Leaded fuel

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Leaded fuel

Home > Discussion Forum > Mechanic's Corner - Engines

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All Messages in Thread	Author	Date
Leaded fuel	Dan	6-22-06
I'm running a 440-3 in a 1974 motorhome. These engines were desighned for leaded fuel. Am I ok using unleaded or do I need a lead additive?
Re: leaded fuel	Earle Hasney	7-12-06
If I am not mistaken I beleave that the 74 440 was setup for unleaded. However, WalMart sells a lead additive, it is a big bottle, about 5.00. It says for off the road use only, however, it never use to say that. I used it for a number of years without any valve failure. Still think the 74 used unleaded though.