Originally Posted By: crazyoildude
Which company makes the best gas and why? i like Shell And BP but what about the others??
First of all... BRAND name that is on fuel MAKES NO DIFFERENCE whatsoever. Only gullible or uneducated people believe otherwise. Sorry, not trying to be a dink about it, but that's just a fact.
Now, with that said, you should always buy the cheapest gasoline per gallon that you can. (Unless you are wealthy and then it really doesn't matter, right?!) Keep in mind however, that the fuel that you buy needs to meet the Minimum OCTANE Rating required for your vehicle's engine. Look in your vehicle's owner's manual and it WILL tell you in there. Most (not all, but most) gasoline engines require 87 octane or better.
HOWEVER, many of the higher sport-performance engines in stock form, as well as any modified engines pre-production will often require higher octane fuel, such as 89 or 91 or 93 octane. Then there are racing applications where octane in the hundreds is required... but I don't believe that really applies to this thread.
Anyhow, run the cheapest stuff that meets the requirements of your vehicle's engine and observe the results. If your engine runs fine without any pinging/knocking/detonation (typically heard under a load, such as heavy acceleration from a stop or when hauling/towing a heavy load), then you have nothing to worry about.
What you will achieve by purchasing the cheapest fuel that you can locally is simple. You will save a bunch of money over a year's time, and you can "bask in the glow" of still having a "pot to pizz in" at the end of the work week!
Cheeri-o!