There are so many variables that might be involved in your calculations regarding 1/2 a tank and 1/8 of a tank, i.e.: Was the air pressure in your tires the same both ways of travel? Did the relative ambient temperature remain constant? Did you purchase the gas at the same vendors during both legs of the trip? Are you certain that your engine did not develop any changes while traveling? Did you stick to the same octane rating on all the gas you purchased? I'm just trying to point out that it could one or many factors. Gas stations are a highly regulated business by many governmental departments- I doubt anyone was tainting their gas.
I meant the made it to my 1st destination from a full tank to 1/8 tank.
All conditions were the same. No change in weather, pressure, etc. I used the same octane as before. I seemed to get better milage from an exxon station but I don't remember where I filled up the first time.
I do remember that the first station was inside the city and the Exxon station was along Interstate 10 in Louisiana and not in town. I was thinking that since people develop habits of going to the same station to fill up that it would benefit them to come back as much as possible rather than a station along the highway where you get fuel as soon as you need it.
Wind direction is the likely answer. I have achieved nearly 4 additional MPG going one way, and lost it on the return trip.
Additive : halogenated additive Filler : Aluminium Hydroxide (ATH)
Calcium carbonate is used as a filler additive in PVC.
It is the nozzle you insert into your fuel tank filler neck to pump gasoline into your vehicle.
stuffing, padding, filler, wadding, insides, contents
It goes where you put the gasoline, in the filler neck.
Filling pass is a welding process which function to filling filler metal inside welding groove before capping process be execute
You can not. There is an anti siphon valve in the filler neck.
Higher than the pot you are going to be filling?
Filler neck to the gas tank
The most traditional method of filling cracks and holes on a surface before decorating.
Open fuel filler door, remove gas cap, turn on pump, insert gasoline nozzle into fuel filler opening, squeeze handle and fill tank.