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post #11 of 16 (permalink) Old 9th February 2013 Thread Starter
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Re: Fill fuel tank?

Aircraft I know a bit about.
It really is a different topic. the weight of a gallon of gasoline(imp gallon )7lbs imperial might be closer than 10lbs which is H20 well you can do googles on that.
Aircraft fuelling is all done in terms of sg weight/depending on the fuel type and not volume,but thats another story

Im really more interested in the hygroscopic dropout in a 1/4 full tank of diesel vs a full tank.
On a long journey you could argue the benefits of not having to stop vs finding a fuel station and the commensurate slowing down vs maintaining a constant speed compared to having a full tank at the start..or even the saving where you have to break your normal journey to refill your tank..unless you were going to the garage anyway to buy a "chicken wrap"

Refill the car at the end of the journey.or before you do the return leg.with the warm air that is sucked in being moisture laden or not depending on garaging/local conditions..

No I just mean: is there a definitive benefit in having your tank full of fuel all the time in a motor car,in terms of having less mositure absorbtion from the volume of air in the tank or peoples experience or ref articles?

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Last edited by coup; 10th February 2013 at 12:05 AM.
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post #12 of 16 (permalink) Old 10th February 2013
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Re: Fill fuel tank?

What about using water absorbtion additives for fuel like Wynn's Dry Fuel (for both diesel & petrol engines).
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post #13 of 16 (permalink) Old 10th February 2013
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Re: Fill fuel tank?

Are modern car fuels not laden with different additives to protect the fuel system/engine from damage? Or so the manufacturers would have us believe anyway.
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post #14 of 16 (permalink) Old 10th February 2013
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Re: Fill fuel tank?

no, not all. most will put additives in, but you gets what you pay for.
get cheapo fuel and expect the car to run rougher with the risk of more engine related problems.

there is a big difference between the cheapest supermarket fuels and the silly priced premium fuels.

do you often see high end luxury sports cars filling up at Asda with cheapo unleaded?
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post #15 of 16 (permalink) Old 11th February 2013
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Re: Fill fuel tank?

And light aircraft have rubber bag type fuel tanks that need to be kept full to prevent shrinkage.

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