[mitmaks]

Anyone else have problems with costco gasoline? I started filling up with it since Ive got their card a bit ago. One day my car was running bad, so Ive replaced fuel filter, ran a bottle of injector cleaner. It went away, now it's starting to do so again. When I try to get on freeway or accelerate fast it just stutters, also when climbing on a hill it will just stutter. Maybe I'm just getting bad gasoline?

[dinger]

Having dealt with Costco in the supply end of things, I have found their standards above and beyond many of the retailers. I would express any concerns to their office and see if anyone else had a problem. I use their fuel often, never had a problem.

[JeffB]

Funny you should bring that up,my grandaughter used the wifes' car and since her Dad has a Costco membership she filled up there.It started running crappy and the mileage was noticely bad .I put injector cleaner in it too and refilled it with Shell within a couple of miles it was running good and smooth again,makes one wonder?

[carsavvycook]

I have many customers, and friends that purchase their fuel from our local Costco, and I have never heard any complaints. My work consists mostly of diagnostics, and tuning, including power tuning. The only fuel I have seen running problems with, has been purchased at a local Arco.

I also heard on the radio, that fuel has been being stockpiled, and I wonder during this recession, if it just might be getting 'stale'...............................rotten for that matter.

[joe_padavano]

I've been using Costco gasoline in all my cars for about 10 years now with no problems. Mileage is a little lower due to the 10% ethanol, but now all stations around here only sell E10, so even that doesn't matter anymore.

[alittle1]

Had a neighbour who lived down the lane who had a similar problem with his car. Turns out he gave the kids down the lane a hard time, so they were p*ssing in his gas tank. you didn't make someone mad, didja!

[jaguarxk120]

With the volume that Costco sells its very doubtful that you got bad gas. Their turnover is so great that the tanks are being filled more often then the station down the street. Also the gas they sell comes from the same depot that most of the area stations sell.

[carsavvycook]

Originally Posted by jaguarxk120

With the volume that Costco sells its very doubtful that you got bad gas. Their turnover is so great that the tanks are being filled more often then the station down the street. Also the gas they sell comes from the same depot that most of the area stations sell.

I do understand, and know this fact. I also know where the truckers fill their trailors fairly close to here. It is my understanding, that the trucker has to add the 'additives' for which gas station they are delivering to. I was told this by a trucker years ago, whose oldest daughter...................asked my father what makes me 'tick', his response was "don't ever try to figure him out, I havent been able to yet". LOL

[302 Z28]

Originally Posted by carsavvycook

It is my understanding, that the trucker has to add the 'additives' for which gas station they are delivering to.

I find that extremely hard to believe. Why in the world would a gasoline manufacture, or vendor trust that a trucker would be diligent enough to properly add additives.....makes no sense at all. Additives are added at the point of refining, just ask anyone that makes a living at a refinery.

Vince

[T-bucket23]

I have a friend who drives tanker and he delivers to a lot of different stations and the gas all comes from who ever is selling it cheapest on any given day. The only exception is sunoco, they do still blend at the pump from what I have been told.
I always try to buy my gas at a busy station. I am not brand loyal and tend to try to frequent the independent stations.

[carsavvycook]

Originally Posted by 302 Z28

I find that extremely hard to believe. Why in the world would a gasoline manufacture, or vendor trust that a trucker would be diligent enough to properly add additives.....makes no sense at all. Additives are added at the point of refining, just ask anyone that makes a living at a refinery.

Vince

I was just stating what I was told years ago, and I don't know if it is still the fact now. I do know that there are only 5 tanks at this yard, and they do not say Shell, Costco, Arco, Exxon, Chevron,...ect. They say Fuel, and Diesel.

[jaguarxk120]

This is on the same line as additives. Years ago we recieved a cleaning compound at the plant, in bulk by tank truck. Talking with the vendor rep. I found out the other co's. used the same cleaning compound. What was different was different co's. wanted different color compound, so when the driver came in to fill the tanker, the last thing that went in was a dye packet, by the time he delivered the load the dye was mixed and the compound was the right color. Same chemicals delivered.

[carsavvycook]

Originally Posted by jaguarxk120

This is on the same line as additives. Years ago we recieved a cleaning compound at the plant, in bulk by tank truck. Talking with the vendor rep. I found out the other co's. used the same cleaning compound. What was different was different co's. wanted different color compound, so when the driver came in to fill the tanker, the last thing that went in was a dye packet, by the time he delivered the load the dye was mixed and the compound was the right color. Same chemicals delivered.

Thank you for this clarification. I was a ride along with him, and he did pour something into the tank, and we went to 4 Mobil Stations.

[klutchmaster427]

I've gassed up at costco several times and haven't noticed any negative results. just lower prices!

[jimfulco]

We don't have Costco in this neck of the woods, but we have Wal-Mart/Sam's/Murphy gas, which makes my '79 Suburban miss and sputter, and drops the gas mileage on my mom's 2000 Grand Marquis from 22 to 19.5, although it runs smoothly on it. I wouldn't use it to start a fire.