YAY! 91octane....?

[MikeW]

Now that gas prices are on the fall, im beginning to wonder if i should or could start putting Premium into my car.

I know the f22(a6) doesnt need it and runs fine on 87, but i work with a guy who's been putting Premium in both his Hondas(91 CB7 and 89 civic) since day one, even with the high prices, and he says that the few times he's put in 87oct, he saw a drop in MPG and performance.



Just curious as to what everyone's thoughts are on this and if anyone else has considered doing the same.

[91accord4door]

gas prices go down, now you want to pay more? stick with 87.

[C91BLX7]

No, just delete this now.

[honda_kid]

gas prices go down, now you want to pay more? stick with 87.

my thoughts exactly

[MikeW]

Drew, and a new guy...anyone serious?

I didnt wanna pay over $4/gal. Ive been fairly broke until recently and at just about $2/gal, id more than willing to pay the little bit extra for Premium.

[C91BLX7]

Drew, and a new guy...anyone serious?

I didnt wanna pay over $4/gal. Ive been fairly broke until recently and at just about $2/gal, id more than willing to pay the little bit extra for Premium.

Get a H22 then. Other wise you might aswell send me 3 bucks every time you fill up.

[cali-racer]

who cares. just do it.

[Jonas]

'premium' doesnt mean better. it means a higher octane rating. it burns differently. more smoothly and efficiently. its needed for boost or high compression. it wont do anything to help your car. maybe slight better mpg but the price difference wont be saving you any money

[91accord4door]

the number rating is the octane rating. most cars use 87 octane. the main difference is that 93 octane burns hotter. higher end cars and performance cars often need/require this higher level. the octane number is based on a 100 point scale, where 93 would be kind of like 93% octane base.

you should not use 93 (premium) grade unless your car manufacturer calls for it because it could eventually damage your engine by producing excess heat.i drive a gsr, and it calls for 93 octane or higher becuase my engine is high compression......8,200 redline.

[C91BLX7]

Wrong.

[nope]

he's not wrong. my first car was a 91 talon n/a. i used to fill it up with 94 octane and sometimes even used some octane boost additive. i ended up with melted injector tips. higher octanes burn too fast for a car that doesn't have the timing to compensate.

[turboAccordHSF]

i don't know about smart mouth, but i use V-Power shell Octane....the only difference is under acceleration it burns more efficient...so it last longer, i just get 35mpg in city + highway, 87 or 89 kills gas like i kill tacos when i'm racing......or speeding....but i heard 91 V-power from Shell cleans my air valves and longer lasting fuel filter......

[C91BLX7]

he's not wrong. my first car was a 91 talon n/a. i used to fill it up with 94 octane and sometimes even used some octane boost additive. i ended up with melted injector tips. higher octanes burn too fast for a car that doesn't have the timing to compensate.

Its the total opposite.

[djcaz_aom]

This is a good source:

http://en.wikipedia.org/wiki/Octane_rating

[deevergote]

Higher octane burns slower and more smoothly, preventing detonation in high compression and boosted engines. It can potentially damage injectors. Due to the more efficient burn, it CAN increase fuel economy... but with the price difference being about 40 cents or more... there is no savings.

Might as well wash your car with Evian as well.