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Disturbing experience changing my oil.

Biggus Dickus

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So I changed out my oil in my Silverado 1500 today and last time I changed it I switched to 0w-20 Royal Purple with a K&N oil filter (it was all they had at the time). Well before I changed the oil today I had started smelling a terrible exhaust smell that I thought was odd. During the oil change as soon as I started dumping the old oil the smell hit me, very burnt oil. I was not happy. This time I used Pennzoil Platinum with a Wix XP, drove the truck, no more smell and the engine is idling very smooth and the oil pressures seem much more stable.

Its almost as though the oil wasn't circulating in the engine, bad oil filter?

Any thoughts are appreciated or has anyone experienced this? I noticed I had full power back to the engine which I never realized I lost since the Royal Purple oil change. The truck is a 2018 with 18K miles but I drove it for 5K miles before the oil change today. WTF!
0-20 seems pretty thin for a Chevy - and even if its recommended, 0-20 is the PBR or Busch Light of motor oils.

If you have any of that used RP left, send it off for analysis. Maybe you can send the filter off?

Was there anything reading on the dip before you changed it? (i.e., was it burning oil?).

And hopefully your RP days are behind you. And why the hell do they put put that stupid dye in there that burns off anyways? I mean...WTF?

And an analysis in a lab will detect things your eyes can't.
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carguy231

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0W-20? Sounds about like 3-in-1 oil. Way too thin.
 
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0-20 seems pretty thin for a Chevy - and even if its recommended, 0-20 is the PBR or Busch Light of motor oils.

If you have any of that used RP left, send it off for analysis. Maybe you can send the filter off?

Was there anything reading on the dip before you changed it? (i.e., was it burning oil?).

And hopefully your RP days are behind you. And why the hell do they put put that stupid dye in there that burns off anyways? I mean...WTF?
Manufacturers spec for that model year. The other post about the additives in the oil is an interesting thought. While I was filling the truck back up my wife walked outside and asked me what the hell I was doing and what was that smell, it was that powerful no kidding. Done with Royal Purple, it looked burnt when it came out of the bottle to be honest.
 
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S550_Newbie

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0-20 seems pretty thin for a Chevy - and even if its recommended, 0-20 is the PBR or Busch Light of motor oils.

If you have any of that used RP left, send it off for analysis. Maybe you can send the filter off?

Was there anything reading on the dip before you changed it? (i.e., was it burning oil?).

And hopefully your RP days are behind you. And why the hell do they put put that stupid dye in there that burns off anyways? I mean...WTF?

And an analysis in a lab will detect things your eyes can't.
I got just under 8 quarts out so some of it did burn off for sure. 0-20 can't be that much different than 5-20 I would think, and yes, I will never use RP again. Sticking with my go to Pennzoil as I have my first oil change coming up in the Mustang.
 

sk47

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0W-20? Sounds about like 3-in-1 oil. Way too thin.
Hello; Yes it does. My 2004 Silverado calls for 5w30 but allows for the use of 10w30 if the temps will be warm enough. If I were the OP I would look in the owners manual to see if another weight range of oil is allowed.
 

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Biggus Dickus

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Manufacturers spec for that model year. The other post about the additives in the oil is an interesting thought. While I was filling the truck back up my wife walked outside and asked me what the hell I was doing and what was that smell, it was that powerful no kidding. Done with Royal Purple, it looked burnt when it came out of the bottle to be honest.
What motor?

our cars recommended to use 5-20, but I've used PUP 5-30 since I changed out the factory fill.
 

ice445

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A clogged oil filter will just open its bypass section. I've heard of defective filters being stuck in bypass out of the gate, but other than not filtering it shouldn't cause problems. I think something else is going on here. RP may just smell that way after it heat cycles enough times.
 
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S550_Newbie

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What motor?

our cars recommended to use 5-20, but I've used PUP 5-30 since I changed out the factory fill.
5.3 regular gas, not flex or anything like that.
 

showbbq

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Some ceratec will get rid of that pesky mustang tick. :thumbsup:

O wait what is this thing again..a chevy truck lol. Your situation sounds strange though. I'd check the oil again after a couple of hundred miles and hope RP oil was the issue.
 

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Nothing wrong with Royal Purple oil (I agree it does smell weird though) or using the oil weight that is recommended. I agree with others that there is a leak or a spill if you smell oil burning.
 

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"I switched to 0w-20 Royal Purple"

I am no expert but I can read.... see if this helps

Reference owner manual

Screen Shot 2021-04-24 at 8.59.19 AM.png
 

sk47

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Hello; Question for the OP. How did you come up with the oil spec of 0w20 for your engine?
 

K4fxd

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Nothing wrong with Royal Purple oil
Tell that to my old Boss.

RP paid for a lot of industrial gear boxes when their crappy oil didn't hold up.
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