Costco Gas for a Ford V10 - any issue ?

[lincoln30]

Originally Posted by campclan

My Brother in law drove Gas Tankers for years believe or not all gas comes from the same place just the additives are different. Shell truck pulls right in after a Chevron Truck etc. Costco or Kroger gas comes from the same place just add techron or STP or something of the like if you want. If your engine is pinging then you need to add something as that pinging is very bad for an engine. I was a Mechanic for awhile and sometimes I saw things that were a result of bad gas or poor maintenance. Ethanol is tough on seals and using a stabilizer when parked is good advice.

I worked for a major oil company. The vast majority of tankers are filled from terminals connected to pipelines. All the refineries feed their gas into the pipelines. When a tanker fills up the additives for that brand is added. Now Amoco, now BP, refined its premium so it was cleaner than most other brands. That would be delivered from the refinery or a line not shared with other refineries.

I have been told Costco is serviced by BP.

[lincoln30]

Unless someone is cheating by topping off their tanks with a garden hose or has a bad leak the reason you will get water in your tank on fill-up is because a delivery was recently made. Water and gas does't mix. Water is heavier than gas and settles to the bottom. It is impossible to get all the moisture out and the water settles.

The pipe leading from the pump does not go all the to the bottom of the tanks. I don't recall how high from the bottom but it is enough to prevent water from being pumped.

When the tanker fills the tank the water is stirred up and will mix with the gas until everything settles back down.

Periodically the water is pumped out of the tanks to keep the water below the pipe.

If you see a tanker making a delivery, go on to the next station.