Is this just a Pennzoil thing, or......
- Thread starter strombony
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Well I don't think so either..but I want to know of other brands of conventional such as Mobil Clean 5000, QS, Valvoline, Havoline perform as YB Pennzoil does in the 5w 30 grade in that it has the capability to clean up to 15% of deposits.
All the other brands say they will "prevent" deposits, but what about placing those products in an engine that already has some sludge? Will they clean up to 15%?
I use Valvoline with confidence, and I've been loyal to Pennzoil in the past, and this isn't really an issue for me because I change my oil on shorter OCI's. I guess I'd like to know just for curiousity sake.
All the other brands say they will "prevent" deposits, but what about placing those products in an engine that already has some sludge? Will they clean up to 15%?
I use Valvoline with confidence, and I've been loyal to Pennzoil in the past, and this isn't really an issue for me because I change my oil on shorter OCI's. I guess I'd like to know just for curiousity sake.
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Marketing hoopla...
106,000 miles on a cab? Probably with a 3K OCI, if that? So what? Could do that with anything. The cleaning existing sludge I'd bet is overblown, too. Heck, who needs ARX if Pennzoil Yellow cleans as depicted? Marketing, marketing.
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I don't see anything that's "false"
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First you need Pennzoil to define what constitutes "100% sludge" before I could comment. (old PR dodge. "First I think we need to define "completely destroyed" before I could comment")
That is, what are they using for a standard to gauge what 15% removal means? AFAIK, SWRI doesn't have a "sludge standard" ..they have deposit standards after an oil has been put through the wringer ..but I'm not aware of any "sludged engines" that you can pull off the shelf to determine a "sludge removal quotient".
That is, what are they using for a standard to gauge what 15% removal means? AFAIK, SWRI doesn't have a "sludge standard" ..they have deposit standards after an oil has been put through the wringer ..but I'm not aware of any "sludged engines" that you can pull off the shelf to determine a "sludge removal quotient".
How would you ever determine that 15% was removed when you don't know the amount that it started with?
Interesting their claim that the PP removes 46% of sludge...anyone ever run back to back OCs with PP and have it clean a dirty engine?
Interesting their claim that the PP removes 46% of sludge...anyone ever run back to back OCs with PP and have it clean a dirty engine?
I think that we are all just guessing until Johnny says something about this matter.
I would think that they are telling the truth because I am sure they have done some testing.
I would have to say that with 100% confidence that Johnny can answer this Pennzoil question just like Pablo or Gary would be able to answer an Amsoil question.
I would think that they are telling the truth because I am sure they have done some testing.
I would have to say that with 100% confidence that Johnny can answer this Pennzoil question just like Pablo or Gary would be able to answer an Amsoil question.
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Originally Posted By: strombony
Heck if I know.. How would such a reputable company such Shell make that claim?
Hey, pal ..it's assured to be just as true as Castrol's "90% of engine wear occurs at startup!"
They just don't tell you that startup is about the first 20 minutes
Heck if I know.. How would such a reputable company such Shell make that claim?
Hey, pal ..it's assured to be just as true as Castrol's "90% of engine wear occurs at startup!"
They just don't tell you that startup is about the first 20 minutes
Using a taxicab as a measuring rod of success in engine perfection is like pointing to an old tire in your front yard and saying "yep, that tire is why my house has never been struck by lightning". It's not an accurate portrayal of everyday engine wear.
Taxicab engines usually run warm all day and night. The oil is constantly heated, thus no start up wear and tear. Most of my old cabs went to around 500,000 miles without a rebuild. Usually they looked spotless inside the motor regardless of the oil used.
I'm not knocking Shell's integrity, but then again they do own Slick 50.....
Taxicab engines usually run warm all day and night. The oil is constantly heated, thus no start up wear and tear. Most of my old cabs went to around 500,000 miles without a rebuild. Usually they looked spotless inside the motor regardless of the oil used.
I'm not knocking Shell's integrity, but then again they do own Slick 50.....
I have no doubt it does some cleaning, but as to how they did the test I have no idea. If you talking about hard baked on thick sludge like we have seen under some valve covers, no I doubt it would do anything to clean that. If your talking about light sludge deposits inside the engine, yes, it probably would clean some of it. Hey, at least they did not say that they were 4-times better than Mobil 1.
I agree with Johnny, it really depends on the engine and the type of deposits. Having said that, I believe in the cleaning ability of Pennzoil Platinum. Our dad owns a Isuzu Trooper with 139,000 miles, almost all of those miles using Amsoil in the crankcase. Every time we changed the oil, I would peer down the oil fill hole with a flashlight. What little I could see of the camshaft always looked good, no sludge or varnish at all. Well, a few thousand miles ago we switched from Amsoil to PP. I wondered if I would see any differences between the two oils, so I have been looking down the oil fill hole quite frequently. I can safely say that since we started using PP there has been OBVIOUS cleaning. What is most visible is the metal directly below and to the left of the oil fill hole. It has a thin layer of dark brown deposit. It now has streaks of clean metal showing through the dark brown residue. Due to its location, which seems to be out of the direct path of oil flow, I assume that it is still getting splashed by the oil from the camshaft as we drive. The cleaning has been so gradual that I wasn't sure at first, but I just checked it before I started writing this post, there is definitely clean metal showing through what used to be a solid layer of dark brown residue. Not only that, the other metal that I can see, that didn't have any deposits or residue to start off with, is now so shiny and clean it looks as if somebody took some chrome polish to the metal.
So, yeah. I'm a believer in Pennzoil Platinum.
So, yeah. I'm a believer in Pennzoil Platinum.
I thought Pennzoil created 15% of the existing sludge during the first oil change?
Now Drew, there you go thinking again.
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