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      04-18-2013, 09:23 AM   #19
Meeni
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Drives: BMW 330i 06
Join Date: Apr 2012
Location: TN

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Quote:
Originally Posted by pylt View Post
Gas isn't much of a factor as we use Top Tier gas, as recommended.
Top tier gas has a better additive package. This is good and all.

But most gas station in the US have their tank contaminated with water. Ethanol gas is especially prone to capturing water and separating in layers if kept still too long. Even good brand gas stations can have this issue, it has more to do with the location itself than the brand.

The fact that the problem is present only when the tank is almost empty points to water contamination and/or bad ethanol gas to me (that is, gas in with petrol and ethanol have separated and are no forming 2 layers, one being normal fuel, the other one more or less pure alcohol).

May not be that, but it is the simplest thing to try and cost nothing. Good luck finding!
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