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1958 Corvette type of fuel?

Old 06-20-2018, 12:54 PM
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Stepan K
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Default 1958 Corvette type of fuel?

hello, please I have purchased 1958 Corvette. What type of fuel I should use? Someone told me premium, but do I have to add any additive like lead? The engine is 283 V8. Thanks for any response

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Old 06-20-2018, 01:16 PM
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Nowhere Man
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I would try 89 and see how it runs If it doesn’t ping under load your good to go. And don’t put anything that isnt gas into the tank
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Old 06-20-2018, 01:44 PM
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Redbird
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Start with a quarter tank of regular and see how it runs. Any problems, go up to next grade.
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Old 06-20-2018, 02:30 PM
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vetintheblood
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Use the highest premium you can get and add Lucas ethanol conditioner
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Old 06-20-2018, 03:05 PM
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Originally Posted by vetintheblood View Post
Use the highest premium you can get and add Lucas ethanol conditioner

what does that snake oil really do. And do you have proof that it does anything
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Old 06-20-2018, 04:33 PM
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mrtexas
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Originally Posted by vetintheblood View Post
Use the highest premium you can get and add Lucas ethanol conditioner
I agree. Makes my XOM stock go up.
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Old 06-20-2018, 04:37 PM
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GTOguy
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Originally Posted by Redbird View Post
Start with a quarter tank of regular and see how it runs. Any problems, go up to next grade.
This^^^^. Lower octane fuel has more energy than high octane because it burns faster. For the maximum efficiency, performance, and power, always run the lowest octane you can without detonation. The statement of running the highest octane you can with conditioner will net you nothing but wasted money and less performance. To each his own......
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Old 06-20-2018, 05:54 PM
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Originally Posted by GTOguy View Post
This^^^^. Lower octane fuel has more energy than high octane because it burns faster. For the maximum efficiency, performance, and power, always run the lowest octane you can without detonation. The statement of running the highest octane you can with conditioner will net you nothing but wasted money and less performance. To each his own......
Higher octane gasoline has slightly more energy since it has more toluene/xylenes aromatics which are denser and higher octane than the straight chain
paraffins which are lower octane. But you are correct, run the lowest octane that doesn't knock in your engine. Anything higher is wasted
money. Octane rating has nothing to do with energy, it is just a measure of the resistance to pre-ignition or knocking
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