Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:
View Poll Results: 5w30, 10w30, or Other???
5w30
23
45.10%
10w30
21
41.18%
Other - please list in thread
7
13.73%
Voters: 51. You may not vote on this poll

5x30 or 10w30 or other?

Thread Tools
 
Search this Thread
 
Old Oct 28, 2007 | 09:41 PM
  #1  
CaMaRo67RS355's Avatar
Thread Starter
TECH Addict
iTrader: (75)
 
Joined: Apr 2005
Posts: 2,578
Likes: 0
From: Rock Hill, South Carolina
Question 5x30 or 10w30 or other?

just wondering whats the best weight of oil to run with our LS engines.
Reply
Old Oct 28, 2007 | 09:50 PM
  #2  
Soul TKR's Avatar
TECH Junkie
iTrader: (4)
 
Joined: Jun 2004
Posts: 3,543
Likes: 2
From: San Diego, CA
Default

got 118k on the clock... i run Mobil 1 10w30 Extended Performance... expensive, but great oil...
Reply
Old Oct 28, 2007 | 09:55 PM
  #3  
RareBreed0295's Avatar
TECH Resident
iTrader: (35)
 
Joined: Oct 2007
Posts: 789
Likes: 0
From: Bishopville, SC
Default

I run the Mobil 1 10w30 as well. No complaints except kinda pricey.
Reply
Old Oct 28, 2007 | 10:15 PM
  #4  
ls1adamls1's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: May 2007
Posts: 505
Likes: 0
From: san jose, ca
Default

i run mobile 1 0w40, increases oil pressure, and mobile 1 runs thin.
Reply
Old Oct 28, 2007 | 10:24 PM
  #5  
CETA_TransAm's Avatar
Banned
iTrader: (1)
 
Joined: Oct 2007
Posts: 234
Likes: 0
Default

i use 5w 30 sometimes and 10w 40 sometimes i never notice a difference
Reply
Old Oct 29, 2007 | 12:26 PM
  #6  
blksheep's Avatar
12 Second Club
iTrader: (3)
 
Joined: Sep 2006
Posts: 171
Likes: 0
From: Greenville, NC
Default

i use valvoline 10w30 synthetic. with 5w30 i noticed lifter tick when hot, with the 10w30 its quieter...
Reply
Old Oct 29, 2007 | 08:15 PM
  #7  
Higgs Boson's Avatar
10 Second Club
15 Year Member
iTrader: (3)
 
Joined: Sep 2007
Posts: 367
Likes: 2
From: Texas Hill Country
Default

I run Mobil 1 0W30. 0 for minimal resistance to flow at startup (most damaging time for a running engine) and 30 weight for factory spec at operating temp.

and to the guy who wants to increase pressure, you do realize that pressure is only resistance to flow, right? I want my oil to flow. I don't want more oil pressure.
Reply
Old Oct 29, 2007 | 11:06 PM
  #8  
ls1adamls1's Avatar
TECH Enthusiast
iTrader: (9)
 
Joined: May 2007
Posts: 505
Likes: 0
From: san jose, ca
Default

well i was running 30 weight oil before, and was too thin. the 40 weight seems to be good, and like i said mobile 1 is runs thin, so a 40 weight is like a 30. just my opinion.

and i want my engine lubricated, i dont want the oil to just run through the engine.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Oct 30, 2007 | 01:33 AM
  #9  
TXZ28LS1's Avatar
TECH Senior Member
iTrader: (5)
 
Joined: Mar 2004
Posts: 6,163
Likes: 3
From: Classified
Default

im running castrol syntec 5W-40!! good stuff. no oil consumption, good oil pressure.
Reply
Old Oct 30, 2007 | 10:56 AM
  #10  
Higgs Boson's Avatar
10 Second Club
15 Year Member
iTrader: (3)
 
Joined: Sep 2007
Posts: 367
Likes: 2
From: Texas Hill Country
Default

Originally Posted by ls1adamls1
well i was running 30 weight oil before, and was too thin. the 40 weight seems to be good, and like i said mobile 1 is runs thin, so a 40 weight is like a 30. just my opinion.

and i want my engine lubricated, i dont want the oil to just run through the engine.
how did you determine it was too thin? by touching it? do you think that oil running through an engine means that it is not getting lubricated? where do you come up with this stuff?
Reply
Old Oct 30, 2007 | 11:34 AM
  #11  
99FormulaM6's Avatar
TECH Junkie
20 Year Member
Photogenic
iTrader: (21)
 
Joined: Aug 2004
Posts: 3,162
Likes: 0
From: Virginia Beach, VA
Default

Originally Posted by Higgs Boson
how did you determine it was too thin? by touching it? do you think that oil running through an engine means that it is not getting lubricated? where do you come up with this stuff?
there have been TONS of threads about this topic, just search and you will find your answer. M1's 30 weight is at the 'bottom of the barrel' compared to other 30 weight oils. So, instead of running M1 0w30 and being closer to a 20 weight oil, I (and alot of other people) run M1's Euro formula, which is a 0w40 oil and although its a 40 weight, its closer to a better 30 weight oils.

