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Old 08-29-2008, 01:25 PM   #12 (permalink)
PaleMelanesian
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Join Date: Dec 2007
Location: Texas
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PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

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Thanks! I've actually been looking for that report. I'm saving it now, for later reference.

Quote:
Of the 20 oils we tested, nine were conventional 10W-30 oils, and eight were 5W-30. We also tested two synthetic oils, Mobil 1 and Pennzoil Performax, and one synthetic-and conventional blend, Valvoline DuraBlend; all three were 10W-30 oils.
...
One distinction: According to the laboratory tests, Mobil 1 and Pennzoil Performax synthetics flow exceptionally easily at low temperatures - a condition our taxi tests didn't simulate effectively. They also had the highest viscosity under high-temperature, high-stress conditions, when a thick oil protects the engine. Thus, these oils may be a good choice for hard driving in extreme temperatures.
So, the 10W synthetics flowed better at low temperatures than the 5w conventional oils.

As for the high end of the temperature range, I live in Texas...
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles

Last edited by PaleMelanesian; 08-29-2008 at 01:33 PM..
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