Regular Gas ?

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Regular Gas ?

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Corvette Forums >> Corvette Models >> Corvette C5 Forum >> Regular Gas ?

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Regular Gas ? - 11/19/2008 4:01:14 PM

Posts: 24
Joined: 10/13/2007
Status: offline

Just got my new like new ''99. Can you run mid grade or regular if your not mashing it hard?

Post #: 1

RE: Regular Gas ? - 11/19/2008 7:16:07 PM

Dave01

Posts: 690
Joined: 9/24/2005
Status: offline

Yes, but why do that? Premium is under $2.50/gallon. What will happen if you buy lower octane fuel is that the ECU will retard timing and you will lose a chunk of horsepower. And if for some reason your knock sensors are bad, you could destroy your engine. Now if you commute 100 miles every day in slow traffic, consider getting a daily driver and save the C5 for Fridays and weekends.

As you can see, my opinion is this: If you own a Corvette, don''t use Winston tires, Monroe shocks, or regular gas- it just aint right!

_____________________________

2001 MN6 Coupe, all options
Halltech Stinger-R intake w/cold air mod - see
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BPP shifter w/glass elegance shift knob
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(in reply to CB)

Post #: 2

RE: Regular Gas ? - 11/26/2008 10:02:21 PM

drinker

Posts: 3
Joined: 8/26/2008
Status: offline

You know Dave I totally agree....don''t complain about the insurance,gas,tires....you can almost beat anyone on track day, if not everyone, then get 28 mpg on the way home, for 4 bucks more a fill up get the good stuff...just my opinion

(in reply to Dave01)

Post #: 3

RE: Regular Gas ? - 11/27/2008 2:01:46 PM

Lee Willis

Posts: 1991
Joined: 7/27/2005
Status: offline

I agree it is nonsensical to routinely use regular in a ''vette. In an emergency (you''re low on fuel and the station has no premium) it surely won''t hurt. However, if I were going to run regular all the time, I would have the engine tuned for that, by having it dynoed tuned while running regular. You''d lose a chunk of power, but calibrate the ECU to do the best possible, and not to depend completely on the knock sensors.

_____________________________

2007 Aston Martin Vantage Prodrive
Lincoln MKZ "Grandfather car"
''98 Z28 with iron LS 408, NOS, tricks, street driven mid 9s (sold to my youngest son for $1, Aug 28, ''07)
''02 SCd 427 cid ZO6, 704 RWHP, sold Aug. 28, ''07

(in reply to drinker)

Post #: 4