Mixing oil ?

[frostypanic]

Guys,

I have 1.5qts of supertech 5-30 left over from changing the oil in my buddy's beater. I was wondering if it would be ok to mix the left over super-tech w/Valvoline Max life in my next oil change. Car is 00 Saturn w/eco-tec motor, 95K on the clock, car runs perfect, no leaks and no make up between 4K drains. Thanks for all replys.

Brian

 

[LargeCarMan]

Let your buddy keep it for top-offs....overwise mix away.

 

[Clyde65]

***Cringes at the thought of adding ST to Maxlife***........ Ouch!

 

[Ray H]

Why?

 

[pbm]

I would mix away without a worry. Normally when I mix oils I try to stay in the same family (brand). Since you are talking about ST its hard to know if its a WPP, E-M, or even a Specialty Oil Co. (the former QS subsidiary in Shreveport La.) or even some other supplier. I have mixed different brands in the past without any problems.
Personally I think the whole additive clash issue is overblown. (I'm not saying there isn't such a thing)

 

[dave1251]

Go ahead your not going to hurt anything.

 

[badnews]

the whole additive clash issue is overblown

Yep

 

[BrianWC]

quote:

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Originally posted by pbm:
I would mix away without a worry. Normally when I mix oils I try to stay in the same family (brand). Since you are talking about ST its hard to know if its a WPP, E-M, or even a Specialty Oil Co. (the former QS subsidiary in Shreveport La.) or even some other supplier. I have mixed different brands in the past without any problems.
Personally I think the whole additive clash issue is overblown. (I'm not saying there isn't such a thing)

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Specialty Oil is in Houston. Pennzoil/QS sold the refinery to Calumet Lubricants. PZ/QZ bought the refnery from Specialty Oil. AS far as I know, they aren't a Supertech supplier. They must still have some presence in Shrevport as their "Supra Tech" is in every gas station. Notice I said SuPRA Tech. Not SuPER Tech.


Here's the article I found on the deal, BTW:

COMPANY NEWS; QUAKER STATE IN $131 MILLION DEAL FOR LUBRICANTS MAKER

Published: August 5, 1994

The Quaker State Corporation, the motor oil maker, said yesterday that it would buy the Specialty Oil Companies in a deal worth $131.5 million deal, doubling its lubricant sales and services business. Specialty Oil, based in Shreveport, La., markets branded and private-label lubricants and antifreeze for automotive use, along with heavy-duty lubricants for fleet, commercial and industrial customers. Herbert M. Baum, Quaker State's chairman and chief executive, said the purchase would increase the company's annual sales to nearly $1 billion. Quaker State will pay about $25 million for Specialty Oil and $10 million for related assets. It will also assume $40 million in debt and issue four million shares of stock. Based on Quaker State's closing stock price of $14.125 yesterday, the shares would be worth $56.5 million.

 

[Ron AKA]

I don't worry about mixing. If my oil is low I add whatever oil meets the API requirements and is handy.

 

[UncleS2]

Mix away & don't worry.

I sure would. The oil won't care, your car won't care, & you'll save a little $$.

 

[pbm]

BrianWC: That's an interesting article. The reason I mentioned Specialty Oil is because I recall WM's inhouse ads (banners in the motor oil aisle) in the late 90's claiming ST oils were made by 'the Quaker State Corp' and then hearing that it was actually their Specialty Oil Co. affiliate. The ST full synthetic of that era must have been a PAO synthetic since the Mobil vs. Castrol 'thingie' hadn't yet happened. Recently ST has been made by WPP and also E-M according to this site. At any rate I would use the oil in a mix with no problem.

 

[psudaytona]

If additive clash was a real problem, my car would be dead now. Since Dec when I did my last full oil change, I used supertech 10w30. Well I found out I have leaks in my front seals and since Dec, I have dumped in 5 quarts maybe of topup oil. I would say I have about 4500-5000 miles since Dec(car used for school commutes and short trips around town), with this constant replenishment, I havent seen the point of doing full oil changes so far. I change the filter though.
Napa Proselect - Purolator PP - Supertech Oversized 8A
My mix of oil is
Supertech - 2 quarts valvoline - Castrol GTX - Supertech HM - Havoline - And in the past month, half bottle of SLOB for good measure.

 

[BrianWC]

Hmm, I don't know. I've heard that as well, actually. But here's the interesting thing. I acquired a bunch of cheap SJ Pennzoil Synth w/ Pennzane and it was made at the Shreveport refinery.

To make things more interesting (take note Ray H)... I noticed that the "new" Supertech Synth and dino quart bottles have the exact same markings as the QS quarts....

So I guess SOPUS IS makng a contribution to Supertech Synth.....even though all the 5 qt. bottles here are still Warren.....

Anyone want to volunteer to work in the oil dept at Wal-Mart to get a better idea?

Sorry for threadjacking......I mix all sorts of oils, btw.

 

[schwartr88]

quote:

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Originally posted by Clyde65:
***Cringes at the thought of adding ST to Maxlife***........ Ouch!

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Its kinda like peeing in a fine wine.

 

[Camu Mahubah]

I mix in my beaters...