What kind of gas to you use?
11-07-02, 07:28 AM
#1
Full Member
Thread Starter
Join Date: Nov 2002
Location: Columbia, SC
Posts: 128
Likes: 0
Received 0 Likes
on
0 Posts
What kind of gas to you use?
Hey Guys,
Im new here and dont really know too much. Ive got a '91 conv. (dont know the s4, s5, but if someone would post them, i can learn :-) ). I just want to know what kind of gas is good for the car? 87, 89, etc. Also, any particular brand you find to be better on the engine?
Thanks!
Im new here and dont really know too much. Ive got a '91 conv. (dont know the s4, s5, but if someone would post them, i can learn :-) ). I just want to know what kind of gas is good for the car? 87, 89, etc. Also, any particular brand you find to be better on the engine?
Thanks!
11-07-02, 07:38 AM
#3
boost on the way(GTU II)
well i usually choose amoco,shell,mobil. 87
unless i feel like giveing her a treat and give her 93. but if u have the money **** feed her some 93
and u have a s5
unless i feel like giveing her a treat and give her 93. but if u have the money **** feed her some 93
and u have a s5
11-07-02, 08:22 AM
#4
87 octane is all you need. octane is just the gas rating against detonation. if you are detonating an na rotary then you have problems, bad. if you want to keep your fuel system clean and want quality then buy chevron or some other equivalent quality gas. typically with a higher octane, slower burning fuel, you will lose power as the mixture can still be burning long after the combustion stage. however it will help clean out your exhaust, lol.
11-07-02, 08:23 AM
#5
SCCA Rookie
Join Date: May 2001
Location: Sterling Heights, MI
Posts: 1,936
Likes: 0
Received 0 Likes
on
0 Posts
if you've got an N/A rotary, like ALL the race car drivers use the lowest octane they can find. Faster combustion and/or flame propagation I guess, I forget the reason.
If you've got a Turbo rotary, use the highest you can find to avoid detonation.
If you've got a Turbo rotary, use the highest you can find to avoid detonation.
Trending Topics
11-07-02, 09:57 AM
#11
pei > caek
Join Date: May 2002
Location: Mars
Posts: 4,643
Likes: 0
Received 0 Likes
on
0 Posts
For your NA motor use the lowest octane possible (probably 87..). If you start spraying on it, or go with a supercharger/turbo then you will want to go with a higher octane rating.
11-07-02, 12:21 PM
#14
Full Member
Join Date: Oct 2002
Location: Michigan
Posts: 58
Likes: 0
Received 0 Likes
on
0 Posts
I normally put in 93 octane cause some guy around me charges like a 1.50$ a gallon for premium, so I figured fug it. But I guess ill use 87 octane from now on if it doesn't really matter. And with the turbo, Id use 93 octane.
11-07-02, 06:10 PM
#19
Senior Member
Join Date: Mar 2002
Location: Treasure Island, FL
Posts: 342
Likes: 0
Received 0 Likes
on
0 Posts
