What fuel? 87 or 91

87 in mine no probs

 

how about run 91 and add some octane booster!! jk i run 88 here and works for me as the manual says minimum of 87

 

I just switched to running 91/93 when Ike hit. Gas prices were going down so I thought I might as well give it a try.

Now I'm back to running 87, or when my current tank runs out.

Haven't noticed anything too different yet, except for smoother idling.

 

dont get offended here.....but didnt u just say u noticed it idles smoother with the premium? but yet your going back to 87 octane? maybe the smoother idling is a hint...

 

I wish I could, but right now premium is right at $4/gal here in south texas.

I had less fear of buying premium when gas was on its way down and premium was only $3.60 or so.

 

Pardon me. Tacomas don't need premium. The engine runs fine on 87. I have only run 87 octane in my 05. I have never run any higher grade. 96,000 miles on it & not a single problem.

 

yeah i know regular runs fine. hell my reg cab runs great on regular. its all i run. i just know some guys on here wouldnt run anything elese in their taco except premium. but with the price i couldnt afford it anyway

 

I have ran 89 octane in my new Tacoma since I bought it in June. I tried some 87 last week and noticed hesitation during acceleration. I went back to 89 last fill up and my overall engine performance seemed so much better. I'm going to stick with 89 octane.

 

:/

Being in Colorado we only get 85/87/91 octane gas, and 85 octane gas is more expensive than what most people here are paying for 87! 85 is around $3.88/gal now, 87 is around $4.08/gal, and I think 91 is $4.28. I've always understood that the 85 octane was better for vehicles with carburetors at altitude, but with most modern vehicles using fuel injection, it seems pointless.

Actually, it looks like I was wrong, per wikipedia:

So, I guess I should be ok running 85 octane?

 

way to go chris. thanks for backing me up

 

I know my manual says something like "premium for maximum performance", but I've heard the newer manuals say something different. Anyone with an 07+ care to confirm that?

 

Last tank, Premium gas: 21MPG
Tank prior to that, mid grade: 19MPG

Never ran reg, so I don't have a number. Keep in mind, I live in Flat Florida and am usually (I'm not perfect dammit) fairly light on the pedal.

 

ok, so it hasn't changed then.... At least not for 05-07.

 

Has anyone tested to see if the MPG is better with straight gas vs gas with 10% ethanol? It is getting hard to find a station around here that does not contain some ethanol. I have never run a full tank on straight gas...

 

Thanks for that Cometcat-but I owe this knowledge to Chris4x4 I have learned a LOT from this guy here-includng this octane theory!

 

Switched from 91 to 87 about 6 months ago and have not seen a difference at all. Driving style is mostly city driving, 75% of the time and highway 25% of the time. We will see what happens in the winter when I start the drive up to the mountains and see if there is a significant drop from when I was running 91.

So now that Ike is over and price of a barrel of oil has gone below $100, why hasn't the price of gas gone below $3.00/gallon?

Phuqing oil companies!!

 

^Has nothing to do with the oil companies. The refineries are not back to operating at the same capacity as before Ike. Just because the storm is over doesn't mean they can immediately start operating. How many people are still out of their homes in TX and it's been a week? Stop blaming the "big bad oil companies" for things they have no control over.