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Why my freshly changed oil turns black?


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Posted
 
https://www.bobistheoilguy.com/forums/ubbthreads.php
 
The more I read answers and suggestions, the more confident I'm getting with new adquired knowledge about oil/filter changes in my truck.
The link above, simply fantastic!
 
Thank you all for your comments/suggestions!


Most important thing you can do is introduce the best oil and filter you can afford for the life of the vehicle, everyone including myself will have their own opinion but at the end of the day, are you just getting by with meeting specs or are you wanting more, more protection along with a smoother, happier engine doesn’t come with “meets specs”. You may be like a few of us, standards are “exceeding the specs” for the sole purpose of longevity and that extreme protection between oil changes. Or, you can just get by with factory specs, sorta like tires, not all tires will last as long as others due to the chemical formula and as the saying goes, YOU ALWAYS GET WHAT YOU PAY FOR!
Good Luck and God Bless.


Sent from Above
Posted
5 hours ago, txab said:

It's a good quality as well. I'd use it with no hesititation..

 

With this said, plenty and I do mean plenty of threads on this site about oil recommendations. Everybody's got their opinion.  Stick to OP's topic.

 

 

https://www.bobistheoilguy.com/forums/ubbthreads.php

It is on topic considering this topic is, you know, about oil, and he did consider switching brands with everyone offering their opinion, as you already said.  Also, that site isn't this site so I wouldn't have been looking there for information when I can look here for information specifically related to our engines, not engines in general.  Also also, I already did a "search function" for Schaeffer oil and didn't find enough of what I'd like to hear from other people on this forum, not bobistheoilguy (doesn't mean I won't look, but it wasn't in my repertoire before).

 

But I digress.

Posted
22 hours ago, TXGREEK said:

 


No Flush, I’d recommend just giving Amsoil Signature Series a shot. It’s 100% Synthetic not the misleading Full Synthetic Oil. Become a member and you can get the quarts for $10 per quart and with free shipping right to your door on every $100 you spend. 100% synthetic doesn’t burn off as fast as Full Synthetic cause Full Synthetics are regular oil mixed with 100% synthetic additives. I ONLY use Amsoil 0W20 Signature Series along with Wix XP filters and have actually noticed a difference in the way my truck runs, smoother and there’s NOTHING better than Amsoil. If you don’t start using Amsoil, at the least get the Wix XP filter which is a specially synthetic filter, designed to capture as small as 20- 21 microns.

e6b02cdd8e155c514a00f324cc332635.jpg

Good luck!





Sent from Above

 

I think it’s time you fess up to being a vendor for them. You push this stuff wayyyyyyyy too much

10 hours ago, xSHIFTxNASTYx said:

His truck is not going to explode if he doesn't use Amsoil. :rollin:

 

Hopefully he can sense your sarcasm though.

 

On a side note, does anyone have experience with Schaeffer oil?  I can get it in bulk for dirt cheap but have no experience with it.

It’s not Amsoil so chances are you’re engine is gonna blow. I wouldn’t use it 

8 hours ago, nycrdknglouis said:

More good comments from you all. I am so thankful, you guys opinions and experiences are putting me at ease in this "black oil" issue.

·        One of the things I will not do is to "Flush the engine". General consensus is just do not do it!

·        All comments have been important and I am considering now Amsoil engine oil brand.

·        Also, I just find out about Blackstone labs and requested a kit to have oil checked by this lab. I will keep you posted it about the results from the lab.

 

 

I have to say also about my "5K miles" oil change. I've been following my dashboard "Driver Info Console" Oil Life Remaining as a reference w/o paying close attention to true mileage. Since Chevrolet recommends replacing oil every 7.5K miles, I thought, I was changing oil about 5K miles...or 30% to 40% OIL LIFE REMAINING on the  "Driver Info Console" indicator. How many miles does it take to go from 100% to 0% oil life. According to Chevy, it differs. The compute measures all kinds of indicators such as engine revolution and miles traveled and Engine hours…whatever comes first, as they say. So, in reality, appears to me I've been changing oil every 3K miles or so. From now on, I will log miles and Engine Hours for accuracy. 

Thanks to all again.

Do what I do. You have a trip a and a trip b in your DIC. Just reset the trip B every time you do an oil change.  When you get to 5k change your oil and reset. 

3 hours ago, TXGREEK said:

 


as the saying goes, YOU ALWAYS GET WHAT YOU PAY FOR!
 

 

That saying is bull shit. Especially when it comes to tires and even more so when it comes to oil

6 hours ago, MaverickZ71 said:

That's why I switched to the Shell Rotella Gas Truck motor oil.  It contains their diesel engine oil additive pack, but modified for use in gas engines.  Keeps my piston rings from getting stuck even better than other oil did with AutoRx added.  I have progressed from Pennzoil Platinum to Quaker State Ultimate Durability to Shell Gas Truck, and Wix oil filters [same as NAPA Gold or Platinum](since AC Delco jumped the shark and went all E-core), all based on BITOG posts and other research.  Shell Rotella Gas Truck is currently rated better than Shell's own QS UD and PP oils, which in turn are both rated better than Mobil1.  No, I'm not a Shell distributor.  I buy mine at WalMart and AutoZone.  

