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Old 10-08-2012, 03:53 PM   #2
md2009
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Quote:
Originally Posted by felixthecat View Post
So whats the story w/ Pennzoil advertising their ultra/ platinum synthetic oil runs cleaner than Mobil 1/ Valvoline synpower/ Castrol edge w/ syntec? Do they have more detergents in their oil over the other's or what?
Well. I would say they do have a better advertising budget...

But in all seriousness, there are a couple of ways to approach this subject.

First - would could look at virgin oil analysis (VOA) and determine what they are using for additives. The plus side is that we would have an idea of what is going into the oils. The down side is that a "good" VOA may not translate to a good oil analysis - meaning the oil may show good properties during the clean analysis but may have the same (or worse) wear as a differently formulated oil. Finally, there are some additives which may not show up during a VOA. Most famously is Valvoline, which seems to use some additives which don't show up during VOAs. Yet, somehow people still seem to get decent oil analysis out of these oils... so is it a lack of additives, or just different additives? Only the scientists with the proprietary information will ever know..

Second - oil analysis. Run theirs for 8500 and then sample, then run mobil 1 for 8500 and sample. Its not 100% scientific, but it does give a CLOSER idea of which oil is working better.
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