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Oil Mix??? #5419597 05/03/20 04:20 AM
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Char Baby Offline OP
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So, my buddy's grandson put 3 or 4 different oils brands & wgts in his engine along with an accidental qt of *P/S fluid. Engine runs fine(Chevy 350) but now grandson is a bit concerned. Oils & p/s fluid are as:

1 qt Mobil1 15W50
2 qts NAPA straight 40 conv.
1 qt QSGB 5W30
*1 qt GUNK P/S fluid(yellow bottle)...He claims that he thought it was PYB.

No issues but, he is now concerned if he should change the oil *OR can he wait some time and just use this mix(and experience) as an engine flush, so to speak?

Last edited by Char Baby; 05/03/20 04:23 AM.

Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Oil Mix??? [Re: Char Baby] #5419609 05/03/20 05:05 AM
Joined: Jul 2005
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demarpaint Offline
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I'd be changing it.


God Bless Our Troops

Re: Oil Mix??? [Re: Char Baby] #5419612 05/03/20 05:11 AM
Joined: Mar 2017
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PimTac Offline
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Change it out.


2017 Mazda CX5
Mobil 1 Annual Protection 0w20
Roki OEM filter.
Re: Oil Mix??? [Re: Char Baby] #5419613 05/03/20 05:15 AM
Joined: Apr 2020
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ABN_CBT_ENGR Offline
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Originally Posted by Char Baby


No issues but, he is now concerned if he should change the oil *OR can he wait some time and just use this mix(and experience) as an engine flush, so to speak?


Personally I would be more concerned that he either didn't read or didn't care and did all that in the first place.

More likely than not the engine should be OK but still that's never advisable.

I would recommend a qt. sweetening package mixture 50:50 of WD-40 and Head & Shoulders or either just change the oil

Re: Oil Mix??? [Re: Char Baby] #5419620 05/03/20 05:58 AM
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Char Baby Offline OP
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Yeah, he was kinda in a hurry and being young, just didn't look/read everything the way he's supposed to. Grampa gave Grandson a bunch of leftover oils from the garage that Gramp isn't going to use anymore. Some oils were from Gramp's motorcycles and other oils were just some stragglers from the cars and OPE.

And knowing that any oil is better than no oil or dirty/cruddy oil that, using these heavy wgts oil(40 & 15W50) with the upcoming Summer, wouldn't hurt anything in Grandson's engine. Not realizing that there was a P/S fluid mixed in the bunch.

I mean, other than Gramp asking me and me asking you folks, Gramp searched this issue on the web and most comments came up..."Don't worry about it if it's Only 1 qt of P/S fluid!"

But, I am asking this team anyway 'cause I value the opinions here at Bob's.


Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Oil Mix??? [Re: Char Baby] #5419622 05/03/20 06:00 AM
Joined: Oct 2010
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Astro14 Offline
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Goodness... change it. It’s not “flushing” anything. No good will come of this mixture.


32 Packard 15W40
01 Volvo V70 T5 0W30 AMSOIL SS
02 Volvo V70 T5 0W30 Edge
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: Oil Mix??? [Re: demarpaint] #5419626 05/03/20 06:12 AM
Joined: Mar 2015
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bbhero Offline
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Originally Posted by demarpaint
I'd be changing it.



Me too...


Nissan Altima 3.5 Coupe
Cam2 Full synthetic 5w30 Carquest Blue 84356
"Treat your family like your friends and treat your friends like your family."
Re: Oil Mix??? [Re: Astro14] #5419627 05/03/20 06:12 AM
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bbhero Offline
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Originally Posted by Astro14
Goodness... change it. It’s not “flushing” anything. No good will come of this mixture.



I agree ^^^^^^^


No magic mix here.


Nissan Altima 3.5 Coupe
Cam2 Full synthetic 5w30 Carquest Blue 84356
"Treat your family like your friends and treat your friends like your family."
Re: Oil Mix??? [Re: Char Baby] #5419637 05/03/20 06:32 AM
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Kira Offline
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2 quarts straight 40 and 1 of 15-40....does the car clack a bit upon startup?

Keep an eye on what that kid does and buys. No credit cards until you know he's not daffy.

Could any of the Frankenbrew experts calculate the final grade of that mix? ...a 7.5W-42?

Re: Oil Mix??? [Re: Char Baby] #5419688 05/03/20 07:36 AM
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Oildudeny Offline
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Wow.. change it out. Get that kid a mail-order chemistry set and keep his paws out of the garage.

Run down to home depot pick up a 5qt jug of shell 10w30 and a fram

Ps grab me a pack of yard bags. Thanks

Last edited by Oildudeny; 05/03/20 07:39 AM.
Re: Oil Mix??? [Re: Char Baby] #5419693 05/03/20 07:39 AM
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joekingcorvette Offline
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I would change it.


2005 Chevrolet Corvette
2014 Ford F-150 4x4 supercrew
2014 Jeep Grand Cherokee Limited (wifes)
2012 Honda Civic 4 door (my daily driver)
2007 Lund Tyee Grand Sport Mercury 115HP 9.8HP
Re: Oil Mix??? [Re: Char Baby] #5419694 05/03/20 07:42 AM
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philipp10 Offline
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How old is the car? I highly doubt it will hurt a thing. The power steering fluid generally made from oil but is pretty thin but will balance out with the 2 quarts of 40 wt. Unless the vehicle is worth much, no big deal.

Last edited by philipp10; 05/03/20 07:46 AM.
Re: Oil Mix??? [Re: Char Baby] #5419719 05/03/20 08:17 AM
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WyrTwister Offline
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Yep , change the oil & filter .


Wyr
God bless
Re: Oil Mix??? [Re: Char Baby] #5419730 05/03/20 08:25 AM
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CT8 Offline
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No harm will come.


2015 F150 2.7
2018 F350 6.2
Re: Oil Mix??? [Re: Char Baby] #5419742 05/03/20 08:32 AM
Joined: Mar 2017
Posts: 13,410
PimTac Offline
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That engine probably squeals with that power steering fluid in it.


2017 Mazda CX5
Mobil 1 Annual Protection 0w20
Roki OEM filter.
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