The perfect oil.
08-03-2008, 04:38 PM
#181
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150xxx. I dont burn an ounce of oil. I dont have one single leak. PP 10w30. Piston slap only for the first minute or so of cold idle. Mobile 1 and royal purple tend to have more piston slap issues. Plus price.. and shearing ...
08-03-2008, 05:45 PM
#182
German Castrol uses absolutely no group 3 in it, and Pennzoil Platinum uses the highest quality group 3 which is so close in performance to group 4/5 that it's too close to call. My oil analysis results have proven Pennzoil Platinum to be an extremely good oil with low engine wear.
08-03-2008, 08:40 PM
#183
TECH Senior Member
In my car the oil analysis with both oils are very close, with maybe a very slight edge to GC, but it's honestly too close to call. Keep in mind though, this was with the older green formula GC, I never did run the newest gold formula of GC.
08-04-2008, 02:32 PM
#187
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What is PP? sorry didn't want to read all the pages but i noticed alot of guys are runnign 5w30 ????? On my 2000 SS the oil thing says 10w30 so I put in mobil 1 10w30. I also have some piston slap, there's an oil that will help aleviate that?
08-04-2008, 02:34 PM
#188
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Pennzoil and Quaker State merged in the late 90's. Since then they were both bought up by another company. I believe Chevron? From what I understand Pennzoil and Quaker State are close to the same product.
08-04-2008, 08:21 PM
#191
TECH Senior Member
I'm running Pennzoil Platinum now.
To answer the question above about the merger, it was Shell that bought out Quaker State and Pennzoil, however the three different brands of those oils still retain completely different technical teams, and are three completely different formulas of oil.
To answer the question above about the merger, it was Shell that bought out Quaker State and Pennzoil, however the three different brands of those oils still retain completely different technical teams, and are three completely different formulas of oil.
08-04-2008, 09:09 PM
#193
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I'm running Pennzoil Platinum now.
To answer the question above about the merger, it was Shell that bought out Quaker State and Pennzoil, however the three different brands of those oils still retain completely different technical teams, and are three completely different formulas of oil.
To answer the question above about the merger, it was Shell that bought out Quaker State and Pennzoil, however the three different brands of those oils still retain completely different technical teams, and are three completely different formulas of oil.
That's interesting. I have one UOA with Pennzoil, and am running Quaker State now. I want to get a few more hard trips through the gears before I send a sample off to compare the two.
What's your feelings about the lower levels of moly, zinc, and phosphorus?
08-04-2008, 10:22 PM
#194
TECH Senior Member
The lower levels of zinc and phosphorus are not a problem with roller cam engines, they've upped the levels of other anti wear additives to compensate and they are doing a great job. For some reason the lower levels of zinc and phosphorus are a problem for flat tappet cam engines though, so the new SM rated oils are not recommended for use in them.
08-05-2008, 08:19 AM
#195
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The lower levels of zinc and phosphorus are not a problem with roller cam engines, they've upped the levels of other anti wear additives to compensate and they are doing a great job. For some reason the lower levels of zinc and phosphorus are a problem for flat tappet cam engines though, so the new SM rated oils are not recommended for use in them.
A tech at Pennzoil explained to me , zinc and phosphorus make a "sacrificial" layer between engine components preventing metal to metal contact.
08-05-2008, 08:59 AM
#196
TECH Senior Member
Moly is probably the most common one, but they also use boron, barium, sodium, calcium, magnesium and antimony. There are also other additives they put into the oil that a typical oil analysis won't show either, as oil companies are experimenting with new ways to reduce engine wear all the time. I've even heard of titanium being used as an anti wear additive!
08-05-2008, 05:24 PM
#199
TECH Senior Member
That wasn't my initial motivation for switching, no. I just simply wanted to try something different and with all the great oil analysis results other people were getting from PP I thought it would be a good choice. I also like the fact that PP is on GM's approved list for the 4718M specification for new Corvettes, so if I'm lucky enough to get a new C6 someday I could run Pennzoil Platinum without fear of warranty issues.
08-05-2008, 06:49 PM
#200
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Moly is probably the most common one, but they also use boron, barium, sodium, calcium, magnesium and antimony. There are also other additives they put into the oil that a typical oil analysis won't show either, as oil companies are experimenting with new ways to reduce engine wear all the time. I've even heard of titanium being used as an anti wear additive!
I didn't know calcium, and magnesium were anti wear additives. I thought they were detergents?