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Old 06-24-2010, 07:34 PM   #20
boxster_s_boy_34
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Join Date: Oct 2008
Location: Milford, Ks.
Posts: 73
Here is the break down of synthetic oil as I understand it. You have 5 classes of synthetic oil. The first 2 classes of oil are conventional oil that has been Hydracracked ( realigning of the oils molecules to make it better and more durable) with a synthetic addative to aid in burning and breakdown. The next 2 classes, 3 and 4, are also Hydracracked with more addative in them (not sure of percentages) to make them even better yet. The last class of synthetic oil, class 5, is a true fully lab made synthetic. The only oils that I'm aware of that are class 5 are Redline, AMS oil (short for ametures oil in my opinion), Torco t4-r and straight weight Mobil race oil. Mobil 1 is a class 2 at best. I personally use Royal Purple which is a class 4 because it is affordable ($9 a quart) and gives plenty of protection in my eyes. I cannot justify $15 a quart for some of the class 5 oils that are out there.
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-Jeff-
"I'm a glutton for punishment when it comes to my boxster"
'03 S/ PSS9/ B&M short throw/ EVOMS intake/ NHP full exhaust w/ headers / Cantrell MS custom tune
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