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fuel additives

Petrol additives may increase petrol's octane rating, thus allowing the use of higher compression ratios for greater efficiency and power, or act as corrosion inhibitors or lubricants. Other additives include metal deactivators, oxygenates and antioxidants.
Some additives are harmful and are regulated or banned in some countries.

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  1. BMK84CJ572

    Misc. What type of gas is best for an old engine?

    What is the best fuel to run in my '72 CJ with the 4.2L? I assume ethanol free, but should I use a lead replacement additive or anything else? This may have been posted previously, but I'll post again just in case... Here's a good link ethanol free gas stations if you are looking for ethanol...
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