Thickest 10W30 High Mileage Oil ?

Pennzoil motor oil
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ChrisD46

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Between Valvoline Maxlife , Pennzoil High Mileage and Mobile Super High Mileage (all 10W30's) - in what order rank would they be from thickest to thinnest within the 30 weight range ?
 
I would avoid anything selling oil with the word Mobile on it. Unless it came from Mobile Alabama or something.
 
Of the three you listed, the Pennzoil has the highest viscosity spec at 100 degrees C and the Mobil has the lowest.
 
You want to look at HTHS to evaluate "thickness". Valvoline and Mobil High Mileage are both Resource Conserving and no thicker than any other typical 10w30 with an HTHS of about 3.1. Pennzoil High Mileage is thicker at 3.3, so is Quaker State Defy 10w30 and Mobil 1 High Mileage (Full Synthetic not Super) is the thickest at 3.5 IIRC.

Unfortunately the trend the last few years has been to thin out High Mileage oils. Valvoline, Mobil and Castrol have all done it although Mobil has not messed with the Full Synthetic version. Castrol GTX High Mileage used to be the thickest High Mileage oil but no more.

Another "thick" 10w30 option is Rotella, Valvoline Premium Blue or Delo 10w30 HDEO's, all have an HTHS of 3.5.
 
Originally Posted By: ChrisD46
By the way - good luck finding PDS for Pennzoil High Mileage oil .


I printed one a couple months ago, is it no longer up?
 
Thanks all - I now see you have to go to Shell site to get Pennzoil specs as Pennzoil site does not include (where I could see) ...Go figure .
 
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