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#1 |
Registered Member
Join Date: Mar 2001
Location: Atlanta, GA
Posts: 13
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![]() I always put Amoco clear 93 octane in my baby and once in a while I'll use Chevron.
Which do you find better for your car? What should we stay away from? ------------------ 1992 Z28 TPI. 160' stat, Accel 8mm, Accel Cap & Rotor, Flowmaster, high-flo cat. 700R4, 3.73s HD Zexel Torsen |
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#2 |
Registered Member
Join Date: Oct 1998
Location: Rogers, MN
Posts: 2,089
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![]() Sinclair nonoxygenated 93 octane usually.
I hope you have your timing advanced to justify using premium. If not, you're just wasting money and fouling your plugs. That 160* thermostat probably makes it worse forcing you to run rich all of the time. |
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#3 |
Registered Member
Join Date: Oct 1998
Location: Rogers, MN
Posts: 2,089
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![]() Does the Z28 have the ability to adjust timing according to what octane you're using? My friend's Corvette supposedly did that. I'm not sure if I believe it, though.
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#4 |
Guest
Posts: n/a
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![]() Sunoco 94 on the street.
(C16 at the race track) ------------------ 91 coupe 3.73's,long tubes,2 1/2" exh,ported stock t-body,ProM-77mm cobra intake,edelbrock heads,B303,1.72 rr's 36lb inj's,tremec, & a Paxton NOVI 2000!!! 11.020 @128.95 on BFG Drag Radials (275/60/15) |
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#5 |
Registered Member
Join Date: Mar 2001
Location: Southern Maryland
Posts: 471
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![]() 87 octane all the time. Runs fine...
------------------ '89 LX 5.0 - Original Owner '94 E-150 Conversion Van |
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#6 |
Drag Racer!
Join Date: Nov 1999
Location: Lake Worth, FL USA
Posts: 757
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![]() Mobil 93 Octane for mine.
Had problem before with Chevron so I stay away from them. ------------------ 00 GT, MAC Offroad H, Steeda Pulleys, Steeda Timing Adjuster, FMS 4.10’s, Flows w/turndowns, UPR shifter, UPR subframes, UPR adj LCA’s (not installed), Air Filter, Lakewood 70/30 & 50/50, Weld Pro Stars, Nitto DR’s, 253.8 RWHP/292.8RWTQ Best on DR's 13.09@103.92 (1.81 60ft) Best on ET Drags 12.91@101.93 (1.74 60ft) M/M 100 88 LX coupe X-FHP, 12pt Cage, UPR K-member, 31 spline rear, full spool (For Sale) |
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#7 |
Registered Member
Join Date: May 2000
Location: Kamloops, BC
Posts: 2,875
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![]() Before my Chip, Formula Shell 87 Octane
After Chip Formula Shell 91 Octane with STP Octane Boost (needs 92 Octane or better to run smooth and the best gas I could find in Edmonton was 91 Octane ![]() ------------------ Driving: 1998 F-150 Far way in Edmonton==> ![]() 1995 Mustang GT |
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#8 |
Stang Chic Extraordinaire
Join Date: Dec 2000
Location: Hayward, California, USA
Posts: 158
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![]() I use Chevron, 93 Octane sometimes 76.
------------------ Yours in SPEED======= Mandy aka GTGRL00 |
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#9 |
Registered Member
Join Date: Feb 2001
Location: Mooresville, NC
Posts: 105
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![]() I usually go for the cheapest
gas around since it cost so much. But for the last 2 weeks I have been using mid-grade b/c the citgo near lowes moter speedway has it for 1.32/gallon. where everywhere else it is 1.39 for regular. So why not go with the better. Plus since we advanced the timing she has been pinging a little. ------------------ Amy Cannon 94 Mustang Cobra: off-road h-pipe, 3:73 gears, motersports underdrive pulleys, MAC cold air induction, MAC 1 1/2 inch lowering springs, K&N Air filter, Maximum Motersports caster/camber plates. steeda tri-ax shifter, Motorsports King Cobra Clutch with Steeda Cable Linkage.(its a gripper!) 94 Thunderbird SC: only mod is a K&N air filter. But she runs very well and hard. |
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#10 |
The Dude
Join Date: Feb 2001
Location: Arlington, VA
Posts: 1,262
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![]() I have run 87 in my stock 90 forever, never had any problems. The sunoco near me has 87, 89, 91, and 93. Very nice once I start doing some work. For all you people who are putting premium in a stock motor w/o timing bumped up, its a waste. I one time saw some guy putting 91 in his, what looked to be stock, accord. And this guy didn't look like one to mess with his engine either. Some people.
