Flathead V8 spark plug colour variation

[Howard]

Originally Posted by Phil Waterman

Hi Richard
How old is the gas, modern gas (at least the stuff in the US ) goes bad so quickly that I've given up trying to do any engine tuning without having system filled with fresh gas. Also find that it take an hour or so drive to clean out the engine.
Of course my CMPs have two less cylinders to start with.
Cheers Phil

Phil, Lucas make a 'fuel stabiliser' (or stabiliZer in your version of English) that I can recommend. Prevents the fuel going sour, even over an extended period. Great for ski boats during winter storage etc.