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Old 05-09-2006, 01:49 AM   #1
Alan
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Question Flex Fuel Subaru?

Anybody heard ANY rumours on when or if Subaru will start making US cars that can run on higher ethanol blends. Turbo cars work well on richer ethanol blends as the higher octane can be taken advantage of with more timing advance. But the ECU has to be optimized to recognixe the fuel and not throw a CEL for overly lean mixtures due to the extra oxygen in the alchol. A reflash or reprogrammed ECU ought to be able to deal with it, as it's likely the fuel system is ethanol tolerant since it's certified for E10.

Just wondering - since it will also let Subaru get a boost in the CAFE ratings, which it needs.
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Old 05-09-2006, 03:05 AM   #2
silentbob343
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Old 01-01-2011, 03:16 PM   #3
wrxkyle
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any current chatter on whether SUBARU will be releaseing flex fuel vehicles? aftermarket tunes are not flex fuel, you can run either E or gas but you can't indescriminantly mix between the two like true FFV's can.

it would be great to see cause then we would have E85 sensors and ecu's that could be tuned for varying mixtures.
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Old 01-01-2011, 04:37 PM   #4
arghx7
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It's hard to say. There's an ethanol backlash brewing in the US. That makes it less likely. But yes you are right, if you look at how the GM flex fuel vehicles work there are correction tables based on % ethanol in the tank.
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Old 01-01-2011, 06:33 PM   #5
Kostamojen
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My closest gas station has E85 and its 20 cents cheaper than any other fuel right now... I'd kill to be able to use it!
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Old 01-01-2011, 07:58 PM   #6
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of course it's 20 cents cheaper. the federal government subsidizes it.
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Old 01-01-2011, 08:25 PM   #7
wrxsubaru
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Quote:
Originally Posted by Kostamojen View Post
My closest gas station has E85 and its 20 cents cheaper than any other fuel right now... I'd kill to be able to use it!

It is cheaper, but you also get worse gas mileage. E85 has much less energy per gallon than traditional unleaded.
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