Everyone knows that 91 octane is recommended for their 'lude, the key is to fill your car up with Ethonal Free 91 (mainly midwest drivers). I kept track of how far I could go on one tank of gas with 91 oct w/ 10% Ethonal added, then I did the same trip with 91 oct ethonal free. Turns out that I got about 2-5 mpg more with non-Ethonal fuel VS. 10% added to 91 octane. Your prelude (or another 91 octane recommended car) will get better mileage and performe much better. If you don't believe me, then try it for yourself. Personally want my car to run at its best all times.

What do you all think? Agree?

 

only petrol i use is V-power at shells. i tried dropping down to 89 at one time when petrol was taxed at $4.30(V-power) the lude didn't like it at all.

 

I also generally use V-Power at Shell, but I'm pretty sure 93 octane is recommended, not 91. Correct me if I'm wrong.

 

Ever since i got my prelude...I always put 93octane in my fuel tank, whether i had the f22a1 i used 93, and the 3yrs that ive had the jdm h22a, nothing but 93octane

 

you are wrong...
91 octane is recommended because not all places sell 93.

 

"Premium" is recommended. 91...93 whatever

 

that settles it. 93 premium.

 

10%? damn, over here in wa they use upwards of 10-15% or more, and i believe, by law they aren't required to tell you how much ethanol they use or even if it even contains any! i use chevron, which i think is 15% at the moment. i get a lame 23mpg 50/50 city/fwy

 

I get about the same mpg with ethonal blend. But from now on I'm not going to put ethonal in it. Regular 91 octane or + is better. Yes, gas stations are not required to display if they are using ethonal.

 

Shell Vpower. Cali only gets 91....

 

so how do you plan on doing that when you don't know if a company is blending ethanol into their gas? i'm a diehard chevron fan. i once walked to a chevron gas station to get gas when an arco was just down the street. but i wouldn't mind better mpg. it's funny because i've tried driving like a granny in hopes of achieving a better average but i got about the same as when i do my normal + few spirited runs.

 

Excuse me for breing wrong. Around here, 91 octane is 'Plus' and 93 octane is 'Premium'. No matter if they have 93 or not.

 

don't worry around here its 87, 89, and 93. So pretty much makes you buy 93.

 

93 oct. Shell V-power or Texaco 93 oct. with techron or something like that. anything else and it runs like crap even if its 93

 

I've got the hook-ups inside. lol, my mother does the fuel/petron/gas ordering for ALL the Hy-Vee (grocery store in the Midwest) gas stations and she knows who is surving Ethonal and who isn't.

 

can she hook it up here? lol i really could use some better mileage. btw it's ethanol not ethonal. sorry my ocd screams everytime you misspell it.

 

Nah, sorry I dont think I can help you out.

Woops, I'm sorry...thats my Dyslexia kicking in on the spelling, lol.