05-26-2004, 08:20 AM
Nuke'em til they glow!
Join Date: Nov 2001
Location: Gaithersburg, MD
Feedback Score: 0 reviews
Virgin Oil Analysis: Valvoline Synthetic Maxlife
Valvoline Synthetic Maxlife 10w30 Blackstone Lab test results.
This samples shows 2ppm of iron, which could possibly be from corrosion in a storage or transfer tank or other handling equipment. This is a common find in virgin oil and not a problem. The TBN was strong at 10.2. TBN readings usually start out arounf 10 to 12 and decline as the oil is used, showing that the additives are being depleted. If the oil is run for a long extended use, the TBN can get down to 1.0 or lower, which is considered a low reading. Molybdenum is an anti-wear additive, same for zine and phosphorus. Calcium is a detergent/dispersant additive.
SUS Viscosity @ 210F: 64.6 [High end of SAE 30w oil range]
Fuel/Antifreeze/water/insolubles: 0 (as expected)
Well, the Valvoline Synthetic Maxlife is very similar to my UOA of Castrol GTX Highmilage 5w30. Aside from the fact that the Castrol had a significantly lower flash point (390F)...
Going solely by flashpoint, I'd have to say that this oil appears to actually be a synthetic base (POA or Ester), or have some REALLY good additives to prevent burning.