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.


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the dynamic duo

c3vr life member #97

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

Hmm... I thought it would have raised it more.

should you use a gas stabilizer for winter storage?  3-4 months approx. if so, what stabilizer you guys (and gals) reccomend? 

[QUOTE=slickwilly63]should you use a gas stabilizer for winter storage?  3-4 months approx. if so, what stabilizer you guys (and gals) reccomend? [/QUOTE]


Yes!...Absolutely.

Stabil is the best I have used.....and, use it in the best quality fuel you can get, buy, or make.

An FYI, *Toluene* is the additive removed at the refineries that lowers octane, this can be bought at paint stores and will boost your octane full points if you follow correct recipes and ratios per gasoline.
Toluene is part of the "rocket fuel" recipe, and, is an old hot-rodders trick from the 60's.

Also ANOTHER FYI about Toluene:
I am told meth labs use this ( I have no clue to the truth about this), so,  you might get strange looks when buying it....LOL






Merry Christmas and Happy Holidays!!!


Jim


Strats-N-Vettes2009-12-25 12:11:54

Thanks for the reply Jim....I will definately get her some fuel stabilizer.                                                 Merry Xmas,   Bill

I'll add my 2 cents for regular gas.  I have an 87 with 140,000 and get about 23 around town and 26-28 on the highway.  I used premium, then mid, then tried regular and could see no change, so I've stayed with regular and I get better mileage than my daughter's 4 cyl turbo PT Cruiser and my wife's v-6 Pacifica wagon.  Go figure that t a two decade old v-8 from America would beat the new cars and most of the imports.  Driving it 1600-200 miles a month, the difference in cost is a tidy sum.  I would expect that premium would give it a bit more power, but I don't gun the thing, anyway, since it is 22 years old and needs a little help from a Cub Scout to cross the road, once in a while.  Anyway, that's my experience.

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http://www.C4VetteRegistry.com/member_uploads/13701_13800/13759/Corvette-at-home201216202023r.jpg

Gordon Killibrew says that any stock C4, except ZR-1s, can use regular. 

Corveddie

I did use regular a few times last year when gas in Jersey hit the $4/gal mark, but switched back to premium after a couple of tanks.  I did notice a difference in performance and made a decision it want worth the few dollars I saved.  I stick to either Shell or Sunoco.  Chevron would be my first choice but there are no Chevron retailers in my area.