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#1 |
HERE.......Somewhere
Join Date: Oct 2006
Location: Birmingham AL
Posts: 2,488
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The oil is already black as smut, and I had the motor rebuilt over the summer. Should I change the oil or what???
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Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 ![]() ![]() Classics make it possible! |
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#2 |
yes, i do
Join Date: Jun 2007
Location: Spokane, wa
Posts: 2,734
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Re: The oil is not even 3,000 miles
well it is going to depend on a couple of things. but yes i would change the oil. how long has your truck been sitting?? one thing that i would do if you don't drive it that much is go out like once every two weeks and run her for about 20 minutes or so just to keep the fluids flowing. with most conventional oils, they degrade with just sitting as well as running. synthetics usually don't degrade and turn black with just sitting in the motor.
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ERROR 404....... SNAPPY COMEBACK NOT FOUND ![]() _______________________________________________________________________________________________ -60 Chevy C10, dead 350/good th350 combo, sitting on a 76 c10 blazer frame, built from 11 different vehicles "the abomination" -07 gmt900 silverado 1500 lt xcab z71, granite blue -81 suzuki gs650g "shelah"- current project -81 kz1000m1 csr "sarge" -next project (just beautification) -07 kawasaki vulcan classic vn900 |
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#3 | |
HERE.......Somewhere
Join Date: Oct 2006
Location: Birmingham AL
Posts: 2,488
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Re: The oil is not even 3,000 miles
Quote:
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Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 ![]() ![]() Classics make it possible! |
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#4 |
WTB this ad
Join Date: Sep 2004
Location: Lafayette Georgia
Posts: 5,074
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Re: The oil is not even 3,000 miles
Oil is cheap compared to engines. Just change it.
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#5 |
yes, i do
Join Date: Jun 2007
Location: Spokane, wa
Posts: 2,734
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Re: The oil is not even 3,000 miles
i don't know the quality of halvaline, but what i use in all of my stuff is mobil1 clean 5000. my dad recommended it to me and have been using it ever since. when i pulled the pan on my 60, there wasn't any sludge build at all. i think 10w40 is a little too heavy for a fresh motor. 10w30 should work out just fine.
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ERROR 404....... SNAPPY COMEBACK NOT FOUND ![]() _______________________________________________________________________________________________ -60 Chevy C10, dead 350/good th350 combo, sitting on a 76 c10 blazer frame, built from 11 different vehicles "the abomination" -07 gmt900 silverado 1500 lt xcab z71, granite blue -81 suzuki gs650g "shelah"- current project -81 kz1000m1 csr "sarge" -next project (just beautification) -07 kawasaki vulcan classic vn900 |
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#6 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: The oil is not even 3,000 miles
your oil will be black, period.
I would be more concerned if it wasn't... that would mean all the crap is in the engine. Don't use a crap filter... get a good one. |
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#7 | |
Old Skool Club
![]() Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: The oil is not even 3,000 miles
Quote:
![]() Oil that doesn't get dirty, isn't containing the contaminants that get into the oil. The oil companies go to a lot of "trouble" to create oils that will grab onto and hold those contaminants in suspension, which causes oil to "get dirty". Detergents in the oil are what cleans the inside of the engine. Condensation and fuel that washes past the rings are part of what contributes to the dirty oil we see, along with the dirt that is within the air that the engine moves around inside the block. Oh, you didn't realize that an internal combustion engine is just a big air pump? The air filters are supposed to reduce the airborne contaminants, but they don't totally eliminate them. The PCV valve, in conjuntion with that funky little filter associated with the crankcase ventilation system, allows for that air to infiltrate the crankcase, where (hopefully) the oil WILL grab onto and suspend that "dirt" until your next oil change. Short trips, like those of 10 miles or less, don't allow the engines to warm sufficiently to allow the condensation to evaporate completely. Hope I didn't bore you too much.
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Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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#8 | ||
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: The oil is not even 3,000 miles
Quote:
Quote:
If you are using a K&N air filter you will get more dirt than usual…..specially if you drive on dirt roads. You can send you oil in for analysis and see exactly what is wrong with it. Otherwise its just speculation on what is going on. I use Blackstone, there kit is free and the test is reasonable. s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#9 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: The oil is not even 3,000 miles
The oil is not even 3,000 miles??? Did you change it since the rebuild?Should have at least by 500 miles.If it`s been since summer it would be black by now that`s for sure.One thing that will break oil down faster than miles ran is high revving such as when doing burnouts...The 3,000 mile recommendation is for "normal" driving.That figure gets decreased by multiple variables.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 12-31-2007 at 03:28 PM. |
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#10 |
Senior Member
![]() Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,234
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Re: The oil is not even 3,000 miles
did you change it after 500 miles use a good filter i run puraltor filters or ac delco wix and napa are also good, i mosty run the puraltor filters. run something like 10w30 mobil drive clean or gastol gtx
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube Last edited by truckdude239; 12-31-2007 at 05:47 AM. |
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#11 |
mini truck racer
Join Date: Aug 2006
Location: Baytown , texas
Posts: 3,010
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Re: The oil is not even 3,000 miles
My engine builder gives everyone he machines a motor for a tube of the black moly assembly lube with the newly machined parts . If your engine builder used this when he assembled it then that may be what you see . That stuff stick around for a while . I installed the rear seal backwards on one motor and had to drop the pan . That black assembly lube was at the bottom of the pan .
