Nasty rumor about Penzoil

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I love these! It's always Pennzoil getting slammed. This rumor is so strange, one could just replace Pennzoil's name with any other. I totally don't buy it.
 
Originally Posted By: tinmanSC
I love these! It's always Pennzoil getting slammed. This rumor is so strange, one could just replace Pennzoil's name with any other. I totally don't buy it.


If the rumor wasn't true, Sopus wouldn't admitted to the claim in their Q&A and wouldnt have tried to explain it away. Why not just say that the rumors arent true?!? Also, the plethora of people who are aware of these rumors show that it certainly has an element of truth.
 
Originally Posted By: simple_gifts
Originally Posted By: Rand
it might have been true in 1970.



Yeah, back when bacon, eggs, buttered toast, and whole milk was a "balanced breakfast"


What the??!! It's not?? What am I supposed to eat now?
 
Originally Posted By: rcy
Originally Posted By: simple_gifts
Originally Posted By: Rand
it might have been true in 1970.



Yeah, back when bacon, eggs, buttered toast, and whole milk was a "balanced breakfast"


What the??!! It's not?? What am I supposed to eat now?

Fruit fresh of course,yogurt no flavor of course only plain and bottled water. Everything else causes health problems.
shocked2.gif
 
years ago back in 70's and 80's I had a negative view of Pennzoil due to my thinking it was a cheap oil and sludged up the engines. This was partly due to high school shop class experiences, working with lots of engines, listening and talking to people who had used it and complained about it, etc...

Those issues today are gone away, IMO. I think todays oils are if formulated correctly, lightyears ahead of oils from that era.
 
Originally Posted By: Blkstanger
Back in the late 70s early 80s my buddy was an automotive machinist. He would ask every customer what oil they had been using before he tore the motor down for rebuild. He told me that Pennzoil users always had the most sludge in the pan. And Valvoline users had the cleanest engines. Kind of a crude way to judge oil but for the time it worked for him I guess. Those were the only two oils he mentioned to me. I know that was a long time ago and oil in general has come a long long way. My last fill was Pennzoil.


That may not mean that they actually used Pennzoil. They could put in any [censored] oil, then when asked, they say the first oil brand that comes to mind, or oil brand that is advertised the most on TV, even though they never used the stuff. Customers lie.
 
Originally Posted By: simple_gifts
Originally Posted By: Rand
it might have been true in 1970.



Yeah, back when bacon, eggs, buttered toast, and whole milk was a "balanced breakfast"

What... no sausage?
 
I used Pennzoil through out the 60s and 70s and never had any issues. But of course I changed my oil regularly and kept the PCV valve in good working order.

And as far as paraffin is concerned..this is taken from Valvoline's MSDS sheet.

3. COMPOSITION/INFORMATION ON INGREDIENTS
Hazardous Components CAS-No. Concentration
HEAVY PARAFFINIC DISTILLATE 64742-54-7 >=60- HEAVY PARAFFINIC DISTILLATE 64742-54-7 >=30-<40%
 
Back when I was a Kid, my grandfathers neighbor, who rebuilt engines for a living, always said "That Pennzoil is mabe in a #5 wash tub in the back room of Joe's Bar and Grill!" He alwaya said " you sure can tell when somebody uses that pennzoil! The motor is all sludged up! Funny how these old timers were die hard brand specific. I dont know why he said that, though he never said a word when my grandfather changed oil in his old tractor with pennzoil SAE 30, and it is still running to this day. The only brand of oil I have ever seen sludge up was havoline, and that was because it never got changed.
 
There are rumors about most every oil on the market. Most of witch are started by haters of the particular brand being bashed and most of witch are of no consequence of the oil but the lack of using it properly. Don't believe anything you hear about oil and second guess watch you see.
 
Originally Posted By: johnachak
Originally Posted By: simple_gifts
Originally Posted By: Rand
it might have been true in 1970.



Yeah, back when bacon, eggs, buttered toast, and whole milk was a "balanced breakfast"

What... no sausage?


Whole milk for breakfast? You want coffee with heavy cream! The sugar is optional
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Whimsey
 
I guess back in the day Pennzoil and Quaker State were refined from Pennsylvania crude oil which contained quite a bit of paraffin.

I'm sure that it did sludge up engines, back in the day, if not changed at much shorter OCI's. There were lots of oils sludged up engines back then caused by more than just motor oils. Head gasket issue, poor PCV systems and oils that were not up to the test of today's standards.

However, Pennzoil and QS were sold off and now SOPUS owns the Pennzoil and Quaker State names. SOPUS, to the best of my knowledge, does not use PA crude oil in their motor oils.

All the oils made by SOPUS are out of the Houston, TX area and not out of PA.

There are only a couple of isolated oils now made in PA and think some of these are racing oils.
 
Originally Posted By: 4ever4d
There are rumors about most every oil on the market.


Agreed. We've heard them about Pennzoil, Quaker State, and GTX. Funny, I've used them all for a lot of years with no such issues.
 
Originally Posted By: Zeus103363
Funny how these old timers were die hard brand specific.


That's what I've noticed too. If I were to believe the rumors, the ONLY GUYS who were brand-specific were Pennzoil users! Because NO ONE else had the problem! Amazing!
 
My theory is that Pennzoil was and is a widely used engine oil, so the rumors about sludge are more common than with some of the other oils. Back in the 60's when I was a kid, older engines were almost always slugded. I believe it had to do with running with no thermostat, long OCI's, using carburetors and oils that weren't as good as what we have now. I have used Pennzoil and Quaker State oil since I started driving in 1962 and have never had a sludge problem.
 
Originally Posted By: fdcg27
Pennzoil and Quaker State were at one time rumored to cause engine sludge.
They probably didn't then when changed on appropriate intervals, and they certainly don't now.
I have been using PP since its intoduction.
I've seen nothing but good results with it, and even had a really good UOA using it on my older Accord.
It's posted in that forum.
I've used a little Pennzoil Conventional and Quaker State Conventional here and there as well, and would not hesitate to use either again.
In short, an old wives' tale.


QS did sludge my 64 Valient Slant 6 very bad. I bought the car with 13K, changed the oil every 2K. At 50K I had to adjust the lifters(Solid Lifters). When I removed the valve cover there was a lot of sludge. After cleaning it up I switched over to Valvoline straight 30wt HD summer and 20wt, winter. No more sludge.
 
Originally Posted By: simple_gifts
Originally Posted By: Rand
it might have been true in 1970.



Yeah, back when bacon, eggs, buttered toast, and whole milk was a "balanced breakfast"


I thought that was still a balanced breakfast.
 
Originally Posted By: tig1
QS did sludge my 64 Valient Slant 6 very bad. I bought the car with 13K, changed the oil every 2K. At 50K I had to adjust the lifters(Solid Lifters). When I removed the valve cover there was a lot of sludge. After cleaning it up I switched over to Valvoline straight 30wt HD summer and 20wt, winter. No more sludge.


Following my dad's experience and advice (just this once), I and my family used QS in the late '60,s thru '70's with no problems at all. So, what does all this mean?
 
Originally Posted By: doitmyself
Originally Posted By: tig1
QS did sludge my 64 Valient Slant 6 very bad. I bought the car with 13K, changed the oil every 2K. At 50K I had to adjust the lifters(Solid Lifters). When I removed the valve cover there was a lot of sludge. After cleaning it up I switched over to Valvoline straight 30wt HD summer and 20wt, winter. No more sludge.


Following my dad's experience and advice (just this once), I and my family used QS in the late '60,s thru '70's with no problems at all. So, what does all this mean?


It means your dad had no problems and I did. That was just my experience.
 
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