1963 Inline 6 Lead Additive or no

[bh357]

I have a 1963 Merc 1000 inline 6. Should I use a lead additive, or is this not needed? I do plan on running premium (91 or 93 octane).<br /><br />Thanks

 

[Clams Canino]

Re: 1963 Inline 6 Lead Additive or no

No lead additive needed or wanted. It's a two stroke, lead was for the valves on a 4 stroke.<br /><br />Set the max advance at 34 degrees and run mid-grade gas. Premium could be worse depending on alcohol content.<br /><br />-W

 

[mellowyellow]

Re: 1963 Inline 6 Lead Additive or no

87 octane with quality oil 50/1 is all you need.<br />may want to adjust timing a bit to allow for new<br />fuel. not sure, but I believe merc put out a<br />bulletin on it and they said 23 degrees???<br />hopefully someone else will chime in to confirm.<br />you can also use the red "search" button above.<br />there has been tons of discussions on octane and<br />correct timing.<br />good luck,<br />M.Y.