 

The most important thing is to do what you are comfortable with for your truck.  And since it seems you care for your truck and are maintenance-minded, you might consider changing the oil and filter at ~4-5K mile intervals instead of the OLM indicated 7.5K+ mile intervals.  

I’m running the Rotella gas truck 5w-30 and have been pleased with it over the Ow-20 I was running. I plan to stick with it. 

Posted
I’m running the Rotella gas truck 5w-30 and have been pleased with it over the Ow-20 I was running. I plan to stick with it. 

 

I used Rotella T6 in my diesels, depending on the stock grade, Rotella is a very good Oil.

 

 

Sent from Above

 

Posted
6 hours ago, Grumpy Bear said:

7,500 miles is the long end of the OLM but it will go  shorter under certain conditions.

Not knocking you, Grumpy, asking honestly. 

Has anyone figured out the 'conditions' that shorten the OLM?  I reset my 'Trip B' at every oil change on both my 2014 and my 2018 and both got to 0% at 7,500 miles regardless of driving conditions.  I regularly pull a 6,500# boat around for several hours in the dead of summer getting to the lake and back home.  I figure if anything is going to shorten the OLM that will, but it never changes.

Posted
I’m running the Rotella gas truck 5w-30 and have been pleased with it over the Ow-20 I was running. I plan to stick with it. 

I bought 60K miles tires 5 years ago. It came time for new ones. They wore out too soon all four. I got 160$ back. That covered the difference between cheap tires and expensive tires. So I got more than I paid for.


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Posted
6 hours ago, xSHIFTxNASTYx said:

It is on topic considering this topic is, you know, about oil, and he did consider switching brands with everyone offering their opinion, as you already said.  Also, that site isn't this site so I wouldn't have been looking there for information when I can look here for information specifically related to our engines, not engines in general.  Also also, I already did a "search function" for Schaeffer oil and didn't find enough of what I'd like to hear from other people on this forum, not bobistheoilguy (doesn't mean I won't look, but it wasn't in my repertoire before).

 

But I digress.

It wasn't aimed at you, but to head off this thread running off the tracks as most all the oil threads do, as they turn into as pissing match of "my oil is better than your oil".

 

I'll repeat, Schaffer is a high quality oil and you'll have no issue using it in any engine

 

Everything about Schaeffer on this site:

 

https://www.google.com/search?hl=en&as_q=schaeffer+oil&as_epq=&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=www.gm-trucks.com&as_occt=any&safe=images&as_filetype=&as_rights=

 

And the resident expert on Schaeffer is Cowpie. Send him a PM

Posted
2 hours ago, Darmichar said:

Not knocking you, Grumpy, asking honestly. 

Has anyone figured out the 'conditions' that shorten the OLM?  I reset my 'Trip B' at every oil change on both my 2014 and my 2018 and both got to 0% at 7,500 miles regardless of driving conditions.  I regularly pull a 6,500# boat around for several hours in the dead of summer getting to the lake and back home.  I figure if anything is going to shorten the OLM that will, but it never changes.

Same here.  I rest Trip B and when the OLM gets to 0% I'm right at 7,500 miles every time.  No matter how we drive.  Long trips or short 3 mile each way for a month.  Our 2011 Acadia was set at 5,000 miles so when the OLM was at 0% the Trip B on the Acadia was at 5k miles every time.

Posted
4 hours ago, Darmichar said:

Not knocking you, Grumpy, asking honestly. 

Has anyone figured out the 'conditions' that shorten the OLM?  I reset my 'Trip B' at every oil change on both my 2014 and my 2018 and both got to 0% at 7,500 miles regardless of driving conditions.  I regularly pull a 6,500# boat around for several hours in the dead of summer getting to the lake and back home.  I figure if anything is going to shorten the OLM that will, but it never changes.

 

1 hour ago, Black02Silverado said:

Same here.  I rest Trip B and when the OLM gets to 0% I'm right at 7,500 miles every time.  No matter how we drive.  Long trips or short 3 mile each way for a month.  Our 2011 Acadia was set at 5,000 miles so when the OLM was at 0% the Trip B on the Acadia was at 5k miles every time.

Oil temperature use to be part of it but anymore...who knows. As someone else said seems to be total revs OR miles OR hours and it seems miles wins 99.94% of the time. I ignore it anymore. 

Posted
4 hours ago, Black02Silverado said:

Same here.  I rest Trip B and when the OLM gets to 0% I'm right at 7,500 miles every time.  No matter how we drive.  Long trips or short 3 mile each way for a month.  Our 2011 Acadia was set at 5,000 miles so when the OLM was at 0% the Trip B on the Acadia was at 5k miles every time.


I’ve heard the same story from others many times about their OLM hitting 0% right at 7500 miles, but oddly mine typically hits 7800, and on one interval hit 8000.  Thought it was a fluke the first time.

 As I write this it occurs to me that my odometer may not be accurate.

Posted

My 06 trailblazer ss owners manual stated the oil change light would come on between 12-15K with mobile one. My Camry light starts coming 200 miles before 5K miles. Stays on at 5K. I believe the light is for people who are forgetful now. More of a reminder than an accurate measure. Synthetic oils are known to go longer when tested generally.


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Posted

The other great thing about the 5k I use on my vehicles is that it’s easy to keep track of, no trip odometer needed: 15k, 20k, 25k miles, etc. Idiot proof. 

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