I used 93 octane from shell or if I can't make it a good name brand.


Just an FYI all your gas is about the same. The differences are in winter or summer blend and 93 octane or 87 octane. There are some new blends that are being made at a lower octane so that ethonal is added to bring it to the octane spec. Now your Racetracks, wally gas, or the cheap stop & rod they are way different than the name brand stations. These lower priced sations buy their gas with out any additives. So the savings you are getting is from not buying those additives. I have hear of a few people tryiny to save a few pennys and doing harm to their vehicles.

So just FYI buy good gas from a good retail place that way they keep the crud out out of their tanks so it dose not get in yours........

 

Wait, you don't know if Costco is anywhere else? In case you didnt know, Costco has locations in all the states except Arkansas, Louisiana, Maine, Mississippi, Nebraska, North Dakota, Rhode Island, South Dakota, West Virginia, Wisconsin and Wyoming. That's only a handful. I am sure MOST if not everyone on this site knows what Costco is. Unless we're dealing with a bunch of hicks.

Anyway, about the gas thing I usually go to Costco, Shell, or AM/PM. I use regular unleaded (87 octane) and notice no problems. Crappy mileage though. I may switch to 89 and see if there's a mileage difference. On yet another note, I have driven my truck 3900 miles in 6 months, so I don't fill up often. I should bury a 6000gal tank like our friend RoushMarkLT up in Alaska.

 

Most gas stations in any given area get their gas from the same refinery. There are a limited number of refineries and they produce gasoline for the areas around them. Gas is then sent to terminals where the trucks from the various companies come and fill up. It is at the terminals where the additivies are added.

So the gasoline that you get from the stations in your area probably came from the same gas terminal. It is literally the same gas. The only difference is the additives. That also accounts in the difference in price from the majors (Texaco, Chevron, Exxon, BP, Shell etc) and the discount stations (Valero, Circle K, Speedway, Grocery Stores, Wal-mart, etc).

Additives are there for a reason. You get what you pay for.

 

87 at albertsons, $1.83. Run's and performs great. As soon as i get the edge it'll be 93. Now that gas prices are reasonable down here

 

I have started similar threads in the past. I have always thought gas was gas and bought from the cheapest place around. Then when I bought this truck, I for some reason started documenting every fillup as well as how I drove, and where I drove. I noticed that when I bought Exxon over the local QwikStop or racetrack, it got a little better mileage. Then when I tried Shell, it was even better than the Exxon. So now, I buy only Shell, Exxon, Texaco, or Conoco. The nice thing, the Shell abd Exxon are to two cheapest places around here. But I have determined I get about 10% better out of the Shell over the non-branded. This comes from logging every fillup over 35,000 miles.

 

exxon or mobile 93

 

Are you tuned for 93 octane?