Fuel Octane...what are you using?

Ethanol does make a huge difference. I ran ethanol base for about 6 months (per manual in an F-150), fuel cost savings were wiped away by lost mileage. Not sure how this translate to my Tacoma except that I will not run high ethanol fuels not will I pay extra for over 87/89 octane (unless I have a tune for it).
If I have an OV tune for higher octane then I suspect it is a cost with value.

 

when I drove Hondas in the summer I would get pinging using 87 pre-detonation so I would switch to premium in warm weather to get rid of it. 87 burns at faster and higher octane burns slower. So far my 3.4 seems to work great with 87 in all weather I've been in thus far so i just run 87 in it. Also winter blend fuel is oxygenated to help with warming up/driving in colder conditions. Supposedly we get better mileage in the summer with all fuel but I hardly notice it.

 

I drive it like I stole it most of the time. I Have drop in K/N air filter, magnaflow exhaust, and 265/70/17 tires. I get like 10-13 mpg. Does this seem right?

 

Yes that seems perfect for your driving style.

 

OK good to know, Just like throwing out the back end sometimess.... (every other corner) .

 

man you serious or joking?

 

So you run what is essentially kerosene in your Tacoma. Huh, I didn't know Tacomas had multifuel engines in them.

 

NO JOKE. I usually get about 13-15 mpg but this winter I was getting 10-13.

 

Feels different. RIIIGGHHTT

 

Hold on there Mike. My truck always feels like it runs smoother after I wash it.

 

I guess life is about experiences and building your own personal testimony rather than regurgitating this crap or that crap you saw on a post in a forum....that being said....my truck ran and idled better on the higher octane gas....however, at 45 cents more per gallon i'm not going to be buying it regularly.

 

Shell or Chevron 93/91 only for my last 3 Tacomas. All run great, no problems.

 

That's how things like anti-vax, flat earth, etc come about. I choose science.

 

87 Octane here....Averaging 18-19mpgs.

 

I exclusiely used 87 because thats what it calls for.

That is until I accidentally selected 93 one day and within half to 3/4 of the tank used, all the little stutters and misses down low were mostly gone.

I have a feeling the v6 is pulling timing alot in stock tune due to detonation. Just a thought.

 

Costco 87 octane. About 19 mpg through this winter.

 

Nope. Butane and a few others that change the stoichiometric ratio a bit to account for average temp differences.
Theoretically you should get better mpg on winter gas but nobody does in actual practice. I can explain that but nobody would care.

 

I run ethanol free 94 octane in my 16 Tacoma. Runs and idles fantastic. No hesitation or bogs, idles quite, great mileage.

 

I get this using Shell, Chevron, or Mobil 87 octane

 

Most options for me are 87 - 89 - 93 - Diesel. I go 93, duh.