Do a search for Patman's posts about oil, or bobistheoilguy.com (i think that is the website) is a good place to go to.
Reply
Old Oct 30, 2007 | 11:35 AM
  #12  
FadedSS's Avatar
TECH Enthusiast
iTrader: (15)
 
Joined: Mar 2007
Posts: 605
Likes: 0
From: San Jose, CA
Default

mobil 1 0-40 here as well. refer to 99formula's post above for explanation^^^
Reply
Old Oct 30, 2007 | 05:10 PM
  #13  
Higgs Boson's Avatar
10 Second Club
15 Year Member
iTrader: (3)
 
Joined: Sep 2007
Posts: 367
Likes: 2
From: Texas Hill Country
Default

Originally Posted by 99FormulaM6
there have been TONS of threads about this topic, just search and you will find your answer. M1's 30 weight is at the 'bottom of the barrel' compared to other 30 weight oils. So, instead of running M1 0w30 and being closer to a 20 weight oil, I (and alot of other people) run M1's Euro formula, which is a 0w40 oil and although its a 40 weight, its closer to a better 30 weight oils.

Do a search for Patman's posts about oil, or bobistheoilguy.com (i think that is the website) is a good place to go to.
why doesn't mobil one just call it a 20 weight then?
Reply
Old Oct 30, 2007 | 07:07 PM
  #14  
99FormulaM6's Avatar
TECH Junkie
20 Year Member
Photogenic
iTrader: (21)
 
Joined: Aug 2004
Posts: 3,162
Likes: 0
From: Virginia Beach, VA
Default

Originally Posted by Higgs Boson
why doesn't mobil one just call it a 20 weight then?
don't ask me, I don't work for M1...

you just need to do some searching, and you will see that its been talked about alot.
Reply
Old Nov 1, 2007 | 09:17 AM
  #15  
Higgs Boson's Avatar
10 Second Club
15 Year Member
iTrader: (3)
 
Joined: Sep 2007
Posts: 367
Likes: 2
From: Texas Hill Country
Default

Originally Posted by 99FormulaM6
don't ask me, I don't work for M1...

you just need to do some searching, and you will see that its been talked about alot.
Sounds like I can search and find people talking about it and still not find an answer since no one "works for M1." Why do a wild goose chase when the answer I want doesn't exist? Lots of specualtion and bullshit on the Internet, especially regarding oil. I'm not digging through it. There's no prize inside the muck.
Reply
Old Nov 2, 2007 | 09:48 AM
  #16  
Blacker's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2003
Posts: 1,670
Likes: 1
From: Austin, Texas
Default

I just switched over from Mobil 1 10w-30 to Castrol Syntec GC 0w-30.
Reply
Old Nov 2, 2007 | 11:50 AM
  #17  
99FormulaM6's Avatar
TECH Junkie
20 Year Member
Photogenic
iTrader: (21)
 
Joined: Aug 2004
Posts: 3,162
Likes: 0
From: Virginia Beach, VA
Default

Originally Posted by Higgs Boson
Sounds like I can search and find people talking about it and still not find an answer since no one "works for M1." Why do a wild goose chase when the answer I want doesn't exist? Lots of specualtion and bullshit on the Internet, especially regarding oil. I'm not digging through it. There's no prize inside the muck.
why don't you check out bobistheoilguy.com and check out some of the oil analysis'? Or find another forum or website that does oil analysis reviews. Or you can live in the dark and use the oil that GM tells you to use. It doesn't matter to me much, I was just giving the OP information that he asked for.
Reply
Old Nov 2, 2007 | 12:18 PM
  #18  
Higgs Boson's Avatar
10 Second Club
15 Year Member
iTrader: (3)
 
Joined: Sep 2007
Posts: 367
Likes: 2
From: Texas Hill Country
Default

Originally Posted by 99FormulaM6
why don't you check out bobistheoilguy.com and check out some of the oil analysis'? Or find another forum or website that does oil analysis reviews. Or you can live in the dark and use the oil that GM tells you to use. It doesn't matter to me much, I was just giving the OP information that he asked for.
I don't think GM recommends 0 weight for any brand. So I am rebelling just like you! Woohoo! Anyways, the bottom line, for me, is that it doesn't make any damn difference what oil you use as long as you are close to what's original. Brand doesn't matter and neither does 0, 5, or 10 for cold weight. 30 or 40 and in some cases 50 is ok for hot. I don't need any oil analysis for me to know that I have used tons of different oils and none of them made any difference for power or longevity. It's a stupid conversation to begin with.
Reply
Old Nov 2, 2007 | 01:50 PM
  #19  
silverTA2002's Avatar
12 Second Club
iTrader: (1)
 
Joined: May 2005
Posts: 684
Likes: 0
From: Bradenton, FL
Default

German Castrol 0w30
Reply
Old Nov 3, 2007 | 01:34 AM
  #20  
johnLs1camaro's Avatar
TECH Fanatic
iTrader: (28)
 
Joined: Nov 2006
Posts: 1,757
Likes: 4
From: NA,Indiana/louisville, ky
Default

i dont use anything but royal purple love it but in the winter 5w-30 and summer 10w-30
Reply



All times are GMT -5. The time now is 02:23 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE