Matt,

According to Wikipedia: "Avgas has a density of 6.02 lb/US gallon at 15 °C".
Not sure how 'correct' this is.

Hilton


"Matt Whiting" wrote in message
news
Hilton wrote:
1. Go on a diet
2. Define a gallon of 100LL as weighing 5.82 lbs instead of the usual 6
lbs - Mooney did it.

Is this legal/valid? If so, why don't all manufacturers do it?

Yes, diets are completely legal and valid and most of us should do so.

Mooney didn't "define" a gallon of 100LL to weight 5.82 lbs, that is what
it DOES weigh. Someone else "defined" it as 6 lbs many moons ago to
simplify calculations. If Mooney is doing as you say (I didn't take time
to verify), then they are just being more precisely correct, if more
impractical for their pilots.


Matt