Additive Fallout This Morning

Joined
Oct 24, 2008
Messages
989
Location
Iowa
So I changed the oil in my Malibu today with 4 quarts of Pennzoil Platinum 5w30 that were all less than a year old. I looked in the bottle after I was finshed and noticed some dark setiment on the bottom. I immediately had a sinking feeling in my stomach because I knew that some of the additives fell out. I'm debating about draining it now. What do you all think?
 
Joined
Jun 17, 2005
Messages
4,942
Location
Billings, MT
What I would do is pour about 1/2 of a quart of fresh oil into that bottle and shake it up really good, then pour it into the engine.
 
Joined
Sep 28, 2008
Messages
81
Location
Texas
Wont it get dispersed as it cycles through the engine? Or is there a chance that the additives may stick to surfaces before that happens?
 
Joined
Jan 29, 2009
Messages
2,804
Location
NJ
It's normal for that to happen, I typically shake shake shake my 5qt jugs before dumping em into the engine. Have to remember, those jugs also sat on a shelf. Oil and additives don't go bad from sitting around.
 

Nyquist

Thread starter
Joined
Oct 24, 2008
Messages
989
Location
Iowa
Thanks for the responses all! I should have added that I was a little slow from last night. A couple after dinner drinks with my wife and friends turned into closing the bar down. I woke up at 6 am CDT to get it changed before work today. I just got off the phone with one of the Pennzoil technical support guys. He told me not to worry about it since it was likely some very fine setiment from the refining process. I asked him directly if I should be concerned about engine damage, and he said that it is Ok to leave it in since it most likely was not additives sitting down there if the quart bottles were from October 2008 and newer.
 
Joined
Sep 13, 2003
Messages
5,928
Location
Waterloo, ON
Don't worry about it. This subject has come up more times than anyone cares to remember. Responses from oil companies are: Just pour it in and don't worry about anything in the bottle. Not all oil companies call it additive fallout either
 

JHZR2

Staff member
Joined
Dec 14, 2002
Messages
46,780
Location
New Jersey
Solids would indicate to me precipitation, I'd bet you actually saw a less soluble second oil phase form due to a change in temperature and mixing. They ought to re-solubilize if you can get them in mixture and to temperature.
 
Joined
Dec 30, 2006
Messages
25,592
Location
Dallas,Tx USA
I`ve noticed that in the two leftover 1/2 quart jugs of Penz yb 20W50 I have left from a couple previous oci`s. They weren`t like that when I bought them new. I shake them,it goes away........a few days later,it`s back on the bottom of the jugs. Same thing with 2 jugs of Valvoline 10W40 wb I bought. dark stuff settled on the bottom of the jug. BUT,I had a very old quart bottle of wb 20W50 that had come from Sears and never had the fallout on the bottom. I had a 1 year old bottle of yb (the old stuff,not the Sopus stuff) which had a half quart left in it. It never had the fallout on the bottom. Weird thing................both jugs of yb and both jugs of wb that had the fallout came from Walmart. The individual quart bottles of yb and yb (one from Sears and one from Autozone) never had the fallout stuff. All of that makes me suspcious of the quality of Warmart oils. Want to add a lil something........my half quart bottle of VR1 20W50 has been sitting in the same spot for about a year unmoved,I just picked it up,opened it and looked in the bottom.........absolutely no fallout whatsoever. This oil was bought at Autozone. This whole fallout thing is a bit scary. If the additives fall out,what`s left in the oil to protect your engine?
 
Last edited:
Joined
Feb 26, 2009
Messages
283
Location
Upstate NY
Truth is not necessarily on the majority side......you might say that you've got UOA's to back the PP claim, but the UOA's don't tell how the cars were driven. One can not conclude from random UOA's alone. Just like Consumer Report's car survey, they don't cover the general public, only the subscribers......I am not saying there's no truth in UOA (or CR's car rating), but it's not the whole truth. I believe PP is one of the good oils out there, but by no means it's the best as it's portrayed on this forum.
 
Joined
Jul 3, 2005
Messages
36,245
Location
NY
I had that happen when I used Mobil 1, since I tend to stock pile oil, and it sits. I made the change to PP, still notice it only if I forget to shake the bottles. It has now become a practice to shake up all oil before I use it.
 
Joined
Jan 3, 2009
Messages
14,882
Location
Illinois
Thank you are having problems with your PP, I recently un corked a qt. of M1 and a iron vise fell out.
 
Joined
Jul 3, 2005
Messages
36,245
Location
NY
No PP problems here. No iron vises either, I gave that up in December. Generally the oil sits for a year or longer since I stock it, so shaking is always a good idea for me.
 
Joined
Jan 3, 2009
Messages
14,882
Location
Illinois
I don't stock oil and I have never seen this additive thing you guys speak of. I'll look for it in the future, a long with the iron vise.
 
Top