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[Andy B]

Brimming also means carrying extra weight. Extra weight also equals less MPG. Have you ever tried picking up 10 gallon let alone nearly twice that.

 

Life's too short for standing next to a fuel pump just putting half a tank in. 

[flyer 0712]

A guy from shell oils last year stated .....never fill tank to brim if you dont do many miles,as to carry all that extra weight in fuel will cost you money......the more petrol that you put into an empty tank you get more fumes bouncing back out of the tank...thus loosing money..never fill up when it is a very hot day,wait until evening then you will loose less fumes thus keeping more petrol in your tank...If you ask me it is a lot of crap.......its your driving style that will produce the results....

[waspy]

Brimming also means carrying extra weight. Extra weight also equals less MPG. Have you ever tried picking up 10 gallon let alone nearly twice that.

 

Life's too short for standing next to a fuel pump just putting half a tank in. 

So only put half a tank in, that way more time for driving

[Kevin Wood]

A guy from shell oils last year stated .....never fill tank to brim if you dont do many miles,as to carry all that extra weight in fuel will cost you money......the more petrol that you put into an empty tank you get more fumes bouncing back out of the tank...thus loosing money..never fill up when it is a very hot day,wait until evening then you will loose less fumes thus keeping more petrol in your tank...If you ask me it is a lot of crap.......its your driving style that will produce the results....

Yep, petrol tanks are not allowed to be vented to the atmosphere any more, so any fumes (and a half full tank will generate more than a full tank) will get sucked into the engine via the purge valve and burnt. They aren't wasted.

[D]

Full tank = 70L
Specific gravity of petrol is approx 750
So full tank = 50kg ish
Less than the weight of an average OOfer.
Half a tank = 25kg
You cannot be serious about mpg and 25kg?

[I_want_an_Omega]

Full tank = 70L
Specific gravity of petrol is approx 750
So full tank = 50kg ish
Less than the weight of an average OOfer.Half a tank = 25kg
You cannot be serious about mpg and 25kg?

Would have thought all OOFers actually ..........