Synthetic VS. Regular oils - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-12-2007, 10:36 PM   #1
Senior Member
True Car Nut
Thread Starter
 
Join Date: Feb 2005
Location: Brampton, Ontario
Posts: 3,014
Thanks: 0
Thanked 0 Times in 0 Posts
Maymybonnieliveforevr is on a distinguished road
Default Synthetic VS. Regular oils

I'm not going to get into a debate about the advantages of one vs. the other, but I have I always thought that synthetic oil is good for minimizing friction thus making the engine last longer due to less worn parts. I have to tell ya, I finally decided that the 90 SSE that I had needed a rest even though it had approximately 500,000 kilometers on it and the engine was still running strong and I never once used synthetic oil in it. I feel the key is plain and simple regular oil changes. I don't see the added expense in synthetic oils...... that my opinion only but let the flames begin!
Maymybonnieliveforevr is offline   Reply With Quote
Old 03-12-2007, 10:38 PM   #2
Sol
Senior Member
True Car Nut
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default

I've always been under the impression that synthetic can take more heat and abuse. Therefore, if one races their car(*) or drives very spirited, synthetic is a good thing to use.

I know 3800'* are oil friendly, but other engines that are not should benefit from synthetic.
Sol is offline   Reply With Quote
Old 03-12-2007, 10:47 PM   #3
Senior Member
Posts like a Camaro
 
Join Date: Jan 2007
Location: Detroit MI,
Posts: 926
Thanks: 0
Thanked 0 Times in 0 Posts
BonnevilleLErocks is on a distinguished road
Default

No flames here, I agree with you. I just changed my oil and I had the same debate, but when I saw one bottle of Synthetic was 5 bucks versus the other dyno juices (as I heard some of you call it), I can't afford that lol.


However I did add some of this with the oil...

http://www.stp.com/oil_oil.html
BonnevilleLErocks is offline   Reply With Quote
Old 03-12-2007, 11:10 PM   #4
Senior Member
Posts like a Corvette
 
Join Date: Mar 2005
Location: Frederick, Maryland
Posts: 1,441
Thanks: 0
Thanked 0 Times in 0 Posts
VigCS is on a distinguished road
Default

From my understanding Synthetic oil won't make much of a difference in an engine thats been run on regular since it was new. I've heard that it does wonders for rear ends, transmissions, etc. I run GM Synchromesh Synthetic in my trans and Royal Purple Synthetic in the rear.
VigCS is offline   Reply With Quote
Old 03-12-2007, 11:54 PM   #5
Member
Posts like a V-Tak
 
Join Date: Dec 2006
Posts: 67
Thanks: 0
Thanked 0 Times in 0 Posts
95LHS is on a distinguished road
Default

Quote:
Originally Posted by VigCS
From my understanding Synthetic oil won't make much of a difference in an engine thats been run on regular since it was new.
That'* basically a myth.

Now, I'm no expert, but from my reading into the topic:

Synthetics are more robust, and better at handling heat and wear.
Synthetics are typically good for longer drain intervals than conventional.

Now, with all due respect I've found that one of the biggest sources of misinformation about motor oil is on "car forums". It'* just a rare thing to come across an oil expert, and myth and outdated wisdom often takes the place of informed observation. Heck, if I didn't know better I'd think that Mobil 1 was the best oil money could buy and that oil change intervals over 3,000 miles are heresy. (Again, not pointing out this board in particular, I've seen it on the Intrepid boards too)

For anyone interested in further reading, I suggest you check out www.bobistheoilguy.com. Some of these guys live and breathe something we regard as routine maintenance, and there'* a lot to be learned.
95LHS is offline   Reply With Quote
Old 03-13-2007, 12:00 AM   #6
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Twin Falls, Idaho
Posts: 7,545
Thanks: 0
Thanked 1 Time in 1 Post
Hans is on a distinguished road
Default

I agree completely, there is no need to waste money on synthetic oil on our cars.

I do however run synthetic blend on mine just for good measure in case i forget to change it every 3000 mies.

With synthetic you can go longer without oil changes, but I prefer to change my oil often, I still think its better that way.

Lets compare the average cost per oil change with synthetic and regular cheap walmart brand oil. the difference is huge, you would have to go 12,000 miles between oil changes to make it worth it. and I would not reccomend that.
Hans is offline   Reply With Quote
Old 03-13-2007, 06:22 AM   #7
Senior Member
Posts like a Camaro
 
Join Date: Dec 2005
Location: Clovis, CA
Posts: 851
Thanks: 0
Thanked 0 Times in 0 Posts
MACDRIVE is on a distinguished road
Default

I've been real happy with Maxlife 10W-30 in mine. Engine runs quiet and responsive.

FYI - Maxlife is 12-22% polyalphaolifin; the real synthetic, not Group III.
MACDRIVE is offline   Reply With Quote
Old 03-13-2007, 07:30 AM   #8
Senior Member
True Car Nut
 
Join Date: Aug 2003
Location: Salina, KS
Posts: 5,246
Thanks: 0
Thanked 0 Times in 0 Posts
TrueWildMan is on a distinguished road
Default

I've run synthetic because of the unique formulation, and it'* reputation to take abuse.

Also, if nothing else, I use it to help reduce our dependency on oil in general.
TrueWildMan is offline   Reply With Quote
Old 03-13-2007, 01:17 PM   #9
Senior Member
True Car Nut
 
Join Date: Feb 2006
Location: Somewhere different on the globe every month....
Posts: 2,896
Thanks: 0
Thanked 0 Times in 0 Posts
Cheetah is on a distinguished road
Default

Synthetic oil will not burn up in the combustion chamber when the car is shut off. In high heat and frequent starting and shutting off the engine, this can signafantly prolong the engine life.
Cheetah is offline   Reply With Quote
Old 03-13-2007, 01:40 PM   #10
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

I won't pick out any certain synthetic and say one is better than the other...

I have used Mobil 1 for a long time... My dad did as well..

I even use it in the Lawn Mower... Mower runs easier and the heat does not seem to bother it like it did with the SAE 30...

But lets understand that the Buick engines, say the LG3, LN7, LN3, L27,L67 L36 and the like are not hard on oil

The LN3 3800 starting in 88 was actually one of the lowest friction engines of the time... Even on Dino they will run forever if you change the oil... But I would still recommend Synthetic unless you are a freak about oil changes and do it every month...

I ran from August to the end of February On my Mobil one... In my case it was worth the extra protection and longevity

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Motor Oils and Oil Filters xtremerevolution General GM Chat 13 02-25-2011 05:05 PM
oils pressure dropping chuckj15 1992-1999 12 10-16-2006 01:08 PM
Mobil 1 High Endurance Oils big_news_1 Performance, Brainstorming & Tuning 22 02-21-2005 06:54 PM
Been asked a million times..need an opinion..synthetic oils vital49 Lounge 10 11-04-2004 11:31 AM
regular, mid-grade or premium ? suprrbonne General GM Chat 41 07-16-2003 05:07 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:27 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.