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Fuel Additives???

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68PONY:
Greg , i use 91 and 95 with the lead additive in the olds , these old motors don't have much comp so really a waste of money using the 98 , just make sure you don't use E10 or if it says 91 with ethenol as it can eat at the gaskets in the carby , The nulon lead additive comes in a 100ml bottle and a 1 litre bottle , i keep the 100ml bottle in the glove box and just refill it from the 1 litre bottle as needed.
cheers chris.

bonnevista:
http://100megsfree4.com/cadillac/cad1960/cad60d.htm

1959 - 1960 was the start of the high compression era.  I'd be putting high octane fuel in it.  I think the lead additive thing is snake oil, but that's just my view - or do Pontiacs just have better quality heads than everyone else??:gotya:

68PONY:

--- Quote from: bonnevista link=topic=3453.msg21036#msg21036 ---http://100megsfree4.com/cadillac/cad1960/cad60d.htm

1959 - 1960 was the start of the high compression era.  I'd be putting high octane fuel in it.  I think the lead additive thing is snake oil, but that's just my view - or do Pontiacs just have better quality heads than everyone else??:gotya:
--- End quote ---

Wow didn't realise they had 10.5.1 comp , yep premium it is , as for the additive i think its cheap insurance at 1ml per litre it can't hurt , our 55 olds only has 8.5.1 so premium is not going to make a difference.

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