What type of gas do you use for you FD, and Why?
#26
Rotary Freak
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Some poeple don't bother reading. They are known as newbies.
1 oz premix/gallon is a high ratio that isn't needed except for racing. Pettit recommends 4 oz/tank. I usually put in about 6oz/tank.
1 oz premix/gallon is a high ratio that isn't needed except for racing. Pettit recommends 4 oz/tank. I usually put in about 6oz/tank.
#27
I R SAD PANDA W/O BAW
Wsup all. Just a simple question about something I heard and wanted some clarification. Is using the best gas (race fuel) all the time cause any retardation in the engine timing? Thanks for clearing this up in advance, just wanted to separate fact from fiction.
#28
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Originally posted by ilike2eatricers
Wsup all. Just a simple question about something I heard and wanted some clarification. Is using the best gas (race fuel) all the time cause any retardation in the engine timing? Thanks for clearing this up in advance, just wanted to separate fact from fiction.
Wsup all. Just a simple question about something I heard and wanted some clarification. Is using the best gas (race fuel) all the time cause any retardation in the engine timing? Thanks for clearing this up in advance, just wanted to separate fact from fiction.
On some newer (OBD-II) cars I have heard reports that the ECU will "learn" based on the feedback of the knock/O2 sensors and retard timing if you put in low octane fuel, but in this case, it would be a timing advance, not a timing retard if you go to the "best gas".
edit: clarified how sh*tty the stock ECU is while dealing with knock.
Last edited by jumprdude; 03-17-03 at 01:19 AM.
#36
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Originally posted by ilike2eatricers
Does anybody know of any gas station in the bay area that offers higher than 91 octane? thanks
Does anybody know of any gas station in the bay area that offers higher than 91 octane? thanks
#38
I R SAD PANDA W/O BAW
thanks jumprdude. what do you think of the heightened performance if any compared to 91 octane. What do you think of the cost/benefit value for 100 octane. Thanks again.
#39
crazy canuck
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94 here in canada (cheveron or Petro Canada) with 4 OZ of 2 stroke oil every second fillup.
I have 20 gallon drum of 116 race fuel. I throw a few gallons in when I go autoxing or trackdays.
Never use shell.
I have 20 gallon drum of 116 race fuel. I throw a few gallons in when I go autoxing or trackdays.
Never use shell.
#40
Using 94 cheveron., but now an extra 3cents got added on to our gas tax and with the current situation in the gulf the gas is freakin unreal.. so I've been pumpin 92 for the last bit
#42
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Originally posted by ilike2eatricers
thanks jumprdude. what do you think of the heightened performance if any compared to 91 octane. What do you think of the cost/benefit value for 100 octane. Thanks again.
thanks jumprdude. what do you think of the heightened performance if any compared to 91 octane. What do you think of the cost/benefit value for 100 octane. Thanks again.
I would not recommend running 100 octane on the street unless you are worried about your car being out-of-tune enough to need the extra safety margin. Also it is not ultimately useful unless you have an ECU that allows you to swap maps quickly so you can alternate between running maps that are safe with pump gas, and maps that have been optimized for race gas. Or you could run race gas all the time but that gets expensive very quickly.
#43
2 babies - no back seats
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Buy 93 octane on whatever day it is on sale here at Texaco, Shell, or Exxon. Usually Tues, Wed, or Thurs it is 7-9c/gal off. Then get a Shell or Chase Freedom credit card which gives you 3-5% off of your gas purchases...
#44
Slave2TheFD
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The 100 octane number you see for Japan and other countries is not measured the same way we measure it. They use RON which is the lab measure, we use RON+Measured at the pump/2 to get an average of lab and real world octane.
#45
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Originally posted by BLKTOPTRVL
Any brand (except Texaco) over 91 O. I'm very surprised to learn that some folks use mid-grade 89.
Any brand (except Texaco) over 91 O. I'm very surprised to learn that some folks use mid-grade 89.
Manual states 91 for a stock car, if your running a modified car, get the highest octane possible. Specific brand is probably less important, but stay with the majors.
Mark