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      08-07-2015, 03:34 AM   #21
JupiterBMW
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Drives: '11 E90 M3 & '13 F25 X3
Join Date: Aug 2012
Location: Jupiter, FL

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Quote:
Originally Posted by P1et View Post
I actually never fill my tank all the way to full. I usually do half or 3/4 of a tank. My theory? Less weight in the vehicle, better performance...

A 1/4 tank is roughly 5 gallons? Let's assume gas weighs about 7 pounds per gallon (lighter than water)... So we're talking about 35 pounds... Call it 40 to be on the safe side...

40 pounds in a 5000+ lb vehicle, or less than 1% of the total weight... Not going to make a difference my friend. Sorry to burst your bubble, you're just making more frequent trips to the gas station.

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2018 F15 X5d Carbon Black/Nutmeg Individual- Oil Burner Tow Rig
2013 E82 1M3 Carbon Black/Black- S65/DCT Track Toy
2013 F25 X3 35i Alpine White/Chestnut- German American Family Hauler
Past: '11 E91 335is, '11 E90 M3, '10 X5M, '14 328d, '03 330i Dinan3 ZHP, '04 330i ZHP, '12 X3 35i
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