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#11 |
Founder
Join Date: Jun 1995
Location: Michigan
Posts: 19,326
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![]() All last summer I didn't run anything but Sunoco 104 octane GT+ race fuel. However, I had my EEC calibrations so agreesive, even in street trim with 10 lbs of boost, that I had to. I'm redoing my street calibration this spring so I can safely run 92 to 94 octane. At the track, I run C16 race fuel and have a completely different EEC calibration. Oh yeah, and I change blower pullies and run 16 to 18 lbs of boost.
![]() ------------------ Dan McClain, Editor The Mustang Works Magazine 1991 Mustang GT - NOVI Supercharged 377 Stroker 1999 Ford Lightning SVT - 2000 Prototype updated by Roush |
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#12 |
midnightruns.com
Join Date: Dec 2000
Location: Ottawa, Ontario, Canada
Posts: 584
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![]() I run 87 Octane because I hear there is no benefit to having higher octane without aditional upgrades...
IS THAT TRUE... I pulled a 13.69 with 87 octane on a 2000GT (stock)... could my car run a 13.5 with higher octane? ------------------ Lizard King, Bone Stock; 13.69 at 101MPH • Extreme Burnout •2000GT VS LS1 • Quartermile run •2000GT vs LX Stang |
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#13 |
Guest
Posts: n/a
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![]() 100 octane in the summer (actually 2/3 100 1/3 93) and the opposite in the winter. Runs like a dream. I go to Citgo for the gas in my convertible. As for the 69 I run 120 octane I get when ever I go to the little airport near my town or race track. Because leaded is the best.
------------------ 90' 5.0 GT Convertible Mustang. 69' Mustang Mach 1 Fastback with a 351. Too much to list here so if you want to know ask me. AOL name: Woodnutz351 [This message has been edited by 1BadMoFo5.0 (edited 04-06-2001).] |
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#14 |
Guest
Posts: n/a
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![]() Only 92 octane and up for my cars. 91 octane is not available around here. Both my girls need the best.
P.S. Its nice to see Dan actually posting to a thread. P.S.S. Nice shirts! I got both of them a couple days ago. It said via UPS but it came us mail... hahahah, you tried huh? ------------------ Rick My 89lx(updated 2/21/2001) My 97 Cobra |
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#15 |
Conservative Individualist
Join Date: May 1997
Location: Wherever I need to be
Posts: 7,487
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![]() Nothing but Sunoco Ultra 94 octane since my '90 rolled off the lot (new) 11 years and 109,000 miles ago.
Never had a problem with fouled injectors, plugs or pinging (@ 16 degrees initial timing). Works for me. |
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#16 |
Registered Member
Join Date: Oct 1999
Location: Saltsburg, PA USA
Posts: 468
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![]() Sunoco 93 since I bumped the timing to 14*. The last tank for winter storage is 87 octane with fuel stablizer and a bottle of fuel injection cleaner.
------------------ Scott93GT 1993 Mustang GT Silver CC/Titanium Accent GT, Black Clothe interior. 5 speed, 3.08's, 3 chamber Flows, K&N, Hurst Competition Plus. 1991 F150 4x4 XLT Lariat Six Stick Regular Cab LWB Tow Vehicle |
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#17 |
IRAQ VET
Join Date: Feb 2000
Location: high desert California
Posts: 1,480
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![]() I wish i could find some 94 or something like that. In California all i could find it 92
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#18 |
The Instigator
Join Date: Jul 2000
Location: So Cal and Houston
Posts: 764
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![]() My baby drinks Isomil...oh...you mean my car??
![]() ![]() ------------------ 90 Honda CRX aka Project Mongoose 84 Toyota Supra aka Natural Born Killa |
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#19 |
Guest
Posts: n/a
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![]() I always used 93,but I notice some of you guys use 87,ouch! In the manual I believe it said not to use anything below 92 or 91, but I may try useing 87 or 91 and see how she runs, sure would save a lot of money if my baby like the lower grade formula
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#20 |
Registered Member
Join Date: Nov 2000
Location: Pawleys Island SC
Posts: 229
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![]() I run either 93 or 89 depending on what the temp is. If it's really hot, on 89 I'll detect a sligh pinging around 6500-6700. But mostly during the winter I run 89 unless I'm going to the track or something.
------------------ 2000 Mustang GT |
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