Pennzoil Platinum 5W30, 5320 miles, Lexus RX330

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110K miles on our RX330. I use Pennzoil Platinum 5W30 in the winter and 10W30 in the summer. Pretty sure this run was 5W30. I change the oil every 5K and change the filter every 10K. I usually use Mobil 1 oil filters, but got the Autozone special this time and used a K&N. The air filter is Toyota OEM and I usually change every 15K. BTW, the first run on 3/9/06 was Mobil 1 EP. The others have all been PP. Appreciate any comments.
 
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Retired | Wausau, WI
 Originally Posted By: badtlc
Is this another UOA of PP 5w30 shearing to a 20wt?
No, it's not. Vis was 9.35 which is in a 30WT range. Anything from 9.1 to 11.3 is a 30WT.
 
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KC
 Originally Posted By: Johnny
 Originally Posted By: badtlc
Is this another UOA of PP 5w30 shearing to a 20wt?
No, it's not. Vis was 9.35 which is in a 30WT range. Anything from 9.1 to 11.3 is a 30WT.
Ah, the viscosity charts on this site showing that as being the very tail of 20. Guess they need to correct those.
 

newtoncd8

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For me, it is easier to track the interval because I also rotate the tires at each 5K change. At $20 for the 5 qt bottle of PP, it is just makes sense to run the interval at the current regimen. I figured I would get a few warnings about the fact that I needed to change my filter at every change, vice changing every other 5K interval. Also, I realize Tufoil isn't necessary, but do you guys think it helped the oil hold its viscosity or was it simply that I had only run the oil to just over 4,000 miles (ref: the 12/15/07 entry)?
 
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Retired | Wausau, WI
Curtis, I do the same, every 5K. It does make things simple like the tire rotations and other services. I also change my filter at every oil change. I personally do not think the Tufoil helped in any way.
 

FZ1

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Nice runs,nice engine. 5k is a good oci for you but no need to stick foreign objects (Tufoil)in your engine.
 
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 Originally Posted By: Curtis Newton
For me, it is easier to track the interval because I also rotate the tires at each 5K change. At $20 for the 5 qt bottle of PP, it is just makes sense to run the interval at the current regimen. ....
You could accomplish the same thing with the $10.50 5qt Quaker State and pocket the money.
 

newtoncd8

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 Originally Posted By: badtlc
You could accomplish the same thing with the $10.50 5qt Quaker State and pocket the money.
That's okay, since we moved closer to the Denver metro area, the commute is much better. Thus, the extra $10 every 6 months doesn't kill our budget.
 
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