What Type Of Gas In A C5
12-10-2007, 07:32 PM
#21
Le Mans Master
Shell 93 for me. Heck, I run premium in my Nissan Murano. Both cars COULD handle 87 octane, but YOU PAY FOR PERFORMANCE ! 
Personally, I can't see a "car person" putting regular in a C5 !
Personally, I can't see a "car person" putting regular in a C5 !
Premium all the time. 
12-11-2007, 12:07 AM
#25
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2020 Corvette of the Year Finalist (appearance mods)
C5 of Year Winner (appearance mods) 2019
St. Jude Donor '08-'09-'12-'13-'14-'15-'16-'17-'18-'19-'20-'21-'22
12-11-2007, 12:58 AM
#26
Burning Brakes
Look at this query this way:
What's the difference from 87 octane to 89 octane to 92 octane? 10 cents from one to the other. Now do the math: Gallons of gas purchased every month times either 10 or 20 cents. For me it's about 80 gallons. 80 gallons X 20 cents = $16. I think $16 a month is a small price to pay for my baby's healthy appetite. Don't you agree....?
What's the difference from 87 octane to 89 octane to 92 octane? 10 cents from one to the other. Now do the math: Gallons of gas purchased every month times either 10 or 20 cents. For me it's about 80 gallons. 80 gallons X 20 cents = $16. I think $16 a month is a small price to pay for my baby's healthy appetite. Don't you agree....?
12-11-2007, 07:47 PM
#27
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Look at this query this way:
What's the difference from 87 octane to 89 octane to 92 octane? 10 cents from one to the other. Now do the math: Gallons of gas purchased every month times either 10 or 20 cents. For me it's about 80 gallons. 80 gallons X 20 cents = $16. I think $16 a month is a small price to pay for my baby's healthy appetite. Don't you agree....?
What's the difference from 87 octane to 89 octane to 92 octane? 10 cents from one to the other. Now do the math: Gallons of gas purchased every month times either 10 or 20 cents. For me it's about 80 gallons. 80 gallons X 20 cents = $16. I think $16 a month is a small price to pay for my baby's healthy appetite. Don't you agree....?
Any type but low grade diesel...
12-11-2007, 08:36 PM
#31
Safety Car
I get the cheapest crap I can find. Screw the engine; let the sensors search around. I just love it when my injectors plug up. Why run 350 horses when I can get by with 200? 
12-11-2007, 09:26 PM
#32
Le Mans Master
I don't know if the Hypertech or other DIY tuners will let you detune it or not.
I got a Hypertech to detune my Escalade. It called for 93, and that's about .25/gal more than 87 around here, and not always easy to find. Filling almost a 30 gallon tank gets expensive. It took about 20hp away and was somewhat noticeable, but you get used to it.
I'm not sure that I'd want to detune my Vette, though.
I got a Hypertech to detune my Escalade. It called for 93, and that's about .25/gal more than 87 around here, and not always easy to find. Filling almost a 30 gallon tank gets expensive. It took about 20hp away and was somewhat noticeable, but you get used to it.
I'm not sure that I'd want to detune my Vette, though.
12-11-2007, 11:05 PM
#35
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yeah thats good advice--- I owned , lets see, this is my ,uh----11th vette----so yeah , thats just great advice----with all the modern day computers and fuel injection systems---I was wondering what alot of you people use----as stated way befor---I RUN PREMIUM IN EVERYTHING I OWN, CARS , CHOPPERS, MY R1, MY HYABUSA, MY JOHN DEAR TRACTOR----ETC---BUT MY STINGRAY I RUN PLUS
12-11-2007, 11:15 PM
#36
Melting Slicks
For the few dollars difference use the PREMIUM gas,, as many have already mentioned. It will keep the spark plugs cleaner as well as the injectors,,
12-12-2007, 12:50 AM
#37
Race Director
From my '04 owners manual:
Use premium unleaded gasoline with a posted octane of
91 or higher for best performance. You may also use
middle grade or regular unleaded gasoline rated at
87 octane or higher, but your vehicle’s acceleration may
be slightly reduced. If the octane is less than 87, you
may get a heavy knocking noise when you drive. If this
occurs, use a gasoline rated at 87 octane or higher
as soon as possible. Otherwise, you might damage
your engine.
Use premium unleaded gasoline with a posted octane of
91 or higher for best performance. You may also use
middle grade or regular unleaded gasoline rated at
87 octane or higher, but your vehicle’s acceleration may
be slightly reduced. If the octane is less than 87, you
may get a heavy knocking noise when you drive. If this
occurs, use a gasoline rated at 87 octane or higher
as soon as possible. Otherwise, you might damage
your engine.
12-12-2007, 12:55 AM
#38
Burning Brakes
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