Ok....I know there's been some discussion on this, but are there real reasons to bash Pennzoil products? I have been given a 5 free oil change coupon at a shop here in my home town that uses Pennzoil 10w-30. I have always used Castrol 10w-30 on my 4.2 litre ford with 65,000 mi, but costs $5 extra to substitute the Castrol for the Pennzoil.

Ok....bash away!

 

There is nothing wrong with Pennzoil. People tend to bash Pennzoil and Quakerstate oils based on 30 year old misinformation.

 

The current Pennzoil is now one of the best and I would actually choose it over Castrol. Purebase is a Group II base oil, similar to ChevronTexaco ISOSYN. Castrol wont make MSDS or datsheets available on the web, why? Pennzoil contains Moly. Shell now owns Pennzoil/Quaker State and Shell has some of the best VI improver chemistry.

Pennzoil LongLife was my favorite oil before I descovered Chevron Delo.

Jim

 

Why does Pennzoil turn everything in your motor orange?

 

Man you know I just had to get in on this. I am a big Pennzoil user,alot of my freind's are Penn users,thank's to me . I have done alot of digging on oil site's to check out oil's when I bought my 2004 Scab,and it alway's came back to Pennzoil,now I will admit that currently I am running 5w-20 castrol syn. blend on my first oil change cause I was not aware that Pennzoil had updated spec's on the 5w-20 brand oil to pass Ford & Honda requirement's,but that will soon be taken care of. Look at the UOA's on bobistheoilguy site,some of the member's of that forum even said they were thinking of changeing over to Penn. after looking at wear number's on the test result's from the UOA"S,even amsoil rank's them third on the 5w-20 list of oil's over alot of other one's out there. Well Im done ranting now,but it do feel good. OH YEA,why waste money on Mobil1 when Penn is better!

 

My experience with Pennzoil was in the late 80s. I had a mini-truck with a 4 cylinder motor. Valve lash adjustments were regular maintenance so I was always in the valve cover. For the first 90,000 miles I used Valvoline. The engine components remained clean. I changed to Pennzoil and everything inside the engine turned BLACK. I don't know if it hurt anything but I didn't like it and haven't used Pennzoil since and will never use it again.

 

Well 76supercab2,My question is,if you ran valvoline for 90,000 miles,then why in the heck did you change. See,there are differnt detergant's in the differnt brand's of oil's,you may have broken up some sludge in the bottom end of your motor when youadded Pennzoil.A freind of mine is a tech at a lincoln Mercury dealer where he purchased a trade in,a mustang I think,any way he put mobil 10w-30 oil in it,after 300 mile's the car started to use oil,he contacted the previous owner's and found they used 10w-40,the oil rep that sell's the dealer oil said that the 10w-40 oil had built up around the piston rings and since the 10w-30 had more cleaning detergants in it,it did what it supposed to do and cleaned the ring's of unwanted gum,which in this case was a bad thing. I also used to ware polyester bell bottom's in the 70s,but I don't no more.

 

I think it depends on the application. I used to use Penzoil in my PSD and it never faired well between oil changes. I use either Rotella or Delo and they seem to do much better between changes.

 

Pennzoil is the best non synthetic motor oil on the market today according to numerous UOA (used oil analysis).

Most people relate stories from parts counter commando's, and "my daddy told me.........." or "i know a good mechanic and he said pennzoil sucks......" type of stories as facts that "they" expierenced. I have called many people out on this subject and NOT ONE SINGLE PERSON has ever had any proof to back up thier comments. Not one story has every been written and not a single scientific study every been conducted to back up those statements.

In reference to the valvoline/pennzoil comparison made above Valvoline is the weakest name brand oil on the shelves right now and Pennzoil seems to be the best when you use UOA to determine oil quality. Check out bobistheoilguy.com and you will find that a lot of guys here use old wivestales without the science to back it up.

Long story short, Pennzoil is most likely the best dino oil on the market and you would be well served by using Pennzoil for many more years.

To be fair to all brands of oil the best and worse SL rated motor oils are not very far apart in quality. The worst oil that is rated SL is still a very good oil and will serve you well. Without doing a UOA one can not tell the difference between brands anyway.

 

My story is from first hand experience and is based on how my truck ran between oil changes and what the condition of the oil was when I changed it. Penzoil may be a leader in oils for gas engines, but is far from the top in diesel oils.

And yes, this is first hand experience, not information or a story passed on to me by someone else.

 

Castrol Oil for 34 Years im happy,can sleep at nites,got more in life to worry about.

 

Sounds like the pennzoil was cleaning the engine of the deposits and sludge that the valvoline couldn't handle.

 

How exactly did the oil not hold up well between changes? Please explain.

Just curious. I would like to know why you think it didn't hold up well.

Do you have your UOA close by so you can post it for us all to see how you came to this conclusion? Or is this another story without the documentation like all the others? Please don't tell me it is how the oil looked.

 

I don't need a test to prove it didn't fair as well. The engine ran noticably louder after about 2000 miles and had foaming problems. I haven't had these problems with either Delo or Rotella. I'm certainly not going to run Penzoil again just to have the oil tested. When I was using Penzoil I had no bias against it, I changed because I was unsatisfied with the performance.

Post this same question in the diesel forum and noone will recommend Penzoil as one of the top diesel oils.

 

I just wanted proof and not "seat of the pants" impressions. Thanks for being an example of a pennzoil basher that has no proof to back up his comments other subjective impressions.

People in forums say a lot of things without proof to back it up so just because the guys in the diesel forum say something does not make it so.

Still nobody can provide proof. Just more "seat of the pants" conclusions which are by no means scientific and very tainted with bias.

Once again I have succeded "outing" some pennzoil bashers. Only about the 100th time I have done so on FTE. This is getting too easy.