Help Help Help!!!!!!!!!
Thread Starter
Intermediate
Joined: Aug 2011
Posts: 26
Likes: 0
Help Help Help!!!!!!!!!
Hi Guys,
I took your advices and put Mobil1, but 0w-40 that's what they sell here. I raced today and I saw a blue smoke when I looked the rear window, so is that ok????(when you accelerate)
Although,i just overhall the engine (Stock LS6 pistons with rings, mean and connecting bearings, bush camshaft, oil bump, and modify the stock heads by widening the rooms)
Thank's
I took your advices and put Mobil1, but 0w-40 that's what they sell here. I raced today and I saw a blue smoke when I looked the rear window, so is that ok????(when you accelerate)
Although,i just overhall the engine (Stock LS6 pistons with rings, mean and connecting bearings, bush camshaft, oil bump, and modify the stock heads by widening the rooms)
Thank's
Le Mans Master
Joined: Dec 2005
Posts: 8,524
Likes: 914
From: Communist Colorado
Hi Guys,
I took your advices and put Mobil1, but 0w-40 that's what they sell here. I raced today and I saw a blue smoke when I looked the rear window, so is that ok????(when you accelerate)
Although,i just overhall the engine (Stock LS6 pistons with rings, mean and connecting bearings, bush camshaft, oil bump, and modify the stock heads by widening the rooms)
Thank's
I took your advices and put Mobil1, but 0w-40 that's what they sell here. I raced today and I saw a blue smoke when I looked the rear window, so is that ok????(when you accelerate)
Although,i just overhall the engine (Stock LS6 pistons with rings, mean and connecting bearings, bush camshaft, oil bump, and modify the stock heads by widening the rooms)
Thank's
Good Luck!
Le Mans Master
Joined: Dec 2005
Posts: 8,524
Likes: 914
From: Communist Colorado
Im not 100 % sure on yje LS engines, but I remember regular SBC engines needing right around there (500 miles)... for break in. Only other thing I can think would be valve guides maybe...
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
The engine calls for 5W-30 Mobil One so why are you using 0W-40? When they/you rebuilt, did they/you use the correct tool to install the valve stem seals?
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Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 326
From: CA.
St. Jude Donor '13-'14-'15
0W-40 ?? Zero weight motor oils are used by racing teams in Nascar for QUAILFYING ONLY-- and not during the race----I suspect the seller bought it cheap and are finding reasons to sell it to people--
I would Not run it while racing---I hate to be pesimistic but blue smoking is not good---you may have ruined it !!! a little smoking on a new engine is normal at 1st---but un noticeable really and more of a white color--But if you can actually SEE blue smoke---I think it's gone beyond break-in smoke-- IMHO
I would Not run it while racing---I hate to be pesimistic but blue smoking is not good---you may have ruined it !!! a little smoking on a new engine is normal at 1st---but un noticeable really and more of a white color--But if you can actually SEE blue smoke---I think it's gone beyond break-in smoke-- IMHO
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
0w40 is fine, that is all I run. It is great oil for starts and will serve you well in the high Kuwait heat. Whomever says otherwise doesn't know how multi-weight oil works.
As far as the blue smoke, it will probably go away once the motor wears in. If not I would suspect the valve seals. With that being said, I dont think I've ever seen a Z that didn't beltch a little blue when driven hard.
As far as the blue smoke, it will probably go away once the motor wears in. If not I would suspect the valve seals. With that being said, I dont think I've ever seen a Z that didn't beltch a little blue when driven hard.
Tech Contributor
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
Might want to take it easy on the racing until the motor is broken in...
Are we talking about a THICK cloud of blue smoke or just a little residual smoke? If it's really thick it's worth looking into, if it's just a little smoke I don't think it's anything to worry about. If it persists take it back to the shop where the build was done and ask for an explanation/resolution.
Is this a fresh motor or a reconditioned one? If it's new, or if they did any porting or honing (sounds like they did based on your original post) on an old one I'd recommend doing your first oil change after 500 - 1000 miles to get rid of all the little metal burrs and rough parts that will be sheared off and floating in your oil pan...
And I only run 5W30 in mine but I would probably look for something a little heavier like 0W40 if I lived somewhere as consistently hot as Kuwait. GL
Are we talking about a THICK cloud of blue smoke or just a little residual smoke? If it's really thick it's worth looking into, if it's just a little smoke I don't think it's anything to worry about. If it persists take it back to the shop where the build was done and ask for an explanation/resolution.
Is this a fresh motor or a reconditioned one? If it's new, or if they did any porting or honing (sounds like they did based on your original post) on an old one I'd recommend doing your first oil change after 500 - 1000 miles to get rid of all the little metal burrs and rough parts that will be sheared off and floating in your oil pan...
And I only run 5W30 in mine but I would probably look for something a little heavier like 0W40 if I lived somewhere as consistently hot as Kuwait. GL
Last edited by cdkcorvette7; Aug 13, 2011 at 10:17 PM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You probably still have a little extra blow by and have a little oil being ingested thru the intake manifold from the PCV system. Try a catch can. Its inexpensive and may help. It did o my 06 Coupe!
0W-40 is great oil for your area!,
Keep us posted on the outcome.
BC
0W-40 is great oil for your area!,
Keep us posted on the outcome.
BC
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 326
From: CA.
St. Jude Donor '13-'14-'15
0w40 is fine, that is all I run. It is great oil for starts and will serve you well in the high Kuwait heat. Whomever says otherwise doesn't know how multi-weight oil works.
As far as the blue smoke, it will probably go away once the motor wears in. If not I would suspect the valve seals. With that being said, I dont think I've ever seen a Z that didn't beltch a little blue when driven hard.
As far as the blue smoke, it will probably go away once the motor wears in. If not I would suspect the valve seals. With that being said, I dont think I've ever seen a Z that didn't beltch a little blue when driven hard.
Blue smoke OK ? May need new valve seals ?? Has everyone forgotten this is a fresh rebuild ??? A little smoke during break in is OK but after that you should NOT have any white or worst of all blue smoke--
I guess everyone has their own opinion----But my experience after 23 years of racing---is that when or if it starts to smoke blue or white--make an appointment at the machine shop---LOL
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
You probably still have a little extra blow by and have a little oil being ingested thru the intake manifold from the PCV system. Try a catch can. Its inexpensive and may help. It did o my 06 Coupe!
0W-40 is great oil for your area!,
Keep us posted on the outcome.
BC
0W-40 is great oil for your area!,
Keep us posted on the outcome.
BC
Bill is right! It's definitely not your choice of oil that's causing the smoke.
The 40 weight viscosity oil, at operating temperatures, is a good choice for racing use in your hot climate area.
