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Re: Unleaded gas or use a lead additive for new en
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Posted by John In Iowa on August 30, 2006 at 09:31:50 from (12.152.205.44):
In Reply to: Unleaded gas or use a lead additive for new engine posted by scott#2 on August 30, 2006 at 05:23:13:
Being a shade tree mechanic myself and working for a petroleum pipeline at a loading and pumping terminal I have seen the phase out of lead out of gasoline and seeing the phase out of sulfur out of fuel oil. The biggest problems that came out of Nolead gasoline were deposits buildup on the intake valves in test engines. Because of this Nolead gasoline in the US cannot be sold without a detergent additive to reduce Intake Valve deposits in it. The other problems that I seen on my own tractor is the lack of octane in Nolead. I have a Farmall 400 that is a working tractor. With step pistons and with the lack of octane of regular Nolead it will ping a lot when a load is put on it. Regular Nolead has an octane above 87. The old leaded Regular had an octane above 89 and those two points does make difference. Running Gasohol, which is a 10% blend of gasoline and ethanol, rises the octane two points and the 400 runs a lot better and pulls better. The trade off is that you got to use fresh fuel, if you let it set a fuel barrel for long period of time the ethanol will gather moisture and will fall out of the gasoline to the bottom and once you pump that into your fuel tank it will make a one heck of a mess. Also when parking the tractor for a long period of time you need to drain the carburetor. It rust and set up and make another mess. I do use a lead substitute - CD2 that is a detergent base additive. As hard as I work my tractor it can’t hurt. John In Iowa
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