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Old 11-05-2019, 02:16 PM   #21 (permalink)
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I generally don't run to completely E either, some people believe it's hard on the fuel pumps as the motor is no longer submerged in fuel acting as coolant for it. I don't concern myself with that, I just know where gas is cheaper and watch my range so I can make it back there.

Ethanol content can affect your MPG some, E10 has about 4% less BTU's per gallon, some cars follow the energy to mpg curve and will lose 4%. Others don't.

http://www.speedperf6rmanc3.com/cont...evel_Study.pdf

In that study one of the cars they used a 07 Camry 2.4 and ran different ethanol blends and recorded MPG and more. It actually got the best fuel economy running E30.

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Old 11-07-2019, 01:14 PM   #22 (permalink)
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Quote:
Originally Posted by Galvatron1 View Post
Does cheap fuel rob MPG?
Ethanol content and quality will affect MPG

The expensive premium grades that some companies like to advertise - like Shell's V-power - have been tested here in Belgium, and while they actually do offer a slight MPG advantage, this simply doesn't offset the equally premium price for it.

(Premium petrol works better to reduce MPG, than premium diesel BTW)


If you can get the big brand stuff for the same price, go for it


In Europe, there's also little benefit when running 98 RON instead of 95 RON


Quote:
Is it true running your tank all the way to empty can bring up sediment deposits into your engine & damage it?
That's what your fuel filter is there for

And there should be much goo at the bottom of the tank anyways .

Quote:
What's the lowest you feel comfortable running your gas tank to?
I usually fill up whey the light comes on
Sometimes a bit earlier, sometimes a bit later

I don't mind running it down to an estimated 10-20 miles remaining range either

Unless you let it idle for ages, which an ecomodder wouldn't do, you can't run the fuel pump in a very low fuel condition for very long, or you'd run out of fuel

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