New Rx8 owner question about gas
02-19-2007 | 12:57 AM
#27
Originally Posted by alcimedes
In my experience if you reset the ECU when filling up on a new octane of gas, then give it a full tank to learn, then one more tank to actually drive with you'll get a better idea of what your car likes or does like.
Granted it takes a while to go through three different octane levels at two tanks each this way, but it was worth it in my opinion.
I found that my car ran better on lower octane fuel than on high octane fuel, and got a few mpg higher as well. Your results may vary.
I should also mention that this is only from good gas stations, none of this "Bob's gas shack" crap.
Granted it takes a while to go through three different octane levels at two tanks each this way, but it was worth it in my opinion.
I found that my car ran better on lower octane fuel than on high octane fuel, and got a few mpg higher as well. Your results may vary.
I should also mention that this is only from good gas stations, none of this "Bob's gas shack" crap.
beers
02-19-2007 | 12:58 AM
#28
Originally Posted by tksnobords
the compression is 10.1 i only use the highest octane i can get from pump gas stations. but i am tryin to find out anyone information about running higher octane than 93. i have just made a post about the octane levels
beers
02-19-2007 | 01:12 AM
#30
Banned
Joined: May 2006
Posts: 734
Likes: 0
From: In the hills between San Miguel and Parkfield - "up in the boonie lands", Central Coast of California, Wine Country
Our blue likes premium - perfers Chevron, Exxon and shell, will accept mobil and 76 if followed by a tank of Chevron - She has expensive tastes but she is getting good milage if I don't play match my moves with a Mustang or Honda -
02-20-2007 | 04:31 PM
#32
2005 Black RX-8 GT 6M
Joined: Jul 2006
Posts: 6,350
Likes: 0
From: San Jose Area
I use 91 here in California (max octane readily available). The lowest I would ever think of putting in is 89, but the difference is usually only 10 cents a gallon. It really isn't worth it IMHO.
I am not as picky in terms of gas though as long as it is a major vendor. I usually put ARCO in because it is owned by BP and in California gas is pretty regulated.
I am not as picky in terms of gas though as long as it is a major vendor. I usually put ARCO in because it is owned by BP and in California gas is pretty regulated.
02-20-2007 | 05:38 PM
#34
Got Another Rotary
Joined: Aug 2006
Posts: 608
Likes: 2
From: Fredericksburg, VA
Different people have had different experiences with various octanes - test to see what seems to work for you.
I personally always use 93 (US rating)
One thing to remember though - if you do decide to "premix" with 2-cycle, this WILL lower you octane (see link), so I would run at least mid-grade if you do premix.
http://www.rotaxservice.com/rotax_tips/rotax_feed2.htm
I personally always use 93 (US rating)
One thing to remember though - if you do decide to "premix" with 2-cycle, this WILL lower you octane (see link), so I would run at least mid-grade if you do premix.
http://www.rotaxservice.com/rotax_tips/rotax_feed2.htm
02-20-2007 | 06:24 PM
#35
Power!!
Joined: Feb 2004
Posts: 4,412
Likes: 3
From: Sunny See attle
Originally Posted by Behn
I prefer 93 because it makes me feel cooler than buying 87. 
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