Best gas solved

put that is your tank instead of diesel....hahahahah

 

Basically, not alot to pick from in Rural areas.

 

tail winds

 

you must have been completely empty to feel the difference pulling out of the station......how long is four fuel line from the pump and injectors......hehehe....got to be fuel there before the new fuel get to the engine

 

thats why Ford has the flex fuel engines

 

Working for a Company that supplies Costco with an Product I will say that Costco has a very high Quality expectancy of Suppliers and Does Test, Rate and grade the products from manufactures so it would not surprise me at all that the same rules apply to the fuel and that the fuel comes from Shell or Chevron, I been running Costco Gas most of the time in my Tacoma and I do see very good Mpg it did get poor Mpg when I ran gas from a Mini Mart for a full tank.

 

I fail to see (maybe it's my ignorance) how that applies. Flex fuel applies to E85 which does not have the same fuel efficiency as 5,10,15 percent ethanol based gasoline. High compression turbo engines use E85 only because it has higher octane ratings. Ethanol based fuel has no benefits other than that. Despite whatever argument is posed. Government subsidies and lobbiists are the only reason we have E85.

 

isn't that what ford does? their system can determine what fuel is used and then trims the engine to that fuel....nence flex fuel.....did i miss something or am i mis-informed

 

That was the unfortunate part. I only got three fresh gallons out of 5.5gal. But, it was plenty. Also, with a return line, it mixes quick.

Edit: my friend filled his whole tank and said the same including easier start up. We both saw an MPG bump on that tank.

Someday the Taco will get its turn.

 

https://www.predatorpeestore.com/bear-urine.html
Bear piss is way more expensive than Shell gas. WAY more.
so it must be better

 

Neither is Wawa, which is very disappointing.

 

Where I live, I see the same damn trucks deliver gas to different stations. In Western Wa North of Seattle, it is Kenan Advantage Group.

We are all getting the same gas just different seasoning...

Perhaps I'm am idiot and the KAG is like UPS (it is), but do you think they only run one truck for Safeway, one for Fred Meyer, one for Costco. Sure I've seen an ARCO tanker, Shell, ETC...

 

Right, turbos by definition have higher compression in the engine. Which means higher heat, which means a higher octane (higher Flashpoint) is needed/recommended.

It's basically too complicated to give general rules. Each engine has a different efficiency curve, and your choice of fuel determines where you can operate on that curve.

My old Jetta TDI for instance had a higher efficiency under load (from that curve), so if I floored it from 55-65mph at a certain rpm range, and let it coast back down to 55 over and over, I would get consistantly higher mpg than driving 60mph with cruise control. Having a manual transmission (and the fact that no fuel was used during coasting) enabled that hypermiling trick.

The fuel variables are octane, ethanol content (related to energy content) , and detergents.
Octane is the easiest to see, you press the button each time. Go to a top tier approved brand of gas station and that's the best you can do for detergents. Find a sticker somewhere that discloses the ethanol constant and your set there as well.
Good luck finding the right set of conditions, and patience for a real test. By my count, there's 20+ tests you have to do to decide what's right (for your engine, not anyone else's model of engine). Add in ambient temperature (now it's 60), season (winter blend? Now it's 120), and altitude and suddenly your looking at 200-300 tanks of fuel. Roughly 300 miles each, oh. Congratulations, 90,000 miles in, you have an idea what type of fuel is best for you. Hopefully the engine doesn't change too much after being broken in for 90k miles, should probably redo the entire test to verify...


Or, keep it simple: detergents are good, ethanol is bad, and octane depends (but is not directly related to the other two).

 

Ha! First world problems!

 

I wish Costco was 75 cents cheaper a gallon. Here it is about 10 to 15 cents cheaper, sometimes not even that much.

 

A buddy of mine works for the shell refinery in Louisiana in the chemistry department. He told me that their raw gasoline gets pumped to large storage thanks, then the fuel is purchased by different companies and they put their own shit in it. Even big companies buy it. So your chevron gas may be refined at a shell plant.

 

Correct. It is "splash blended" at the truck rack where the tankers are loaded.

In reply to the other post about the same truck delivering to different stations, independents contract to deliver to different stations all the time, but that specific blend goes to the stations paying the upcharge for the specific blend.

 

Well “some of us” are getting side tracked. It’s not about how well our truck runs on “cheaper” gas or HP per day it’s about distant for your dollar. I just got my Costco membership today. $2.79 vs $3.65 chevron by my house. So $36.12 a week saving. I fill up twice a week. 4 weeks and my executive gold membership is paid for. An average of 0.86 cheaper that’s $939.12 a year saving at 2 fill ups per week x52 weeks.

Costco is great gas as chevron,shell except it’s significantly cheaper.

Now.. like I stated in the entry of this thread. Arco might be the same price but the miles per tank is less so I’m not even trying to do the math but shopping at arco vs chevron I’m sure the saving on price per gallon per tank vs miles per tank I’m not winning by using arco and Valero. I can’t speak on every gas but in my opinion a Costco membership is free within a month with the savings

 

That is really what it comes down to. Alot of fuel stations have rewards. That is what you are willing to spend at the store and/or for memberships. You will get some winter blends that will affect fuel mileage, but station to station in the same location, fuel difference is negligible. Run your costco fuel, your wawa, what ever floats your boat.

 

It the amount I AM saving, not you or the rest of the world. I’m spending about $.80 a gallon cheaper so the savings pays for my membership in about a month. Not every is rich and doesn’t have the luxury of just gasing up Mr Wawa whatever the hell that is. Some of us have to real crunch numbers of price and gallons per tank and do what works for us. Ya coke and Pepsi vs Mr Cola or PepSKI maybe be the same to you and different to others. MAYBE it’s different in Southern California/ San Bernardino ONLY but ARCO gas burns up considerably faster per tank here