View Poll Results: what octane do you use?
87
16
23.19%
89
16
23.19%
91,93+
37
53.62%
Voters: 69. You may not vote on this poll
octane usage
#1
Registered User
Thread Starter
Join Date: Feb 2006
Location: navarre, florida
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
octane usage
after reading about 7 pages of the cumulative gas thread, i got tired and wanted to see a poll on how many people use what gas. i've been using 93 octane but if more than 60% of you use 87 with no problems i'll try it out for myself. thanks for voting.
#4
Registered User
Originally Posted by Howdy1606
the car is tuned for 91
#5
Registered
Join Date: Feb 2006
Location: Conroe, Texas
Posts: 397
Likes: 0
Received 0 Likes
on
0 Posts
I use 87 octane with the recent hikes in gas prices. Everything seems OK however, I noticed a heavy, black sooty build-up on the inside of my exhaust tips. Seems to be heavier when I use 87 as opposed to 91.
#7
Unless car pings on 87 octane, use that one for more power and better efficiency. If it pings, use 89.
More important is to use a good brand. My car sees Shell 90% of the time. The rest, is BP/Amoco. Not all same octane gasolines are the same - the (R+M)/2 method used for rating it is not really descriptive of real performance (i.e., many combinations of two numbers of R and M will give you the same average).
More important is to use a good brand. My car sees Shell 90% of the time. The rest, is BP/Amoco. Not all same octane gasolines are the same - the (R+M)/2 method used for rating it is not really descriptive of real performance (i.e., many combinations of two numbers of R and M will give you the same average).
#8
Registered User
Join Date: Apr 2006
Location: Colorado Springs
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Just bought my '05 RX-8 with 180 miles on it a week ago. I live in Colorado, and was told by the dealer, that due to the altitude, I can run 87 octane with no problems. At lower altitudes, should I travel, I should increase the octane rating, to say 89 or 91, of the gas I buy.
At this time I am haveing no issues with milage or performance.
At this time I am haveing no issues with milage or performance.
#9
'05 Titanium 6sp
Join Date: Feb 2006
Location: St. Paul, MN
Posts: 368
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Darksyde
Just bought my '05 RX-8 with 180 miles on it a week ago. I live in Colorado, and was told by the dealer, that due to the altitude, I can run 87 octane with no problems. At lower altitudes, should I travel, I should increase the octane rating, to say 89 or 91, of the gas I buy.
At this time I am haveing no issues with milage or performance.
At this time I am haveing no issues with milage or performance.
Only 93 for me.
#10
Originally Posted by Brice-RX8
Maybe so, but from what I have read from the more rotary knowledgeable members of this forum only boosted rotary motors need premium fuel.
#11
Registered
iTrader: (3)
Join Date: May 2005
Location: Seattle, WA
Posts: 391
Likes: 0
Received 0 Likes
on
0 Posts
Absolute pressures in the combustion chamber are lower as altitude goes up. Thus you don't need high octane at higher altitudes.
I run 89 here in Seattle, but sometimes I do notice more hesitation on a hard 1-2 shift than I did with 91. All other driving is the same so I don't worry about it.
I run 89 here in Seattle, but sometimes I do notice more hesitation on a hard 1-2 shift than I did with 91. All other driving is the same so I don't worry about it.
Thread
Thread Starter
Forum
Replies
Last Post