Usa
 

All cars in usa have metal filler necks and metal nozzles. So the car is connected to the pump. Also usa tires are conductive and concrete around pumps is also conductive. So as long as one fills up at a gas station in usa, grounding is automatic. Hence the warnings to make sure extra fuel containers are on ground when filling. The real trouble comes when one fills up away from a gas station using cans. Way back when, a car manufacturer tried using a plastic filler neck. Within a few months there was a recall to replace with metal filler necks as I recall.

I have 8 of the plastic Jegs Jugs I use, and yes - they fuel fast! However, I am not using them for Avgas - keeping Jet A in them to top off when I need it. No special grounding seems to be needed for the kerosene (and the jugs are blue, not red....much cheaper that way!).

Paul

Not the Cost
 

I can purchase high octane no ethanol in Mv but buying it, hauling it and hand fuelin the RV12 from cans I don?t like. Doesn?t have anything to do with price and everything to do do with convenience.

Put 12 gallons of 91 Mogas in a friends RV-12 on Saturday. Price per gallon, for premium (it was Conoco fuel at a Costco very near the airport) $3.399. This is in So CA, our road tax on gasoline makes me sick, and our roads are still some of the worst in condition in the lower 48.

Price at airport, last time he was in a hurry and paid the pumper to meet him at his hangar $5.69 a gallon. Usually $5.29 at the pump on the tarmac, and it pumps slow as molasses.

I bought a nice breakfast for both of us with the savings on Mogas.

I have old 6 gallon plastic cans with vents on the top side when pouring. I make sure to touch side of can to fuselage to ground out before I start pouring, as it's unpainted aluminum.

Yes, it's a little more work, and yes I am quite frugal, and Dutch, not Scottish, so almost as bad!

https://flofast.com/product/flo-fast...gallon-system/

I am almost ready to order this dual Flo-Fast 7.5 x 2 containers with a high quality hand pump and cart. Expensive at $519 but my choices are getting limited. My other choice is having a RDS 60 gallon DOT Aluminum Transfer Tank installed in my Nissan Frontier for $1399 ++ all in about $2000 with shipping and install.

go with the Flo Fast ....problem solved...

See... http://www.vansairforce.com/communit...35&postcount=1

Been using a Flo Fast setup for about 6 months, I have 3x 10.5 gal cans, and the ?pro? pump which is said to be more robust and leakfree than the standard. It pumps about 1 gal per 10 rotations. I?ve found the 10.5 gal jugs easily hold 11gal usable with room to spare.
My concern with hauling fuel was cleanliness, so I set it up with a real canister filter (Hydrasorb) on the pump output. The pump has plenty of pressure to flow through the filter. I also got the filter foot thy offer for the pump as an extra layer of protection.

Not applicable for your 12, but I figure my savings over 100LL at my airport pump to be about $15/jug.

Plastic
 

If the plastic cans are somewhat conductive they would better than metal cans because that would allow for slower discharge (no spark).

With can in one hand I always trouch the filler tube to the filler neck and keep the tube in contact with the filler neck while fueling, preferably with a finger in there too. So you have a ground path trough your body (can handle to filler neck) as well as filler neck directly to can tube.

Probably emptied 1,000 5-gallon cans into RV-3's over the years. But I do live in Florida: high humidity -- less chance of static build-up.

Finn

You supply the 5 gallon containers, fuel and batteries, but considerably easier on the wallet. 5 gallon jugs are a lot easier on the back at a little over 30#'s each, loading and unloading when full, out of the hatch of a SUV or truck.

https://www.amazon.com/gp/product/B0...3M3G048HD4Z3J8