Forum Discussion
4,897 Replies
- RambleOnNWExplorer IITook a look at the Costco web site to see if they had any info:
Detergent additives
Since 1995, Federal regulations mandate that all gasoline contain an EPA-approved detergent additive. These additives are designed to minimize engine deposits that can affect vehicle performance and emissions. The various proprietary detergent additive formulations are the main difference between brands of gasoline. All Costco gasoline, both regular and premium unleaded, contains detergent additives.
I read this as they have the EPA minimums. If I have some time I'll look around and see if any testing labs have actually tested gasoline.
Link - tomman58ExplorerWent to seek out the Costco supplier but to no avail. The best I did was the Corvette web site and its participants they all said for their investigations that Costco uses only the top suppliers and they vary as to who has the best price that day.
Other than that they also said that the EPA madates the additives and that in itself provides for quality fuel in todays markets.
I guess the bottom line to me is, if it's good enough for a Corvette then it's good enough for me! - SRTExplorer
The Weekenders wrote:
SRT wrote:
Several stations are now at $3.37. So prices are continuing drifting down. Diesel prices are at $4.13 to $4.29. Hoping to see prices below $3.00 soon.
Yep, $3.40 something in Fargo/Moorhead and $3.59 in Harvey for gas. Diesel fuel at Sams Club in Bismarck at $3.89, $4.19 in Harvey.
One station this morning was at $3.33 for gasoline. The highest is $3.39. Diesel is still expensive - $4.17 to $4.23. Too bad the camping season is over. - koda55ExplorerJacksonville. Fl I paid 3.31 for regular gas.
- tomman58Explorer
vikrv wrote:
Filled up as promised at $3.75 for regular at a 76. The cheapest nearby was a Costco at $3.59 but I'm not a member and wouldn't buy there anyway since I stick to top tier gas with increased additives like 76, Chevron, Conoco, Exxon, Phillips 66, Texaco, etc.
Here is the list per the web site:
USA Canada
76 Stations Chevron Canada
Aloha Petroleum Esso
Chevron Petro-Canada
Conoco Shell Canada
CountryMark
Entec Stations
Exxon
Hawaii Fueling Network (HFN)
Holiday Stationstores, Inc.
Kwik Trip / Kwik Star
MFA Oil Co.
Mileage Stations
Mobil
Ohana Fuels
Phillips 66
Quik Trip
Rebel Oil
Road Ranger
Severson Oil
Shell
Texaco
Tri-Par Oil Co.
U.S. Oil
I am surprised not to see BP or Marathon on the list! I don't know who Costco uses but am going to look.
Costco doesn't sell diesel and of course with my current consumption of gas I'm looking at but a gallon a month or so. - RambleOnNWExplorer IIFilled up as promised at $3.75 for regular at a 76. The cheapest nearby was a Costco at $3.59 but I'm not a member and wouldn't buy there anyway since I stick to top tier gas with increased additives like 76, Chevron, Conoco, Exxon, Phillips 66, Texaco, etc.
- tomman58ExplorerWe talk about fuel prices but we don't care really because each state has its own taxes and surcharges so the only ones showing any real difference are those at refineries on the coast. We've found fuel cheapest in LA and miss. Texas is higher even thought they have the gulf there. Fl prices are always higher but then they don't allow oil rigs or refineries as far as I can tell.
I care more about stretching my fuel dollar then the few cents that divides us. I hope to hear of diesel trucks that do better soon. - tomman58ExplorerWe all know the Great Lakes are big. If they weren't, they'd have to do something about that name. But do you know just how big—and just how important—those lakes are?
For instance, ponder this: how much of the world's fresh water do the Great Lakes contain? I'll give you a hint: they shore up around 90% of the fresh water supply in the US alone. That's a pretty considerable amount. It's enough to entice 7% of all American agriculture to the area surrounding its basin.
So, got any guesses as to how much of the entire world's fresh water supply the Great Lakes account for? How about 20%. That's right—those five enormous lakes along the Canadian-American border hold a full one fifth of the world's fresh water.
Okay, so that's impressive, sure. But why is that worth noting? Because even fresh water in lakes of such size is threatened by pollution and contamination. Which unfortunately is a major problem for the iconic lakes. And 30 million people live in the Great Lake basin—so if that water is affected, so are all of them. And that huge chunk of American agriculture is vulnerable too—but it's also part of the problem.
I rest my case !!! - RambleOnNWExplorer II
LindsayRichards wrote:
Detroit has lost 65 % of it's population in the last half century and is extremely poor. There is not one incident of fracking causing aquifers to be polluted and only a few incidences of surface water being polluted by rouge operators who have been or will be punished, This takes place by a mile and a half under ground and the water is now recycled. There have been over 1.3 MILLION wells fracked in the US and many more overseas. This is a Hollywood deal and nothing else. Historic temperatures can be accurately measured by looking at ice core temperatures. The 1930's was in fact the hottest all over the earth. The thermal records as taken by actual weather stations has been corrupted by the warmest idealogs. As far as the Great Lakes having 20% of the world's fresh water. What a whopper. Antarctica has about 90%
Gas prices have continued to fall at a rapid clip, and where the last fill up was $3.85, the next fill up will be $3.75 for regular. - The_WeekendersExplorer
SRT wrote:
Several stations are now at $3.37. So prices are continuing drifting down. Diesel prices are at $4.13 to $4.29. Hoping to see prices below $3.00 soon.
Yep, $3.40 something in Fargo/Moorhead and $3.59 in Harvey for gas. Diesel fuel at Sams Club in Bismarck at $3.89, $4.19 in Harvey.
About RV Tips & Tricks
Looking for advice before your next adventure? Look no further.25,200 PostsLatest Activity: Jun 29, 2026