Dec 2006
Posts: 20,577
A
aquariuscsm Offline
Offline
A
Joined: Dec 2006
Posts: 20,577
My dad's 1990 Olds Delta 88 had almost 600,000 miles on it before he gave it away when he got a new vehicle. All on PYB 10W30 every 3000 miles. The exterior looked like an almost 600K car but the interior still was mint. It went to around 450K on the original transmission.

Back when my gf had a 1998 Olds 88,I tried M1 10W30 in it,and it ran rough and noisy,especially at startup. That's the first time I ever in my life heard a GM 3.8 tick upon startup. Went back to PYB and it was smooth and silent again.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Advanced Durability 10W30

Re: 16 y/o car w/98k, switch oil? [Re: aquariuscsm] #5135693 06/16/19 11:30 AM
Joined: Aug 2008
Posts: 2,708
Malo83 Offline
Offline
Joined: Aug 2008
Posts: 2,708
If it ain't broke. cheers

Page 1 of 2 1 2
Previous Thread
Index
Next Thread

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