what gas to use

after reading mm post about him wanting to use regular gas, i got me wondering. i know that they say a corvette can run on regular gas but i have always been told it had to use premium.

i have a L98. i put on a new throttle body with 52mm opening instead of the stock 48 and the injectors are 24# instead of 22#. the exhaust was changed to hi flow converter and low backpressure mufflers.

any thoughts on this would be appreciated.

I always use the highest octane I can find in everything I own...yep...including my lawnmower.

There is just too much blended fuel from all manufacturers for me to chance pre-detonation or gunk.

If you must; experiment with lower grades (mid grade) from the larger oil co. first....if you find any pre-detonation; go back up to the premium grade.



G/L



Jim

My 87 is a Canadian model ( I don't know if there is a difference) the only reference to fuel marked on the car is "unleaded only".

[QUOTE=eddie20890]after reading mm post about him wanting to use regular gas, i got me wondering. i know that they say a corvette can run on regular gas but i have always been told it had to use premium.

i have a L98. i put on a new throttle body with 52mm opening instead of the stock 48 and the injectors are 24# instead of 22#. the exhaust was changed to hi flow converter and low backpressure mufflers.

any thoughts on this would be appreciated.
[/QUOTE] Adams' Apple2009-03-31 10:18:49

loss of about 10 hp using regular-same effect you would feel if you had a passenger on board vs driving just yourself

i agree...  better to use premium at all time    on my 92 near the gaz cap there is a note *** premium RECOMMANDED***

I started using 87 octane fuel when gas prices exceeded $4 per gallon last summer because I was told the ECU would compensate for the change in octane.  I was also told that I would see lower gas mileage as a result of this change and that the thirty cents I would save on gallons of gas would be lost in my MPG.  I saw no difference.  I believe any Vette, 1982 and newer can use 87 octane without any problems with the car.  Google it just to be sure.  I also just took apart my motor for an upgrade and the motor looked brand new.  Synthetic oil, can't say enough good things about it.

has anyone used octane booster in their fuel? I considered this option

[QUOTE=LewLinda1199]has anyone used octane booster in their fuel? I considered this option[/QUOTE]

Yeas, but most store bought octane boosters do NOT  move full points  (90.9 to 91.9)
They mostly move so small (if at all) . 90.8 to 90.9.

To achieve moving full points you have to spend dollars, or make it yourself.

Do a search on "rocket fuel" there is a recipe that moves octane in full points.

On track days I will blend premium gas with racing fuel to achieve the octane rating I want, and still be able to street drive (traffic w/AC) the rest of the fuel, and then do a re-learn when I am going back to the crappy pump gas.

Another thing to remember is; though the pump states the fuel you are purchasing is (lets say) 90.9, it isnt, thats the formulated rating at the plant...
...whats at the pump may be 89.9 maybe 90.1 or 2.
Gas does get old and stale (obviously), but station owners do not go out and test their fuel nor do they test and "boost" to pump fuel "as rated" once its in their tanks.




Jim