Is Costco gasoline good? (purchase, Audi, diesel, California)

[fattypatty]

BUT, does Costco use AMERICAN Gasoline or foreign?

[texdav]

Gasoline except for the additives which are added at the tankers locations are all tested to the same standard. But not all tanks below ground are as well maintained as others. That is a reason to aviod mnay older 7-11 type convenience not maintain by a corporation. No dealer has the abilty to actaully test gasoline ;it take a lab with the right equaipment;so I doubt that story about dealer testing for qaulity. Maybe to lok for water perhps or smeell for age but not much else.

[Steve Bagu]

Makes NO DIFFERENCE whether a underground gas tank is NEW or OLD.

Water is heavier then gas as such settles to the bottom of any tank...be it the gas station or your personal car.

Many older gas station underground tanks have rusted some and gas does leak into the ground. This is why any old station that has the old tanks removed will show extreme rust. I have seen this as probably have others.

Rule of thumb...NEVER by gas when a tanker is dumping their fuel into the tanks. A low tank will have the water churned about mixing with the new gas and VOILA...your car is running rough.

I saw this with some of my customers complaining of their car running rough after I did a tuneup. It was not me but the gas they put in their tank.

[RedNC]

One of the requirements when delivering gas is to check for water. If you find water you are required to notify your dispatch and definitely do not drop any gas until the water is removed.

[ghostrider7811]

I drive about 400 miles a week. I use Sam's Club most of the time. I never have had a problem in the 5 or so years I have used it.

[us66]

I'm pretty sure Costco and Sam's in my area share the same supplier.

[d4g4m]

Gasoline is gasoline. It all comes from the same fuel tank farm in your area. No matter the brand. It's a reason you will never see brand names on the delivery trucks. They will deliver 2000 gals to Costco, drive down the street and deliver 2000 gals to the BP station and the remaining 1000 gals to a Mobil station. 87 octane gas is 87 octane gas everywhere at every gas station in the U.S.

[RedNC]

Originally Posted by d4g4m

Gasoline is gasoline. It all comes from the same fuel tank farm in your area. No matter the brand. It's a reason you will never see brand names on the delivery trucks. They will deliver 2000 gals to Costco, drive down the street and deliver 2000 gals to the BP station and the remaining 1000 gals to a Mobil station. 87 octane gas is 87 octane gas everywhere at every gas station in the U.S.

BP gas is picked up at BP and delivered to BP stations.
Here in NC it all is piped in from LA to all the terminals in a little place called tank town. Some terminals are, BP, Citco, Marathon, Exxon, Motiva to name a few.
Any split deliveries would be picked up for a specific brand or store and delivered to the same store chain.

[Steve Bagu]

A company truck (Mobil etc) will have the name and Logo on it's side.

There are many Black tankers that drop off gas during the night to avoid the day traffic.

As to the octaine of the gas...it is always higher inittially coming off a boat to the holding tanks before distribution. A percentage of the octaine evaporates during this transfer and what goes to the gas station is rated at the guaranteed min of 87 octaine or higher for that matter.

Ever see a person putting gas into their car and the visibility of the vapor going into the air?. That was a long time ago before the now rubber seal on the spout.

[RedNC]

Originally Posted by Steve Bagu

A company truck (Mobil etc) will have the name and Logo on it's side.

There are many Black tankers that drop off gas during the night to avoid the day traffic.

As to the octaine of the gas...it is always higher inittially coming off a boat to the holding tanks before distribution. A percentage of the octaine evaporates during this transfer and what goes to the gas station is rated at the guaranteed min of 87 octaine or higher for that matter.

Ever see a person putting gas into their car and the visibility of the vapor going into the air?. That was a long time ago before the now rubber seal on the spout.

Don’t know where you are from, but here in Charlotte, NC, there are no gas station company trucks.
You won’t find any, Mobil, Exxon, Shell, BP, etc. tanker trucks. Some exceptions are Love’s, Pilot, Flying J, Circle K stores. These have some dedicated trucks with store logos, but depending on demand there could be deliveries from trucks other than dedicated ones. All the rest deliver to whatever stations the trucking company has a contract with.
There are no “Black tankers”, fuel is delivered when it is needed, day or night, 365 days a year.
Underground Pipelines deliver the fuel to the tank farms, where it is blended to make Premium, Plus, or Regular. Here in NC all gas is blended with 10% ethanol.

NC does not require seals on fuel nozzles yet, but I’m sure they will in the near future.