609albert Posted July 13, 2009 Share Posted July 13, 2009 HI GUY'S , anyone using a lead additive to your mack gas engines ? pro's /con's Quote Link to comment https://www.bigmacktrucks.com/topic/10031-lead-additive/ Share on other sites More sharing options...
KO1927 Posted July 13, 2009 Share Posted July 13, 2009 My Mack is a diesel, but here's the science of leaded gas.The lead helps lubricate the carburetor and valve guides. The reason it was removed from gasoline in the mid 70's is because it hasbad side effects for catalytic converters and the whole environmental movement thing.The valve guides are the key part, without the lead additive, they will wear faster. Newer engines are designed to be run without the lead.I use a lead substitute additive in all gas engines made before 1975. The only cons I've experienced is the cost of the additive (no big deal) and themental math to figure out the ratio of additive to gas (also no big deal). Quote Link to comment https://www.bigmacktrucks.com/topic/10031-lead-additive/#findComment-38054 Share on other sites More sharing options...
Greg Rider Posted July 13, 2009 Share Posted July 13, 2009 I run additive in every fill up. I only put a few hundred miles on per year but I rebuild my carb about every other year just because of sitting. I also use a stabilizer in the gas. Faith has the EN330 flathead. Quote #1 on A-model registryIf I drink because of work, why can't I drink at work? Link to comment https://www.bigmacktrucks.com/topic/10031-lead-additive/#findComment-38059 Share on other sites More sharing options...
Maddog13407 Posted July 14, 2009 Share Posted July 14, 2009 we run lead additive in our B-42, En402, seems to make it run and perform a lot better. pretty good and make the exhaust a little rich to, helps keep the tailgators off your back end to.. , Matt Quote Link to comment https://www.bigmacktrucks.com/topic/10031-lead-additive/#findComment-38074 Share on other sites More sharing options...
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