NICE58DELRAY
Forum Newbie
Posts: 93
Age: 50
Loc: Owatonna, MN
Reg: 07-25-11
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05-23-12 12:16 PM - Post#2229014
Does anyone know what causes oil to turn black? After changing my oil, it gets real black real fast. What could be causing this? I also have the oil filter on top of my engine, wondering if there's a way to get the old oil out of the canister other than using a Turkey Baster?
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3483x2
Contributor
Posts: 165
Loc: Middlesex, CT
Reg: 01-02-09
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05-23-12 01:07 PM - Post#2229025
In response to NICE58DELRAY
Hmmm - Based on your description, it sounds like you have a 6 Cyl with the oil filter hanging off the exhaust manifold.
When I used to change oil in my 6 Cyl Bel Air, I seem to remember "sopping up" the excess in the filter canister with some paper towels.
It wasn't an extreme PIA (pain)to do, but did require that extra step.
If you're not doing something like this now, I can see why your oil could be blackened sooner by old oil contamination. Make sense?
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NICE58DELRAY
Forum Newbie
Posts: 93
Age: 50
Loc: Owatonna, MN
Reg: 07-25-11
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05-23-12 01:12 PM - Post#2229027
In response to 3483x2
I change the oil every 1000 miles due to it's color. Could bad rings cause this problem? Or maybe a bad fuel pump leaking gas into the crankcase? I clean every last drop of oil out of the canister each time.
Edited by NICE58DELRAY on 05-23-12 01:14 PM. Reason for edit: No reason given.
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62sedan
Very Senior Member
Posts: 3355
Age: 62
Loc: North Dallas area
Reg: 08-12-02
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05-23-12 01:56 PM - Post#2229039
In response to NICE58DELRAY
Some causes:
*Carbon-black from incomplete combustion
*Dirt being introduced through the induction system (aircleaner/dirty filter)
*Failure to remove every drop of old contaminated oil at oil change intervals (basically impossible; some stays in oil pan)
*Sludge buildup in motor
It only takes a little bit of old, black oil being mixed into or introduced to the new, clean oil to cause a very dark appearance of the new oil.
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NICE58DELRAY
Forum Newbie
Posts: 93
Age: 50
Loc: Owatonna, MN
Reg: 07-25-11
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05-23-12 03:13 PM - Post#2229064
In response to 62sedan
Thanks for your Input. I'm thinking the old 1 barrel is running rich. I put a carb kit in her but the old Rochester is probably worn out. Good excuse to put the 348 out of the grain truck in her!
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 DonSSDD
Silver Supporting Member
Posts: 4674
Loc: Nova Scotia, Canada
Reg: 08-21-01
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05-23-12 07:09 PM - Post#2229125
In response to NICE58DELRAY
You could get an oil analysis done at a heavy truck or Cat dealer to see how good or bad your 1000 mile oil is the next time you change it.
Don
59 El Camino, 62 Bel Air SC, 62 Bel Air SC(sold in Finland is 2011), 63 SWC Vette (sold)
Member #2194 |
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