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1998 olds w/V6 3800 motor #4977165 01/12/19 04:27 PM
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Mark72 Offline OP
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I recently acquired a 98 Olds with V6 38000. Has 146000 miles on it. Intake gaskets and valve cover gaskets all new. The engine specs for 10w 30 from 0 degrees and above and 5W30 from 60 degrees and below. Do you think there should be any issue running synthetic in it? My guess is that its had conventional oil up until now.

Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977173 01/12/19 04:37 PM
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Warstud Online Content
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First off....why do you want to use Synthetic ?

Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977178 01/12/19 04:44 PM
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Nickdfresh Offline
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Why not?

Yes, it would be fine with syn. It runs well on anything, I used MaxLife blend a lot on my old one...

Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977192 01/12/19 05:03 PM
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Nick1994 Offline
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If no leaks, Mobil 1 HM 5w30.


2015 Hyundai Sonata 2.4L 102k STP Synthetic HM 10w30 & OEM
2000 Toyota Camry 2.2L 234k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 149k Mobil 1 HM 10w40 & Fram Ultra
Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977194 01/12/19 05:05 PM
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maxdustington Offline
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Pics, please. A thread regarding acquisition of such a forum favorite requires them!


03 Jetta AWP/09A 210k kms
Edge 0W40 + Mann 719/30
Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977197 01/12/19 05:09 PM
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dave1251 Offline
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Anything you use will be an improvement from anything recommended in 1998.


make the inside of your engine oil cap white.
don't use.
Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977223 01/12/19 05:47 PM
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MrMoody Offline
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Best value in a used beater: anything with a 3800 Series II in it. You can buy them for a little of nothing (IMO because they are out of style "grandpa" cars) and they are almost bulletproof. The trans is the weak link. How's yours? Sloppy, slow, inconsistent shifting can usually be cured in the pan with a TransGo kit.

I've been running M1 10W30 in mine for years (but we never get below 0). High Mileage will turn black very quickly if the engine is dirty inside.

Recently the timing cover crank seal has started leaking, which has now destroyed the rubber in the motor mount under it. This is a project for next summer.


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: 1998 olds w/V6 3800 motor [Re: Nickdfresh] #4977225 01/12/19 05:52 PM
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ejes Offline
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Originally Posted by Nickdfresh
Why not?

Yes, it would be fine with syn. It runs well on anything, I used MaxLife blend a lot on my old one...


I did the same with the one I had. It was the perfect oil for it. Stopped up the weeping on the seals pretty much.

Last edited by ejes; 01/12/19 05:54 PM.
Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977249 01/12/19 06:26 PM
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69Torino Offline
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That engine will thrive on anything with a starburst on the bottle. Enjoy the car til the trans dies.


1969 Ford Torino GT 390 Auto
2003 Mercury Marauder
1992 Mercury Capri Convertible
2005 Ford Freestyle
2008 Hyundai Santa Fe
1947 Ford 2N
1978 Honda XL75
Plus Other Stuff...
Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977259 01/12/19 06:40 PM
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Mark72 Offline OP
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Yes..the engine runs and sounds like its brand new. The transmission seems like it has no issues. According to the car facts this car has seen highway most of its life which equates to only 50,000 miles worth of wear really. Car is ugly as [censored] but in mint condition . Only rust is the exhaust and a little on the rails underneath. It's more quiet and comfortable than our 2017 Pacifica

Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977295 01/12/19 07:17 PM
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atikovi Offline
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Originally Posted by Mark72
Only rust is the exhaust and a little on the rails underneath.


On a 20 year old 146,000 mile Illinois car? You haven't looked hard enough.

Re: 1998 olds w/V6 3800 motor [Re: Nickdfresh] #4977341 01/12/19 08:17 PM
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Warstud Online Content
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Originally Posted by Nickdfresh
Why not?


The number 1 reason to use Synthetic is longer OCI. Plus an older car like that may leak after using Synthetic.

Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977367 01/12/19 08:37 PM
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csandste Online Content
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My step son bought a 98 LeSabre for a few hundred a year and a half ago. Had an inoperative blend door which made it pleasant only in spring and fall. That 3800 was a great engine, though. I would think MaxLife 5-30 would be perfect for this car, that weight is a lot better than it was a generation ago.


2017 Kia Soul Plus-- VWB 5w30 65,000 miles
Re: 1998 olds w/V6 3800 motor [Re: atikovi] #4977417 01/12/19 09:36 PM
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69Torino Offline
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Originally Posted by atikovi
Originally Posted by Mark72
Only rust is the exhaust and a little on the rails underneath.


On a 20 year old 146,000 mile Illinois car? You haven't looked hard enough.


Like at the brake and fuel lines. Especially if it has rocker rot. Brake and fuel lines are notoriously troublesome on W-bodies. It’s worth looking at just to be safe.


1969 Ford Torino GT 390 Auto
2003 Mercury Marauder
1992 Mercury Capri Convertible
2005 Ford Freestyle
2008 Hyundai Santa Fe
1947 Ford 2N
1978 Honda XL75
Plus Other Stuff...
Re: 1998 olds w/V6 3800 motor [Re: Mark72] #4977432 01/12/19 09:44 PM
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Posts: 553
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Nitronoise Offline
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wI have a 2000 regal with the LS 67 3800
ryn QS full syn
car has a tune , down pipes qand under driive pulleys so far
I have been known to thrash on it and have had no problems running full syn
car gets parked in the winter as it came from Georgia ,,,
and the trans is is fresh as the overdrive shaft has been known to fail


07 Ford Freestyle 135K
06 Honda Acord EX 115K
04 Hyundai Sonata 290K sold
03 Hyundai Santa Fe 165K
02 Ford Tarus 98K
00 Buick Regal SC 135K
95 Goldwing 28K

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