UNOCAL 100 has no ethanol. - The Unofficial BMW M5 Messageboard (m5board.com)

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UNOCAL 100 has no ethanol.

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23rd August 2001, 03:59	#1
HBRAMSTEDT m5board.comoholic (>1000 posts) Join Date: Feb 2001 Location: ARCADIA, CA U.S.A. Garage: Sales Feedback: (0) Thanks: 0 Thanked 0 Times in 0 Posts	UNOCAL 100 has no ethanol. I talked with Unocal racing products technician again today. He confirmed the the 100 octane gas is formulated with NO ethanol at all. It contains 2.7% oxygen by weight, and 15% MTBE, but no ethanol. The AKI is 100. He confirmed to me that the power difference, once octane requirements are satisfied, come from a FASTER, not slower, burning mixture. This is reflected in what he referred to as the distillation point of the fuel. The faster burning mixture exerts more force in a given period of time. Again, UNOCAL 100 burns faster than the lower grades available at the pump. He said that UNOCAL has no plans of discontinuing this fuel as a product, and is fully compatible with the fuel specs. given by BMW.

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