Gassssssss - Team Camaro Tech
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post #1 of 6 (permalink) Old Mar 21st, 10, 05:27 AM Thread Starter
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gary
 
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Gassssssss

hi all just want to know is it better to use premium gas or regular grade for my 327, nothing has been changed out on the motor,has 59,000 miles on it,i use premium gas in other toys, but want to make sure its safe for my historic peice thanks gary
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post #2 of 6 (permalink) Old Mar 21st, 10, 06:50 AM
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Re: gassssssss

I've been using premium gas in my stock 350 for years. Maybe I don't really need to, but I've never had any issues.

Joe
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post #3 of 6 (permalink) Old Mar 21st, 10, 07:27 AM
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Re: Gassssssss

The higher octane isn't gonna hurt anything at all. Just your wallet.
If you've got high compression and it pings, use the higher octane. If not, save yourself some money.

What are you guys using as a lead substitute? That only applies to heads that don't have modern hardened seats.

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post #4 of 6 (permalink) Old Mar 21st, 10, 10:44 AM
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Re: Gassssssss

If the compression is low enough, (and on a stock 327 it just might be) you shouldn't need the higher octane. I had some discussions with my technicians about the use of premium vs regular grade in normally aspirated engines quite a while ago, and if I recall their opinion correctly higher octane fuel is more difficult to ignite in the combustion chamber and therefore the lower octane or mid grade will burn more completely.
There are of course many other factors that can influnce this, but try some regular grade and maybe make a few timing adjustments. You just might be able to save 10 cents a litre or so.

Paul

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post #5 of 6 (permalink) Old Mar 21st, 10, 11:10 AM
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Re: Gassssssss

Quote:
What are you guys using as a lead substitute? That only applies to heads that don't have modern hardened seats.
__________________

i used a product called I think "Instead O Lead". I'm out of it now so this is from memory. I think it is made by Bardahl and got it at Walmart.

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post #6 of 6 (permalink) Old Mar 21st, 10, 11:43 AM Thread Starter
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Re: Gassssssss

thanks guys for the input i'll stick with regular gas,just thought it would be better for the motor
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