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#12 |
HERE.......Somewhere
Join Date: Oct 2006
Location: Birmingham AL
Posts: 2,488
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Re: The oil is not even 3,000 miles
I used the most expensive napa oil filter, the color was black, I don't know what that one is, and I changed the oil 2 or 3 months back. My uncle said dumb a double s, why aren't you keeping up with the miles? I asked him what did he mean, he said you drove all over whiteville, to work, to wilmington, and not to mention all the driving you did while you were up there. I did not know that I should have changed the oil at 500 miles, I never ever heard anyone say that it should have been changed at 500 miles. I hope I did not mess up the motor? did I?
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Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 ![]() ![]() Classics make it possible! |
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#13 | |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: The oil is not even 3,000 miles
Quote:
FWIW NAPA filters are WIX. It a good one to use IMO. The reason to change the oil so soon is to remove the breaking lube & any metal that is in oil from the break in. Isn't it recommended you change the oil after the 20min cam break-in? s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() Last edited by Sport/Truck; 12-31-2007 at 07:10 AM. |
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#14 |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: The oil is not even 3,000 miles
Its a small block Chevy --- you shouldn't have messed it up too bad by going past 500 at break in.
But now you know the guidelines so it wont happen again. Its pretty normal for oil to be black after 3000 miles too - no big deal - just change it and the filter and drive on
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Are you retired too? Nonsense! I'm in my prime |
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#15 |
HERE.......Somewhere
Join Date: Oct 2006
Location: Birmingham AL
Posts: 2,488
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Re: The oil is not even 3,000 miles
When I was little all my dad would buy was halvoline oil, and fram air, oil, and fuel filters for the car and his 70 GMC.
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Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 ![]() ![]() Classics make it possible! |
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#16 |
Registered User
Join Date: Oct 2000
Location: Abilene Texas
Posts: 1,756
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Re: The oil is not even 3,000 miles
70'GMC, What are they teaching you in the AutoTech class?
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Robert Member 1532 Last edited by 90\87Formula; 12-31-2007 at 07:28 AM. |
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#17 |
HERE.......Somewhere
Join Date: Oct 2006
Location: Birmingham AL
Posts: 2,488
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Re: The oil is not even 3,000 miles
Engine theory, and something about the electrical wires fuses, etc., etc. Then something about hooking stuff up to a computer and diagnosing the problem.
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Current rides: 2013 Hyundai elantra gt DD 1995 camaro my first crush lmao Was: 1970 ![]() ![]() Classics make it possible! |
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#18 |
Account Suspended
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,815
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Re: The oil is not even 3,000 miles
I was the same way on Valvoline and Fram - unfortunately, both have proven to be less than optimum choices for our trucks. WIX/NAPA filters for sure, and an oil with a higher ZDDP content is highly recommended (see other threads on this)
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#19 |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: The oil is not even 3,000 miles
oil is oil, just keep it fresh and topped up. There are variances in filter quality, so it pays to spend the extra .50 for a good brand -- but even the cheap house brand oils are miles ahead of oils used when your truck was new.
At least thats what i was taught in A&P school, - and concerning engines with consequences much more dire than just being stranded if they fail
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Are you retired too? Nonsense! I'm in my prime |
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#20 | |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: The oil is not even 3,000 miles
Quote:
I wonder what they would say if you put in Flag non-detergent oil, or a recycled oil of some type? – they are all the same….. s/t
__________________
1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#21 | |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: The oil is not even 3,000 miles
Quote:
Ask a crop duster or a member of the CAP--- you would be shocked ------ IT JUST DOESNT MATTER ------ as long as its fresh and topped up and as long as you don't mix synthetic with mineral. Viscosities mix readily ------- Auto people lay much more importance on this b-s than av people ---- but i'm talking about people who use their planes hard, not folks with a Pitts Special who uses it 10 hours a month. A plane is a big investment, and many people rightfully treat their investment like i would treat a Lotus -- but in either case, its not totally necessary , but owners do what owners do
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Are you retired too? Nonsense! I'm in my prime Last edited by streetstar; 12-31-2007 at 07:17 PM. |
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#22 | |
Registered User
Join Date: Mar 2006
Location: Kansas
Posts: 865
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Re: The oil is not even 3,000 miles
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#23 | |
Account Suspended
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,815
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Re: The oil is not even 3,000 miles
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#24 | |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: The oil is not even 3,000 miles
Quote:
Most people would use only the best i agree, -- when you have 75 - 200k (or more) investment - $100 for a case of oil is no big deal -- but not all My father worked for the FAA for 30 years as a field safety investigator. I worked as an apprentice doing the same before settling down at Cessna in their experimental department. Part of the job with the FAA is dealing with the low budget operators(cropdusters, CAP people, low budget cargo operators) and type certifying home builts and things like that. In that environment you see anything and everything and you quickly learn there is more out there than hobbyists with their Mooneys and Bonanzas sitting in brightly lit hangars with checkerboard floors. In the experimental dept., we tried everything in a somewhat controlled setting to get planes to fail as well in both static and flight tests I haven't seen it all, but i have seen a wide range of oddball setups (the worst is the crop dusting field -- where a plane is regarded as a tool, no more or no less important than a tractor) I have as much respect for a horizontally opposed Lycoming 4 or Continental 6 in the durability department as i do any small block chevrolet
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Are you retired too? Nonsense! I'm in my prime Last edited by streetstar; 01-01-2008 at 08:40 AM. |
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#25 | |
Account Suspended
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,815
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Re: The oil is not even 3,000 miles
Quote:
It ain't apples to apples, and oil quality certainly DOES matter in a daily-driven SBC - especially with a flat-tappet cam! |
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